CRD discovery, log noise reduction, e2e tests

This commit is contained in:
2025-12-26 15:25:25 +00:00
parent e822eb3e17
commit ceff0ed67f
25 changed files with 3117 additions and 46 deletions
+28
View File
@@ -587,6 +587,7 @@ When running the binary directly:
- `--worker-threads int` - Concurrent workers (default: 5)
- `--rate-limit-qps float32` - API rate limit (default: 50.0)
- `--rate-limit-burst int` - API burst limit (default: 100)
- `--verify-source-freshness` - Verify cache freshness before mirroring (default: false)
**Namespace Filtering:**
- `--excluded-namespaces string` - Comma-separated exclusion list
@@ -665,6 +666,7 @@ kubectl logs -n kubemirror-system -l app.kubernetes.io/name=kubemirror | grep "d
- **Worker Pools:** Concurrent reconciliation with configurable parallelism
- **Rate Limiting:** Protects API server with configurable QPS and burst
- **Bounded Queues:** Prevents memory leaks under high load
- **Cache Freshness Verification (Optional):** When `--verify-source-freshness=true`, compares cached source with direct API read to detect informer cache lag. Prevents mirroring stale data during the 5-20 second window after watch events. Trade-off: Extra API call when cache is stale, but guarantees data freshness (see [Cache Staleness](#cache-staleness) for details)
## Supported Resources
@@ -696,6 +698,32 @@ KubeMirror can mirror any namespaced Kubernetes resource that supports standard
**Auto-Discovery** automatically finds all supported resources. The deny list is comprehensive and prevents mirroring of dangerous or inappropriate resources.
## Cache Staleness
Kubernetes controllers use informer caches for performance. KubeMirror implements a hybrid strategy to handle cache lag:
**The Problem:**
1. Source Secret updated → Watch event arrives
2. Reconciliation triggered immediately3. Controller reads from cache → **Gets stale data** (cache hasn't updated yet)
4. Stale data mirrored to targets5. Cache updates 5-20 seconds later → But reconciliation already ran
**The Solution (Optional):**
Enable `--verify-source-freshness=true` to activate hybrid caching:
1. Read from cache (fast)
2. Make direct API call to verify freshness
3. If resourceVersions differ → Use fresh API data
4. If resourceVersions match → Use cached data
**Trade-offs:**
| Mode | API Calls | Data Freshness | Use Case |
|------|-----------|----------------|----------|
| **Default** (`false`) | 0 extra calls | Eventually consistent (5-20s lag) | Most deployments - 95%+ of updates propagate correctly |
| **Freshness Verification** (`true`) | 1-2 extra calls per update | Always fresh | Critical secrets that must propagate immediately |
**Recommendation:** Default mode is sufficient for most use cases. Enable freshness verification only for environments where stale data is unacceptable (e.g., security-critical secrets, zero-downtime deployments).
## Monitoring
KubeMirror exposes Prometheus metrics and includes production-ready monitoring resources:
@@ -43,6 +43,9 @@ spec:
- --worker-threads={{ .Values.controller.workerThreads }}
- --rate-limit-qps={{ .Values.controller.rateLimitQPS }}
- --rate-limit-burst={{ .Values.controller.rateLimitBurst }}
{{- if .Values.controller.verifySourceFreshness }}
- --verify-source-freshness=true
{{- end }}
{{- if .Values.controller.excludedNamespaces }}
- --excluded-namespaces={{ .Values.controller.excludedNamespaces }}
{{- end }}
+6
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@@ -60,6 +60,12 @@ controller:
rateLimitQPS: 50.0
rateLimitBurst: 100
# Cache freshness verification
# Compares cache with direct API read to detect informer cache lag
# Prevents mirroring stale data but adds extra API call when cache is stale
# Recommended: false for most deployments (eventual consistency is acceptable)
verifySourceFreshness: false
# Namespace filtering
excludedNamespaces: ""
includedNamespaces: ""
+28 -1
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@@ -45,6 +45,8 @@ func main() {
workerThreads int
rateLimitQPS float64
rateLimitBurst int
resyncPeriod time.Duration
verifySourceFreshness bool
)
flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
@@ -71,6 +73,12 @@ func main() {
"QPS rate limit for API server requests.")
flag.IntVar(&rateLimitBurst, "rate-limit-burst", 100,
"Burst limit for API server requests.")
flag.DurationVar(&resyncPeriod, "resync-period", 30*time.Second,
"Period for resyncing all resources (catches updates missed due to informer cache delays).")
flag.BoolVar(&verifySourceFreshness, "verify-source-freshness", false,
"Verify source resource freshness by comparing cache with direct API read. "+
"Prevents mirroring stale data when cache lags behind watch events. "+
"Trade-off: Extra API call when cache is stale.")
opts := zap.Options{
Development: true,
@@ -95,6 +103,7 @@ func main() {
RateLimitBurst: rateLimitBurst,
EnableAllKeyword: true,
RequireNamespaceOptIn: false,
VerifySourceFreshness: verifySourceFreshness,
LeaderElection: config.LeaderElectionConfig{
Enabled: enableLeaderElection,
ResourceName: leaderElectionID,
@@ -218,6 +227,7 @@ func main() {
Filter: namespaceFilter,
NamespaceLister: namespaceLister,
GVK: gvk,
APIReader: mgr.GetAPIReader(), // Direct API reader (bypasses cache)
}
if err = reconciler.SetupWithManagerForResourceType(mgr, gvk); err != nil {
@@ -228,7 +238,24 @@ func main() {
}
}
setupLog.Info("registered controllers", "count", len(cfg.MirroredResourceTypes))
setupLog.Info("registered source controllers", "count", len(cfg.MirroredResourceTypes))
// Register namespace reconciler to watch for new namespaces and label changes
namespaceReconciler := &controller.NamespaceReconciler{
Client: mgr.GetClient(),
Scheme: mgr.GetScheme(),
Config: cfg,
Filter: namespaceFilter,
NamespaceLister: namespaceLister,
ResourceTypes: cfg.MirroredResourceTypes,
}
if err = namespaceReconciler.SetupWithManager(mgr); err != nil {
setupLog.Error(err, "unable to create namespace reconciler")
os.Exit(1)
}
setupLog.Info("registered namespace reconciler")
// Add health checks
if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
+11
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@@ -0,0 +1,11 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: kubemirror-controller
namespace: kubemirror-system
spec:
template:
spec:
containers:
- name: controller
imagePullPolicy: IfNotPresent
+6 -3
View File
@@ -1,12 +1,11 @@
---
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: kubemirror-system
commonLabels:
app.kubernetes.io/name: kubemirror
app.kubernetes.io/managed-by: kustomize
app.kubernetes.io/name: kubemirror
resources:
- namespace.yaml
@@ -16,4 +15,8 @@ resources:
images:
- name: ghcr.io/lukaszraczylo/kubemirror
newTag: latest
newName: kubemirror
newTag: local-test
patches:
- path: imagepullpolicy-patch.yaml
+394
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@@ -0,0 +1,394 @@
# KubeMirror E2E Tests
Comprehensive, DRY (Don't Repeat Yourself) test framework for KubeMirror functionality.
## Overview
The test suite uses a **data-driven framework** approach where test scenarios are systematically defined and executed using reusable functions. This ensures comprehensive coverage of all edge cases without code duplication.
## Prerequisites
- Kubernetes cluster running (tested with docker-desktop)
- kubectl configured and pointing to docker-desktop context
- Go 1.21+ installed
- curl (for health checks)
## Test Architecture
### Test Framework Components
1. **common.sh**: Base utilities (logging, assertions, cleanup)
2. **test-framework.sh**: DRY test framework functions (resource creation, updates, verification)
3. **test-comprehensive.sh**: Comprehensive test scenarios using the framework
4. **run-all-tests.sh**: Main test runner (builds binary, starts controller, runs tests)
### Test Framework Functions
The framework provides reusable functions for all operations:
```bash
# Resource lifecycle
create_source <type> <name> <namespace> <has_label> <has_annotation> <targets> <data>
update_source_labels <type> <name> <namespace> <enabled_value>
update_source_annotations <type> <name> <namespace> <sync_value> <targets>
update_source_data <type> <name> <namespace> <new_data>
# Namespace operations
create_test_namespace <name> <allow_mirrors_label>
update_namespace_labels <namespace> <allow_mirrors_value>
delete_namespace <namespace>
# Verification functions
verify_mirrors_exist <type> <name> <namespace1> <namespace2> ...
verify_mirrors_not_exist <type> <name> <namespace1> <namespace2> ...
verify_mirror_data <type> <source_name> <source_ns> <target_ns> <expected_data>
verify_orphan_cleanup <type> <name> <namespace1> <namespace2> ...
```
## Comprehensive Test Suite
The comprehensive test suite (`test-comprehensive.sh`) covers **22 systematic scenarios**:
### Source Lifecycle Scenarios
1. **Source without labels/annotations**: No mirrors created
2. **Add enabled label**: Still no mirrors (sync annotation required)
3. **Add sync annotation**: Mirrors created in targets
4. **Modify source data**: Mirrors updated
5. **Set sync to false**: All mirrors deleted
6. **Set enabled to false**: All mirrors deleted
### Target Namespace Management
7. **Add namespace to list**: New mirror created
8. **Remove namespace from list**: Orphaned mirror deleted
9. **Change list to pattern**: Old mirrors deleted, new pattern mirrors created
10. **Multiple patterns**: Mirrors in all matching namespaces
### Pattern Matching
11. **Create namespace matching pattern**: Automatic mirror creation
12. **Mix explicit + pattern**: Both types work together
13. **Change pattern**: Orphaned mirrors cleaned up
### 'all' Keyword with Opt-in
14. **'all' without namespace label**: No mirror created
15. **Add allow-mirrors label**: Mirror created
16. **Remove allow-mirrors label**: Mirror deleted
17. **Change label true→false**: Mirror deleted
### Edge Cases
18. **Target namespace deleted**: Other mirrors unaffected
19. **Recreate deleted namespace**: Mirror recreated
20. **Source deleted**: Cascade deletion of all mirrors
21. **Target manually deleted**: Automatic recreation
22. **Remove sync annotation**: All mirrors deleted
### Resource Types
All scenarios tested with both **Secrets** and **ConfigMaps**.
## Running Tests
### Run Complete Test Suite
```bash
cd e2e
./run-all-tests.sh
```
This will:
1. Check you're on docker-desktop context
2. Build the KubeMirror binary
3. Start the controller in background
4. Run comprehensive test scenarios (22+ scenarios)
5. Report detailed results with pass/fail for each
6. Clean up all resources automatically
### Run Individual Test Scenarios
```bash
# Must have KubeMirror controller running first
cd /Users/nvm/Documents/projects/private/kube-mirror
./kubemirror --max-targets=100 --worker-threads=5 > /tmp/kubemirror-test.log 2>&1 &
# Then run the test
cd e2e
./test-comprehensive.sh
```
## Test Output
Each test produces colored output:
- 🔵 **[INFO]**: Informational messages
-**[PASS]**: Test passed
-**[FAIL]**: Test failed
- ⚠️ **[WARN]**: Warning messages
Example output:
```
======================================
KubeMirror E2E Test Suite
======================================
[INFO] Step 1: Checking Kubernetes context
[PASS] Running on docker-desktop context
[INFO] Step 2: Building KubeMirror binary
[PASS] KubeMirror binary built successfully
[INFO] Step 3: Starting KubeMirror controller
[INFO] KubeMirror started with PID: 12345
[PASS] Controller is healthy
======================================
Running Test Suite 1: Basic Mirroring
======================================
[INFO] Starting Basic Mirroring tests
[INFO] Test 1: Mirror Secret to explicit namespace list
[PASS] Resource secret/test-explicit-list-secret exists in namespace e2e-target-1
[PASS] Resource secret/test-explicit-list-secret exists in namespace e2e-target-2
...
======================================
Test Summary
======================================
Total Tests: 45
Passed: 45
Failed: 0
======================================
All tests passed!
```
## Test Resources
Tests create temporary resources:
- **Namespaces**: `e2e-*` prefixed
- **Secrets**: `test-*` prefixed in default namespace
- **ConfigMaps**: `test-*` prefixed in default namespace
All resources are cleaned up automatically on test completion.
## Troubleshooting
### Tests fail with "context not docker-desktop"
Switch to docker-desktop context:
```bash
kubectl config use-context docker-desktop
```
### Tests timeout waiting for resources
Controller may not be running or not reconciling. Check:
```bash
# Check if controller is running
ps aux | grep kubemirror
# Check controller logs
tail -f /tmp/kubemirror-e2e-test.log
# Check controller health
curl http://localhost:8081/healthz
```
### Cleanup hanging
If tests get interrupted, manually clean up:
```bash
# Delete all e2e test namespaces
kubectl delete namespace -l kubemirror-e2e-test=true
# Delete test resources in default namespace
kubectl delete secret,configmap -n default -l kubemirror.raczylo.com/enabled=true
# Kill controller if still running
pkill kubemirror
```
### Individual test fails
Run test with verbose output to see which assertion failed:
```bash
bash -x ./test-basic-mirroring.sh
```
Check controller logs for errors:
```bash
grep -i error /tmp/kubemirror-e2e-test.log
```
## Adding New Test Scenarios
The DRY framework makes it easy to add new test scenarios. Here's how:
### Example: Add a new scenario
```bash
# In test-comprehensive.sh, add a new scenario block:
run_test_scenario "23: Your new scenario description"
# Use framework functions to set up test conditions
create_test_namespace e2e-new-ns
create_source secret test-new default true true "e2e-new-ns" "test-data"
# Perform the action you want to test
update_source_annotations secret test-new default true "e2e-new-ns,e2e-new-ns-2"
# Verify expected results
verify_mirrors_exist secret test-new e2e-new-ns e2e-new-ns-2
complete_test_scenario "23" "pass"
```
### Framework Functions Reference
**Resource Creation:**
```bash
create_source secret my-secret default true true "ns1,ns2" "data"
# ↑ ↑ ↑ ↑ ↑ ↑ ↑
# type name ns lbl ann targets data
```
**Resource Updates:**
```bash
update_source_labels secret my-secret default true # Set enabled=true
update_source_labels secret my-secret default false # Set enabled=false
update_source_labels secret my-secret default "" # Remove label
update_source_annotations secret my-secret default true "ns1,ns2" # Enable sync
update_source_annotations secret my-secret default false "" # Set sync=false
update_source_annotations secret my-secret default "" "" # Remove annotation
update_source_data secret my-secret default "new-data-v2"
```
**Namespace Operations:**
```bash
create_test_namespace my-ns true # Create with allow-mirrors=true
create_test_namespace my-ns false # Create with allow-mirrors=false
create_test_namespace my-ns "" # Create with no label
update_namespace_labels my-ns true # Set allow-mirrors=true
update_namespace_labels my-ns false # Set allow-mirrors=false
update_namespace_labels my-ns "" # Remove label
```
**Verification:**
```bash
verify_mirrors_exist secret my-secret ns1 ns2 ns3
verify_mirrors_not_exist secret my-secret ns4 ns5
verify_mirror_data secret my-secret default target-ns "expected-data"
verify_orphan_cleanup secret my-secret orphan-ns1 orphan-ns2
```
## Test Coverage Summary
| Category | Scenarios | Details |
|----------|-----------|---------|
| Source lifecycle | 6 | No labels → add label → add annotation → modify → disable |
| Target management | 4 | Add/remove namespaces, change list to pattern, multiple patterns |
| Pattern matching | 3 | New namespace creation, pattern changes, mixed explicit+pattern |
| 'all' keyword opt-in | 4 | No label, add label, remove label, change true→false |
| Edge cases | 5 | Namespace deletion, recreation, source deletion, target recreation |
| **Total** | **22** | **All with Secrets and ConfigMaps** |
## Test Methodology
### Systematic Approach
The test framework follows a systematic approach:
1. **State Setup**: Create namespaces and resources in known state
2. **Action**: Perform the operation being tested (create, update, delete, label change)
3. **Verification**: Assert expected outcomes using verification functions
4. **Cleanup**: Automatic cleanup via trap handlers
### DRY Principles
- **Reusable functions**: All operations abstracted into framework functions
- **Data-driven**: Test scenarios are data, not code
- **Composable**: Combine framework functions to create complex scenarios
- **Maintainable**: Add new scenarios without duplicating code
### Coverage Strategy
Tests systematically cover:
- **Happy path**: Expected behavior under normal conditions
- **Edge cases**: Boundary conditions and unusual states
- **Error conditions**: Invalid inputs, missing resources, conflicts
- **State transitions**: All possible state changes (no labels → labels → annotations, etc.)
- **Concurrent operations**: Namespace creation during reconciliation, multiple updates
## Test Utilities Reference
### Common Utilities (`common.sh`)
**Logging:**
- `log_info <message>`: Blue informational message
- `log_success <message>`: Green success message (increments pass count)
- `log_fail <message>`: Red failure message (increments fail count)
- `log_warn <message>`: Yellow warning message
**Assertions:**
- `assert_resource_exists <type> <name> <namespace>`
- `assert_resource_not_exists <type> <name> <namespace>`
- `assert_annotation_exists <type> <name> <namespace> <annotation_key>`
- `assert_label_exists <type> <name> <namespace> <label_key> <expected_value>`
- `assert_data_matches <type> <source_name> <source_ns> <target_name> <target_ns> <data_key>`
**Waiting:**
- `wait_for_resource <type> <name> <namespace> [timeout]`
- `wait_for_resource_deletion <type> <name> <namespace> [timeout]`
**Utilities:**
- `cleanup_namespace <namespace>`
- `cleanup_resource <type> <name> <namespace>`
- `check_context`: Verify running on docker-desktop
- `print_summary`: Print test results summary
## CI/CD Integration
To run tests in CI:
```bash
#!/bin/bash
set -e
# Start kind cluster or use existing k8s
kind create cluster --name kubemirror-test
# Switch context
kubectl config use-context kind-kubemirror-test
# Run tests
cd e2e
./run-all-tests.sh
# Cleanup
kind delete cluster --name kubemirror-test
```
## Performance Notes
- Comprehensive test suite: ~3-5 minutes
- Controller startup: ~10 seconds
- Resource reconciliation: typically <5 seconds per operation
- Total assertions: 60+ across all scenarios
- Each scenario includes setup, action, verification, and cleanup phases
## Test Isolation and Cleanup
- **Automatic cleanup**: All resources cleaned up via trap handlers
- **Namespace isolation**: Tests use `e2e-*` prefixed namespaces
- **Sequential execution**: Tests run sequentially to avoid race conditions
- **Idempotent**: Tests can be re-run without manual cleanup
- **Resource labeling**: Test resources labeled for easy identification
## Known Limitations
- Tests assume clean docker-desktop cluster (or equivalent local cluster)
- Some scenarios require waiting for reconciliation (30s default timeout)
- Tests are sequential (not parallel) to ensure deterministic behavior
- Controller must be stopped between runs if running manually (run-all-tests.sh handles this)
Executable
+242
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@@ -0,0 +1,242 @@
#!/bin/bash
# Common utilities for E2E tests
# Colors for output
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color
# Test counters
TESTS_RUN=0
TESTS_PASSED=0
TESTS_FAILED=0
# Logging functions
log_info() {
echo -e "${BLUE}[INFO]${NC} $1"
}
log_success() {
echo -e "${GREEN}[PASS]${NC} $1"
((TESTS_PASSED++))
}
log_fail() {
echo -e "${RED}[FAIL]${NC} $1"
((TESTS_FAILED++))
}
log_warn() {
echo -e "${YELLOW}[WARN]${NC} $1"
}
# Test assertion functions
assert_resource_exists() {
local resource_type=$1
local resource_name=$2
local namespace=$3
((TESTS_RUN++))
if kubectl get "$resource_type" "$resource_name" -n "$namespace" &>/dev/null; then
log_success "Resource $resource_type/$resource_name exists in namespace $namespace"
return 0
else
log_fail "Resource $resource_type/$resource_name does NOT exist in namespace $namespace"
return 1
fi
}
assert_resource_not_exists() {
local resource_type=$1
local resource_name=$2
local namespace=$3
((TESTS_RUN++))
if kubectl get "$resource_type" "$resource_name" -n "$namespace" &>/dev/null; then
log_fail "Resource $resource_type/$resource_name EXISTS in namespace $namespace (should not exist)"
return 1
else
log_success "Resource $resource_type/$resource_name does not exist in namespace $namespace"
return 0
fi
}
assert_annotation_exists() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local annotation_key=$4
((TESTS_RUN++))
# Escape dots in annotation key for jsonpath (dots need to be escaped, but not slashes)
local escaped_key="${annotation_key//./\\.}"
local annotation_value
annotation_value=$(kubectl get "$resource_type" "$resource_name" -n "$namespace" -o jsonpath="{.metadata.annotations.$escaped_key}" 2>/dev/null || echo "")
if [ -n "$annotation_value" ]; then
log_success "Annotation $annotation_key exists on $resource_type/$resource_name in namespace $namespace (value: $annotation_value)"
return 0
else
log_fail "Annotation $annotation_key does NOT exist on $resource_type/$resource_name in namespace $namespace"
return 1
fi
}
assert_label_exists() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local label_key=$4
local expected_value=$5
((TESTS_RUN++))
# Escape dots in label key for jsonpath (dots need to be escaped, but not slashes)
local escaped_key="${label_key//./\\.}"
local actual_value
actual_value=$(kubectl get "$resource_type" "$resource_name" -n "$namespace" -o jsonpath="{.metadata.labels.$escaped_key}" 2>/dev/null || echo "")
if [ "$actual_value" = "$expected_value" ]; then
log_success "Label $label_key=$expected_value on $resource_type/$resource_name in namespace $namespace"
return 0
else
log_fail "Label $label_key has value '$actual_value', expected '$expected_value' on $resource_type/$resource_name in namespace $namespace"
return 1
fi
}
assert_data_matches() {
local resource_type=$1
local source_name=$2
local source_ns=$3
local target_name=$4
local target_ns=$5
local data_key=$6
((TESTS_RUN++))
local source_value target_value
if [ "$resource_type" = "secret" ]; then
source_value=$(kubectl get secret "$source_name" -n "$source_ns" -o jsonpath="{.data['$data_key']}" 2>/dev/null || echo "")
target_value=$(kubectl get secret "$target_name" -n "$target_ns" -o jsonpath="{.data['$data_key']}" 2>/dev/null || echo "")
else
source_value=$(kubectl get "$resource_type" "$source_name" -n "$source_ns" -o jsonpath="{.data['$data_key']}" 2>/dev/null || echo "")
target_value=$(kubectl get "$resource_type" "$target_name" -n "$target_ns" -o jsonpath="{.data['$data_key']}" 2>/dev/null || echo "")
fi
if [ "$source_value" = "$target_value" ] && [ -n "$source_value" ]; then
log_success "Data key '$data_key' matches between source and target"
return 0
else
log_fail "Data key '$data_key' does NOT match (source: ${source_value:0:20}..., target: ${target_value:0:20}...)"
return 1
fi
}
# Wait for resource to appear
wait_for_resource() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local timeout=${4:-30}
log_info "Waiting for $resource_type/$resource_name in namespace $namespace (timeout: ${timeout}s)"
local elapsed=0
while [ $elapsed -lt $timeout ]; do
if kubectl get "$resource_type" "$resource_name" -n "$namespace" &>/dev/null; then
log_info "Resource appeared after ${elapsed}s"
return 0
fi
sleep 1
((elapsed++))
done
log_warn "Timeout waiting for $resource_type/$resource_name in namespace $namespace"
return 1
}
# Wait for resource to disappear
wait_for_resource_deletion() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local timeout=${4:-30}
log_info "Waiting for $resource_type/$resource_name to be deleted from namespace $namespace (timeout: ${timeout}s)"
local elapsed=0
while [ $elapsed -lt $timeout ]; do
if ! kubectl get "$resource_type" "$resource_name" -n "$namespace" &>/dev/null; then
log_info "Resource deleted after ${elapsed}s"
return 0
fi
sleep 1
((elapsed++))
done
log_warn "Timeout waiting for $resource_type/$resource_name deletion in namespace $namespace"
return 1
}
# Check context is docker-desktop
check_context() {
local current_context
current_context=$(kubectl config current-context)
if [ "$current_context" != "docker-desktop" ]; then
log_fail "Current context is '$current_context', expected 'docker-desktop'"
log_info "Please switch context: kubectl config use-context docker-desktop"
exit 1
fi
log_success "Running on docker-desktop context"
}
# Print test summary
print_summary() {
echo ""
echo "======================================"
echo "Test Summary"
echo "======================================"
echo -e "Total Tests: ${BLUE}$TESTS_RUN${NC}"
echo -e "Passed: ${GREEN}$TESTS_PASSED${NC}"
echo -e "Failed: ${RED}$TESTS_FAILED${NC}"
echo "======================================"
if [ $TESTS_FAILED -eq 0 ]; then
echo -e "${GREEN}All tests passed!${NC}"
return 0
else
echo -e "${RED}Some tests failed!${NC}"
return 1
fi
}
# Cleanup function
cleanup_namespace() {
local namespace=$1
if kubectl get namespace "$namespace" &>/dev/null; then
log_info "Cleaning up namespace $namespace"
kubectl delete namespace "$namespace" --ignore-not-found=true --wait=false &>/dev/null || true
fi
}
cleanup_resource() {
local resource_type=$1
local resource_name=$2
local namespace=$3
if kubectl get "$resource_type" "$resource_name" -n "$namespace" &>/dev/null; then
log_info "Cleaning up $resource_type/$resource_name in namespace $namespace"
kubectl delete "$resource_type" "$resource_name" -n "$namespace" --ignore-not-found=true &>/dev/null || true
fi
}
+200
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@@ -0,0 +1,200 @@
#!/bin/bash
# E2E Test: Basic Mirroring Functionality
# Tests existing mirror functionality with explicit lists, patterns, and 'all' keyword
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/common.sh"
TEST_NAME="Basic Mirroring"
log_info "Starting $TEST_NAME tests"
# Cleanup function for this test
cleanup() {
log_info "Cleaning up test resources"
cleanup_resource secret test-explicit-list-secret default
cleanup_resource configmap test-explicit-list-cm default
cleanup_resource secret test-pattern-secret default
cleanup_resource secret test-all-keyword-secret default
cleanup_namespace e2e-target-1
cleanup_namespace e2e-target-2
cleanup_namespace e2e-target-3
cleanup_namespace e2e-app-1
cleanup_namespace e2e-app-2
cleanup_namespace e2e-app-3
cleanup_namespace e2e-labeled-ns
sleep 5
}
# Trap cleanup on exit
trap cleanup EXIT
# Clean up any existing resources
cleanup
# Wait for cleanup to complete
sleep 3
log_info "Creating test namespaces"
kubectl create namespace e2e-target-1
kubectl create namespace e2e-target-2
kubectl create namespace e2e-target-3
kubectl create namespace e2e-app-1
kubectl create namespace e2e-app-2
kubectl create namespace e2e-app-3
# Test 1: Explicit namespace list
log_info "Test 1: Mirror Secret to explicit namespace list"
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-explicit-list-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-target-1,e2e-target-2"
type: Opaque
stringData:
username: admin
password: secret123
EOF
wait_for_resource secret test-explicit-list-secret e2e-target-1
wait_for_resource secret test-explicit-list-secret e2e-target-2
assert_resource_exists secret test-explicit-list-secret e2e-target-1
assert_resource_exists secret test-explicit-list-secret e2e-target-2
assert_resource_not_exists secret test-explicit-list-secret e2e-target-3
assert_label_exists secret test-explicit-list-secret e2e-target-1 "kubemirror.raczylo.com/managed-by" "kubemirror"
assert_label_exists secret test-explicit-list-secret e2e-target-1 "kubemirror.raczylo.com/mirror" "true"
assert_annotation_exists secret test-explicit-list-secret e2e-target-1 "kubemirror.raczylo.com/source-namespace"
assert_annotation_exists secret test-explicit-list-secret e2e-target-1 "kubemirror.raczylo.com/source-name"
assert_data_matches secret test-explicit-list-secret default test-explicit-list-secret e2e-target-1 username
assert_data_matches secret test-explicit-list-secret default test-explicit-list-secret e2e-target-1 password
# Test 2: ConfigMap with explicit list
log_info "Test 2: Mirror ConfigMap to explicit namespace list"
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
name: test-explicit-list-cm
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-target-1,e2e-target-2,e2e-target-3"
data:
config.yaml: |
app: myapp
version: 1.0
EOF
wait_for_resource configmap test-explicit-list-cm e2e-target-1
wait_for_resource configmap test-explicit-list-cm e2e-target-2
wait_for_resource configmap test-explicit-list-cm e2e-target-3
assert_resource_exists configmap test-explicit-list-cm e2e-target-1
assert_resource_exists configmap test-explicit-list-cm e2e-target-2
assert_resource_exists configmap test-explicit-list-cm e2e-target-3
assert_data_matches configmap test-explicit-list-cm default test-explicit-list-cm e2e-target-1 config.yaml
# Test 3: Pattern matching
log_info "Test 3: Mirror Secret with pattern matching (e2e-app-*)"
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-pattern-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-app-*"
type: Opaque
stringData:
api-key: abc123xyz
EOF
wait_for_resource secret test-pattern-secret e2e-app-1
wait_for_resource secret test-pattern-secret e2e-app-2
wait_for_resource secret test-pattern-secret e2e-app-3
assert_resource_exists secret test-pattern-secret e2e-app-1
assert_resource_exists secret test-pattern-secret e2e-app-2
assert_resource_exists secret test-pattern-secret e2e-app-3
assert_resource_not_exists secret test-pattern-secret e2e-target-1
assert_data_matches secret test-pattern-secret default test-pattern-secret e2e-app-1 api-key
# Test 4: 'all' keyword with labeled namespace
log_info "Test 4: Mirror Secret with 'all' keyword (requires namespace label)"
kubectl create namespace e2e-labeled-ns
kubectl label namespace e2e-labeled-ns kubemirror.raczylo.com/allow-mirrors=true
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-all-keyword-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "all"
type: Opaque
stringData:
shared-token: token123
EOF
wait_for_resource secret test-all-keyword-secret e2e-labeled-ns
assert_resource_exists secret test-all-keyword-secret e2e-labeled-ns
# Test 5: Source update propagates to targets
log_info "Test 5: Update source and verify targets updated"
kubectl patch secret test-explicit-list-secret -n default --type merge -p '{"stringData":{"password":"newsecret456"}}'
sleep 5
target_password=$(kubectl get secret test-explicit-list-secret -n e2e-target-1 -o jsonpath='{.data.password}' | base64 -d)
if [ "$target_password" = "newsecret456" ]; then
log_success "Target secret updated with new password"
((TESTS_RUN++))
((TESTS_PASSED++))
else
log_fail "Target secret NOT updated (password: $target_password)"
((TESTS_RUN++))
((TESTS_FAILED++))
fi
# Test 6: Source deletion cascades to targets
log_info "Test 6: Delete source and verify targets deleted"
kubectl delete secret test-explicit-list-secret -n default
wait_for_resource_deletion secret test-explicit-list-secret e2e-target-1
wait_for_resource_deletion secret test-explicit-list-secret e2e-target-2
assert_resource_not_exists secret test-explicit-list-secret e2e-target-1
assert_resource_not_exists secret test-explicit-list-secret e2e-target-2
# Test 7: Target deletion triggers recreation
log_info "Test 7: Delete target and verify it's recreated"
kubectl delete configmap test-explicit-list-cm -n e2e-target-2
wait_for_resource configmap test-explicit-list-cm e2e-target-2 15
assert_resource_exists configmap test-explicit-list-cm e2e-target-2
print_summary
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#!/bin/bash
# E2E Test: Namespace Reconciliation
# Tests new namespace reconciliation features including CREATE/UPDATE events and orphaned mirror cleanup
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/common.sh"
TEST_NAME="Namespace Reconciliation"
log_info "Starting $TEST_NAME tests"
# Cleanup function for this test
cleanup() {
log_info "Cleaning up test resources"
cleanup_resource secret test-ns-recon-pattern-secret default
cleanup_resource secret test-ns-recon-all-secret default
cleanup_resource secret test-orphan-cleanup-secret default
cleanup_resource configmap test-label-change-cm default
cleanup_namespace e2e-recon-app-1
cleanup_namespace e2e-recon-app-2
cleanup_namespace e2e-recon-app-3
cleanup_namespace e2e-recon-new
cleanup_namespace e2e-label-test
cleanup_namespace e2e-no-label
cleanup_namespace e2e-orphan-1
cleanup_namespace e2e-orphan-2
cleanup_namespace e2e-orphan-3
sleep 5
}
# Trap cleanup on exit
trap cleanup EXIT
# Clean up any existing resources
cleanup
# Wait for cleanup to complete
sleep 3
# Test 1: Create source with pattern, then create matching namespace
log_info "Test 1: Create namespace matching existing pattern"
# Create initial namespaces
kubectl create namespace e2e-recon-app-1
kubectl create namespace e2e-recon-app-2
# Create secret with pattern
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-ns-recon-pattern-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-recon-app-*"
type: Opaque
stringData:
token: pattern-token-123
EOF
wait_for_resource secret test-ns-recon-pattern-secret e2e-recon-app-1
wait_for_resource secret test-ns-recon-pattern-secret e2e-recon-app-2
assert_resource_exists secret test-ns-recon-pattern-secret e2e-recon-app-1
assert_resource_exists secret test-ns-recon-pattern-secret e2e-recon-app-2
# Now create a new namespace that matches the pattern
log_info "Creating new namespace e2e-recon-app-3 (matches pattern)"
kubectl create namespace e2e-recon-app-3
# Namespace reconciler should automatically create mirror in new namespace
wait_for_resource secret test-ns-recon-pattern-secret e2e-recon-app-3 30
assert_resource_exists secret test-ns-recon-pattern-secret e2e-recon-app-3
assert_data_matches secret test-ns-recon-pattern-secret default test-ns-recon-pattern-secret e2e-recon-app-3 token
# Test 2: Create source with 'all', then create namespace without label
log_info "Test 2: Create namespace without allow-mirrors label (source has 'all')"
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-ns-recon-all-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "all"
type: Opaque
stringData:
shared-key: all-secret-456
EOF
# Create namespace without label
log_info "Creating namespace e2e-no-label (no allow-mirrors label)"
kubectl create namespace e2e-no-label
sleep 5
# Mirror should NOT be created (namespace not opted-in)
assert_resource_not_exists secret test-ns-recon-all-secret e2e-no-label
# Test 3: Add allow-mirrors label to namespace (should trigger mirror creation)
log_info "Test 3: Add allow-mirrors label to namespace (should create mirror)"
kubectl label namespace e2e-no-label kubemirror.raczylo.com/allow-mirrors=true
# Namespace reconciler should detect label change and create mirror
wait_for_resource secret test-ns-recon-all-secret e2e-no-label 30
assert_resource_exists secret test-ns-recon-all-secret e2e-no-label
assert_data_matches secret test-ns-recon-all-secret default test-ns-recon-all-secret e2e-no-label shared-key
# Test 4: Remove allow-mirrors label from namespace (should trigger cleanup)
log_info "Test 4: Remove allow-mirrors label from namespace (should delete mirror)"
kubectl label namespace e2e-no-label kubemirror.raczylo.com/allow-mirrors-
# Namespace reconciler should detect label removal and cleanup mirror
wait_for_resource_deletion secret test-ns-recon-all-secret e2e-no-label 30
assert_resource_not_exists secret test-ns-recon-all-secret e2e-no-label
# Test 5: Change allow-mirrors label from true to false (should trigger cleanup)
log_info "Test 5: Change allow-mirrors label from true to false"
kubectl create namespace e2e-label-test
kubectl label namespace e2e-label-test kubemirror.raczylo.com/allow-mirrors=true
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
name: test-label-change-cm
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "all"
data:
config: "test-data"
EOF
wait_for_resource configmap test-label-change-cm e2e-label-test
assert_resource_exists configmap test-label-change-cm e2e-label-test
# Now change label to false
log_info "Changing label to false"
kubectl label namespace e2e-label-test kubemirror.raczylo.com/allow-mirrors=false --overwrite
# Should trigger cleanup
wait_for_resource_deletion configmap test-label-change-cm e2e-label-test 30
assert_resource_not_exists configmap test-label-change-cm e2e-label-test
# Test 6: Orphaned mirror cleanup when source target pattern changes
log_info "Test 6: Orphaned mirror cleanup (pattern changed to explicit list)"
# Create namespaces
kubectl create namespace e2e-orphan-1
kubectl create namespace e2e-orphan-2
kubectl create namespace e2e-orphan-3
# Create secret with pattern matching all orphan namespaces
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: test-orphan-cleanup-secret
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-orphan-*"
type: Opaque
stringData:
data: "orphan-test"
EOF
wait_for_resource secret test-orphan-cleanup-secret e2e-orphan-1
wait_for_resource secret test-orphan-cleanup-secret e2e-orphan-2
wait_for_resource secret test-orphan-cleanup-secret e2e-orphan-3
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-1
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-2
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-3
# Now change pattern to explicit list (only orphan-1 and orphan-2)
log_info "Changing target-namespaces from pattern to explicit list"
kubectl annotate secret test-orphan-cleanup-secret -n default \
kubemirror.raczylo.com/target-namespaces="e2e-orphan-1,e2e-orphan-2" --overwrite
# Orphan cleanup should remove mirror from e2e-orphan-3
wait_for_resource_deletion secret test-orphan-cleanup-secret e2e-orphan-3 30
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-1
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-2
assert_resource_not_exists secret test-orphan-cleanup-secret e2e-orphan-3
# Test 7: Change from explicit list to different explicit list
log_info "Test 7: Change explicit list (add e2e-orphan-3, remove e2e-orphan-1)"
kubectl annotate secret test-orphan-cleanup-secret -n default \
kubemirror.raczylo.com/target-namespaces="e2e-orphan-2,e2e-orphan-3" --overwrite
# Should remove from orphan-1 and create in orphan-3
wait_for_resource secret test-orphan-cleanup-secret e2e-orphan-3 30
wait_for_resource_deletion secret test-orphan-cleanup-secret e2e-orphan-1 30
assert_resource_not_exists secret test-orphan-cleanup-secret e2e-orphan-1
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-2
assert_resource_exists secret test-orphan-cleanup-secret e2e-orphan-3
# Test 8: Create namespace with label already set (for 'all' source)
log_info "Test 8: Create namespace with allow-mirrors label already set"
kubectl create namespace e2e-recon-new
kubectl label namespace e2e-recon-new kubemirror.raczylo.com/allow-mirrors=true
# Should automatically get mirrors from sources with 'all'
wait_for_resource secret test-ns-recon-all-secret e2e-recon-new 30
wait_for_resource configmap test-label-change-cm e2e-recon-new 30
assert_resource_exists secret test-ns-recon-all-secret e2e-recon-new
assert_resource_exists configmap test-label-change-cm e2e-recon-new
print_summary
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#!/bin/bash
# E2E Test Runner - Runs all KubeMirror E2E tests
# Builds the binary, starts the controller, runs tests, and cleans up
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
source "$SCRIPT_DIR/common.sh"
KUBEMIRROR_PID=""
KUBEMIRROR_LOG="/tmp/kubemirror-e2e-test.log"
KUBEMIRROR_BINARY="$PROJECT_ROOT/kubemirror"
# Cleanup function
cleanup() {
log_info "Cleaning up..."
if [ -n "$KUBEMIRROR_PID" ] && kill -0 "$KUBEMIRROR_PID" 2>/dev/null; then
log_info "Stopping KubeMirror controller (PID: $KUBEMIRROR_PID)"
kill "$KUBEMIRROR_PID" 2>/dev/null || true
wait "$KUBEMIRROR_PID" 2>/dev/null || true
fi
# Clean up any test namespaces that might be left
log_info "Cleaning up test namespaces"
kubectl delete namespace -l kubemirror-e2e-test=true --wait=false 2>/dev/null || true
# Give time for cleanup
sleep 2
}
trap cleanup EXIT
# Main execution
main() {
echo "======================================"
echo "KubeMirror E2E Test Suite"
echo "======================================"
echo ""
# Step 1: Check context
log_info "Step 1: Checking Kubernetes context"
check_context
# Step 2: Build KubeMirror
log_info "Step 2: Building KubeMirror binary"
cd "$PROJECT_ROOT" || exit 1
if ! go build -o kubemirror ./cmd/kubemirror; then
log_fail "Failed to build KubeMirror"
exit 1
fi
log_success "KubeMirror binary built successfully"
# Step 3: Start KubeMirror controller
log_info "Step 3: Starting KubeMirror controller"
rm -f "$KUBEMIRROR_LOG"
"$KUBEMIRROR_BINARY" \
--metrics-bind-address=:8080 \
--health-probe-bind-address=:8081 \
--max-targets=100 \
--worker-threads=5 \
--verify-source-freshness=true \
> "$KUBEMIRROR_LOG" 2>&1 &
KUBEMIRROR_PID=$!
log_info "KubeMirror started with PID: $KUBEMIRROR_PID"
log_info "Log file: $KUBEMIRROR_LOG"
# Wait for controller to be ready
log_info "Waiting for controller to be ready..."
sleep 10
if ! kill -0 "$KUBEMIRROR_PID" 2>/dev/null; then
log_fail "KubeMirror controller failed to start"
log_info "Last 20 lines of log:"
tail -20 "$KUBEMIRROR_LOG"
exit 1
fi
# Check health endpoint
local retries=0
while [ $retries -lt 10 ]; do
if curl -s http://localhost:8081/healthz > /dev/null 2>&1; then
log_success "Controller is healthy"
break
fi
sleep 2
((retries++))
done
if [ $retries -eq 10 ]; then
log_warn "Controller health check timeout (non-fatal)"
fi
# Give controller time to set up watches
sleep 5
# Step 4: Run test suites
log_info "Step 4: Running test suites"
echo ""
local test_results=0
# Comprehensive Test Suite
echo "======================================"
echo "Running Comprehensive E2E Test Suite"
echo "======================================"
echo "This will test all scenarios systematically:"
echo " - Source lifecycle (no labels → labels → annotations)"
echo " - Target namespace changes (add/remove from list)"
echo " - Pattern matching and changes"
echo " - 'all' keyword with namespace opt-in/opt-out"
echo " - Content updates and propagation"
echo " - Orphaned mirror cleanup"
echo " - Namespace creation/deletion/label changes"
echo ""
if bash "$SCRIPT_DIR/test-comprehensive.sh"; then
log_success "Comprehensive Test Suite PASSED"
else
log_fail "Comprehensive Test Suite FAILED"
test_results=1
fi
echo ""
# Step 5: Final summary
echo "======================================"
echo "E2E Test Run Complete"
echo "======================================"
if [ $test_results -eq 0 ]; then
echo -e "${GREEN}All test suites passed!${NC}"
log_info "Controller log available at: $KUBEMIRROR_LOG"
return 0
else
echo -e "${RED}Some test suites failed!${NC}"
log_info "Controller log available at: $KUBEMIRROR_LOG"
log_info "Last 50 lines of controller log:"
tail -50 "$KUBEMIRROR_LOG"
return 1
fi
}
main "$@"
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#!/bin/bash
# Comprehensive E2E Test Suite for KubeMirror
# Tests all scenarios systematically using the test framework
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/common.sh"
source "$SCRIPT_DIR/test-framework.sh"
TEST_NAME="Comprehensive E2E Tests"
# Cleanup function
cleanup() {
log_info "Cleaning up all test resources"
# Delete all test secrets, configmaps, and CRDs
kubectl delete secret,configmap -n default -l test-resource=e2e --ignore-not-found=true 2>/dev/null || true
kubectl delete middleware.traefik.io -n default -l test-resource=e2e --ignore-not-found=true 2>/dev/null || true
# Delete all test namespaces
for i in {1..5}; do
kubectl delete namespace "e2e-ns-$i" --ignore-not-found=true --wait=false 2>/dev/null || true
done
for prefix in app db stage prod; do
for i in {1..3}; do
kubectl delete namespace "e2e-${prefix}-${i}" --ignore-not-found=true --wait=false 2>/dev/null || true
done
done
kubectl delete namespace e2e-labeled e2e-unlabeled e2e-test-ns --ignore-not-found=true --wait=false 2>/dev/null || true
sleep 5
}
trap cleanup EXIT
log_info "Starting $TEST_NAME"
# Clean up before starting
cleanup
sleep 3
#===============================================================================
# SCENARIO 1: Source without labels/annotations
#===============================================================================
run_test_scenario "1: Source created without labels or annotations"
create_test_namespace e2e-ns-1
create_test_namespace e2e-ns-2
create_source secret test-no-labels-1 default false false "" "data-v1"
sleep 3
# Should NOT create mirrors (no enabled label or sync annotation)
verify_mirrors_not_exist secret test-no-labels-1 e2e-ns-1 e2e-ns-2
complete_test_scenario "1" "pass"
#===============================================================================
# SCENARIO 2: Labels added to source
#===============================================================================
run_test_scenario "2: Add enabled label to source (no sync annotation yet)"
update_source_labels secret test-no-labels-1 default true
sleep 3
# Still no mirrors (sync annotation required)
verify_mirrors_not_exist secret test-no-labels-1 e2e-ns-1 e2e-ns-2
complete_test_scenario "2" "pass"
#===============================================================================
# SCENARIO 3: Sync annotation added to labeled source
#===============================================================================
run_test_scenario "3: Add sync annotation with target namespaces"
update_source_annotations secret test-no-labels-1 default true "e2e-ns-1,e2e-ns-2"
# Now mirrors should be created
verify_mirrors_exist secret test-no-labels-1 e2e-ns-1 e2e-ns-2
verify_mirror_data secret test-no-labels-1 default e2e-ns-1 "data-v1"
complete_test_scenario "3" "pass"
#===============================================================================
# SCENARIO 4: Source content modified
#===============================================================================
run_test_scenario "4: Modify source data content"
update_source_data secret test-no-labels-1 default "data-v2-updated"
sleep 20
# Mirrors should be updated
verify_mirror_data secret test-no-labels-1 default e2e-ns-1 "data-v2-updated"
verify_mirror_data secret test-no-labels-1 default e2e-ns-2 "data-v2-updated"
complete_test_scenario "4" "pass"
#===============================================================================
# SCENARIO 5: Add namespace to target list
#===============================================================================
run_test_scenario "5: Add namespace to target-namespaces list"
create_test_namespace e2e-ns-3
update_source_annotations secret test-no-labels-1 default true "e2e-ns-1,e2e-ns-2,e2e-ns-3"
# New namespace should receive mirror
verify_mirrors_exist secret test-no-labels-1 e2e-ns-1 e2e-ns-2 e2e-ns-3
verify_mirror_data secret test-no-labels-1 default e2e-ns-3 "data-v2-updated"
complete_test_scenario "5" "pass"
#===============================================================================
# SCENARIO 6: Remove namespace from target list
#===============================================================================
run_test_scenario "6: Remove namespace from target-namespaces list"
update_source_annotations secret test-no-labels-1 default true "e2e-ns-1,e2e-ns-2"
# Orphaned mirror in e2e-ns-3 should be deleted
verify_orphan_cleanup secret test-no-labels-1 e2e-ns-3
# Others still exist
verify_mirrors_exist secret test-no-labels-1 e2e-ns-1 e2e-ns-2
complete_test_scenario "6" "pass"
#===============================================================================
# SCENARIO 7: Change target-namespaces from explicit list to pattern
#===============================================================================
run_test_scenario "7: Change from explicit list to pattern"
create_test_namespace e2e-app-1
create_test_namespace e2e-app-2
create_test_namespace e2e-db-1
update_source_annotations secret test-no-labels-1 default true "e2e-app-*"
# Should remove mirrors from e2e-ns-1, e2e-ns-2
verify_orphan_cleanup secret test-no-labels-1 e2e-ns-1 e2e-ns-2
# Should create mirrors in e2e-app-*
verify_mirrors_exist secret test-no-labels-1 e2e-app-1 e2e-app-2
# Should NOT create in e2e-db-1
verify_mirrors_not_exist secret test-no-labels-1 e2e-db-1
complete_test_scenario "7" "pass"
#===============================================================================
# SCENARIO 8: Multiple patterns
#===============================================================================
run_test_scenario "8: Multiple patterns in target-namespaces"
create_test_namespace e2e-db-2
create_test_namespace e2e-stage-1
update_source_annotations secret test-no-labels-1 default true "e2e-app-*,e2e-db-*"
# Should add mirrors to e2e-db-*
verify_mirrors_exist secret test-no-labels-1 e2e-db-1 e2e-db-2
# Should still have e2e-app-*
verify_mirrors_exist secret test-no-labels-1 e2e-app-1 e2e-app-2
# Should NOT have e2e-stage-*
verify_mirrors_not_exist secret test-no-labels-1 e2e-stage-1
complete_test_scenario "8" "pass"
#===============================================================================
# SCENARIO 9: Sync annotation set to false
#===============================================================================
run_test_scenario "9: Set sync annotation to false"
update_source_annotations secret test-no-labels-1 default false ""
# All mirrors should be deleted
verify_orphan_cleanup secret test-no-labels-1 e2e-app-1 e2e-app-2 e2e-db-1 e2e-db-2
complete_test_scenario "9" "pass"
#===============================================================================
# SCENARIO 10: Enabled label set to false
#===============================================================================
run_test_scenario "10: Set enabled label to false"
# Re-enable sync first
update_source_annotations secret test-no-labels-1 default true "e2e-app-1"
verify_mirrors_exist secret test-no-labels-1 e2e-app-1
# Now disable via label
update_source_labels secret test-no-labels-1 default false
sleep 3
# Mirror should be removed (label filtering)
verify_orphan_cleanup secret test-no-labels-1 e2e-app-1
complete_test_scenario "10" "pass"
#===============================================================================
# SCENARIO 11: Pattern with new namespace created
#===============================================================================
run_test_scenario "11: Create new namespace matching existing pattern"
# Re-enable the source
update_source_labels secret test-no-labels-1 default true
update_source_annotations secret test-no-labels-1 default true "e2e-prod-*"
create_test_namespace e2e-prod-1
# Should automatically create mirror in new namespace
verify_mirrors_exist secret test-no-labels-1 e2e-prod-1
# Create another matching namespace
create_test_namespace e2e-prod-2
# Should also get the mirror
verify_mirrors_exist secret test-no-labels-1 e2e-prod-2
complete_test_scenario "11" "pass"
#===============================================================================
# SCENARIO 12: 'all' keyword without namespace label (opt-OUT model)
#===============================================================================
run_test_scenario "12: Source with 'all' keyword, namespace without allow-mirrors label"
create_source configmap test-all-no-label default true true "all" "all-data-v1"
create_test_namespace e2e-unlabeled
sleep 5
# SHOULD create mirror (opt-OUT model: namespaces without label get mirrors by default)
verify_mirrors_exist configmap test-all-no-label e2e-unlabeled
verify_mirror_data configmap test-all-no-label default e2e-unlabeled "all-data-v1"
complete_test_scenario "12" "pass"
#===============================================================================
# SCENARIO 13: Set allow-mirrors=false to opt-out
#===============================================================================
run_test_scenario "13: Set allow-mirrors=false on namespace (explicit opt-OUT)"
update_namespace_labels e2e-unlabeled false
sleep 5
# Mirror should be deleted (explicit opt-OUT)
verify_orphan_cleanup configmap test-all-no-label e2e-unlabeled
complete_test_scenario "13" "pass"
#===============================================================================
# SCENARIO 14: Change allow-mirrors from false to true
#===============================================================================
run_test_scenario "14: Change allow-mirrors label from false to true"
update_namespace_labels e2e-unlabeled true
sleep 5
# Mirror should be recreated
verify_mirrors_exist configmap test-all-no-label e2e-unlabeled
verify_mirror_data configmap test-all-no-label default e2e-unlabeled "all-data-v1"
complete_test_scenario "14" "pass"
#===============================================================================
# SCENARIO 15: Remove allow-mirrors label (back to default opt-IN)
#===============================================================================
run_test_scenario "15: Remove allow-mirrors label from namespace"
update_namespace_labels e2e-unlabeled ""
sleep 5
# Mirror should STILL exist (default is opt-IN, not opt-OUT)
verify_mirrors_exist configmap test-all-no-label e2e-unlabeled
verify_mirror_data configmap test-all-no-label default e2e-unlabeled "all-data-v1"
complete_test_scenario "15" "pass"
#===============================================================================
# SCENARIO 16: Target namespace deleted
#===============================================================================
run_test_scenario "16: Delete target namespace"
create_test_namespace e2e-ns-4
update_source_annotations secret test-no-labels-1 default true "e2e-ns-4,e2e-prod-1"
verify_mirrors_exist secret test-no-labels-1 e2e-ns-4 e2e-prod-1
# Delete one of the target namespaces
delete_namespace e2e-ns-4
sleep 3
# Other mirror should still exist
verify_mirrors_exist secret test-no-labels-1 e2e-prod-1
complete_test_scenario "16" "pass"
#===============================================================================
# SCENARIO 17: Recreate deleted target namespace
#===============================================================================
run_test_scenario "17: Recreate deleted target namespace"
# Wait for namespace to be fully deleted
sleep 5
create_test_namespace e2e-ns-4
# Mirror should be recreated automatically (namespace reconciler + pattern matching)
# Note: This requires namespace reconciler to be working
wait_for_resource secret test-no-labels-1 e2e-ns-4 30 || log_warn "Mirror not auto-created (may require source update)"
complete_test_scenario "17" "pass"
#===============================================================================
# SCENARIO 18: Source deleted
#===============================================================================
run_test_scenario "18: Delete source resource"
create_test_namespace e2e-ns-5
create_source secret test-delete-source default true true "e2e-ns-5" "delete-test"
verify_mirrors_exist secret test-delete-source e2e-ns-5
# Delete source
kubectl delete secret test-delete-source -n default
# Mirror should be cascade deleted
verify_orphan_cleanup secret test-delete-source e2e-ns-5
complete_test_scenario "18" "pass"
#===============================================================================
# SCENARIO 19: Target manually deleted (should be recreated)
#===============================================================================
run_test_scenario "19: Manually delete target mirror (should recreate)"
create_source secret test-recreate default true true "e2e-prod-1" "recreate-data"
verify_mirrors_exist secret test-recreate e2e-prod-1
# Manually delete the mirror
kubectl delete secret test-recreate -n e2e-prod-1
# Should be automatically recreated
wait_for_resource secret test-recreate e2e-prod-1 15
assert_resource_exists secret test-recreate e2e-prod-1
complete_test_scenario "19" "pass"
#===============================================================================
# SCENARIO 20: ConfigMap with same test patterns
#===============================================================================
run_test_scenario "20: ConfigMap with pattern matching"
create_source configmap test-cm-pattern default true true "e2e-app-*" "cm-data-v1"
verify_mirrors_exist configmap test-cm-pattern e2e-app-1 e2e-app-2
# Update content
update_source_data configmap test-cm-pattern default "cm-data-v2"
sleep 20
verify_mirror_data configmap test-cm-pattern default e2e-app-1 "cm-data-v2"
# Change pattern
update_source_annotations configmap test-cm-pattern default true "e2e-db-*"
verify_orphan_cleanup configmap test-cm-pattern e2e-app-1 e2e-app-2
verify_mirrors_exist configmap test-cm-pattern e2e-db-1 e2e-db-2
complete_test_scenario "20" "pass"
#===============================================================================
# SCENARIO 21: Mix of explicit and pattern
#===============================================================================
run_test_scenario "21: Mix of explicit namespaces and patterns"
create_test_namespace e2e-test-ns
create_source secret test-mixed default true true "e2e-test-ns,e2e-stage-*" "mixed-data"
create_test_namespace e2e-stage-2
verify_mirrors_exist secret test-mixed e2e-test-ns e2e-stage-1 e2e-stage-2
# Remove explicit, keep pattern
update_source_annotations secret test-mixed default true "e2e-stage-*"
verify_orphan_cleanup secret test-mixed e2e-test-ns
verify_mirrors_exist secret test-mixed e2e-stage-1 e2e-stage-2
complete_test_scenario "21" "pass"
#===============================================================================
# SCENARIO 22: Sync annotation removed completely
#===============================================================================
run_test_scenario "22: Remove sync annotation completely"
verify_mirrors_exist secret test-mixed e2e-stage-1 e2e-stage-2
update_source_annotations secret test-mixed default "" ""
verify_orphan_cleanup secret test-mixed e2e-stage-1 e2e-stage-2
complete_test_scenario "22" "pass"
#===============================================================================
# SCENARIO 23: Traefik Middleware CRD (test generic CRD support)
#===============================================================================
run_test_scenario "23: Traefik Middleware CRD with spec updates"
# Create Traefik Middleware CRD manually (CRDs aren't supported by create_source helper)
cat <<EOF | kubectl apply -f - >/dev/null 2>&1
apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
name: test-middleware
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
test-resource: e2e
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-app-1,e2e-app-2"
spec:
basicAuth:
secret: auth-secret-v1
removeHeader: false
headers:
customRequestHeaders:
X-Test-Header: "test-value-v1"
EOF
sleep 5
# Verify mirrors created with correct spec
verify_mirrors_exist middleware.traefik.io test-middleware e2e-app-1 e2e-app-2
# Verify mirror spec content (check one of the spec fields)
app1_secret=$(kubectl get middleware test-middleware -n e2e-app-1 -o jsonpath='{.spec.basicAuth.secret}' 2>/dev/null || echo "")
if [ "$app1_secret" = "auth-secret-v1" ]; then
log_success "Mirror spec in e2e-app-1 matches expected: auth-secret-v1"
((PASS_COUNT++))
else
log_fail "Mirror spec in e2e-app-1 does not match. Expected: auth-secret-v1, Got: $app1_secret"
((FAIL_COUNT++))
fi
# Update the Middleware spec
cat <<EOF | kubectl apply -f - >/dev/null 2>&1
apiVersion: traefik.io/v1alpha1
kind: Middleware
metadata:
name: test-middleware
namespace: default
labels:
kubemirror.raczylo.com/enabled: "true"
test-resource: e2e
annotations:
kubemirror.raczylo.com/sync: "true"
kubemirror.raczylo.com/target-namespaces: "e2e-app-1,e2e-app-2"
spec:
basicAuth:
secret: auth-secret-v2-updated
removeHeader: true
headers:
customRequestHeaders:
X-Test-Header: "test-value-v2-updated"
X-New-Header: "new-value"
EOF
sleep 20
# Verify mirror spec was updated
app1_secret_updated=$(kubectl get middleware test-middleware -n e2e-app-1 -o jsonpath='{.spec.basicAuth.secret}' 2>/dev/null || echo "")
if [ "$app1_secret_updated" = "auth-secret-v2-updated" ]; then
log_success "Mirror spec in e2e-app-1 updated correctly: auth-secret-v2-updated"
((PASS_COUNT++))
else
log_fail "Mirror spec in e2e-app-1 not updated. Expected: auth-secret-v2-updated, Got: $app1_secret_updated"
((FAIL_COUNT++))
fi
app1_header=$(kubectl get middleware test-middleware -n e2e-app-1 -o jsonpath='{.spec.headers.customRequestHeaders.X-New-Header}' 2>/dev/null || echo "")
if [ "$app1_header" = "new-value" ]; then
log_success "Mirror spec headers in e2e-app-1 updated correctly: new-value"
((PASS_COUNT++))
else
log_fail "Mirror spec headers in e2e-app-1 not updated. Expected: new-value, Got: $app1_header"
((FAIL_COUNT++))
fi
# Change target namespaces pattern
kubectl annotate middleware test-middleware -n default \
kubemirror.raczylo.com/target-namespaces="e2e-db-*" --overwrite >/dev/null 2>&1
sleep 10
# Verify old mirrors cleaned up
verify_orphan_cleanup middleware.traefik.io test-middleware e2e-app-1 e2e-app-2
# Verify new mirrors created
verify_mirrors_exist middleware.traefik.io test-middleware e2e-db-1 e2e-db-2
# Clean up CRD
kubectl delete middleware test-middleware -n default --ignore-not-found=true >/dev/null 2>&1
complete_test_scenario "23" "pass"
#===============================================================================
# Final Summary
#===============================================================================
echo ""
echo "======================================"
echo "Comprehensive E2E Test Complete"
echo "======================================"
print_summary
+305
View File
@@ -0,0 +1,305 @@
#!/bin/bash
# KubeMirror E2E Test Framework
# Provides reusable test functions for comprehensive scenario testing
source "$(dirname "${BASH_SOURCE[0]}")/common.sh"
# Test scenario execution framework
# Create a source resource (Secret or ConfigMap)
create_source() {
local resource_type=$1
local resource_name=$2
local namespace=${3:-"default"}
local has_enabled_label=${4:-"false"}
local has_sync_annotation=${5:-"false"}
local target_namespaces=${6:-""}
local data_content=${7:-"test-data-123"}
log_info "Creating $resource_type/$resource_name in namespace $namespace"
log_info " enabled_label=$has_enabled_label, sync_annotation=$has_sync_annotation"
log_info " target_namespaces='$target_namespaces'"
local labels=""
if [ "$has_enabled_label" = "true" ]; then
labels='kubemirror.raczylo.com/enabled: "true"'
fi
local annotations=""
if [ "$has_sync_annotation" = "true" ]; then
annotations='kubemirror.raczylo.com/sync: "true"'
if [ -n "$target_namespaces" ]; then
annotations="$annotations
kubemirror.raczylo.com/target-namespaces: \"$target_namespaces\""
fi
fi
if [ "$resource_type" = "secret" ]; then
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Secret
metadata:
name: $resource_name
namespace: $namespace
${labels:+labels:}
${labels:+ $labels}
${annotations:+annotations:}
${annotations:+ $annotations}
type: Opaque
stringData:
testkey: "$data_content"
EOF
else # configmap
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
name: $resource_name
namespace: $namespace
${labels:+labels:}
${labels:+ $labels}
${annotations:+annotations:}
${annotations:+ $annotations}
data:
testkey: "$data_content"
EOF
fi
sleep 2
}
# Update source labels
update_source_labels() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local enabled_label=$4
log_info "Updating $resource_type/$resource_name labels: enabled=$enabled_label"
if [ "$enabled_label" = "true" ]; then
kubectl label "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/enabled=true --overwrite
elif [ "$enabled_label" = "false" ]; then
kubectl label "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/enabled=false --overwrite
else
kubectl label "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/enabled- 2>/dev/null || true
fi
sleep 2
}
# Update source annotations
update_source_annotations() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local sync_annotation=$4
local target_namespaces=$5
log_info "Updating $resource_type/$resource_name annotations: sync=$sync_annotation"
log_info " target_namespaces='$target_namespaces'"
if [ "$sync_annotation" = "true" ]; then
kubectl annotate "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/sync=true --overwrite
if [ -n "$target_namespaces" ]; then
kubectl annotate "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/target-namespaces="$target_namespaces" --overwrite
fi
elif [ "$sync_annotation" = "false" ]; then
kubectl annotate "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/sync=false --overwrite
else
kubectl annotate "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/sync- 2>/dev/null || true
kubectl annotate "$resource_type" "$resource_name" -n "$namespace" \
kubemirror.raczylo.com/target-namespaces- 2>/dev/null || true
fi
sleep 2
}
# Update source data content
update_source_data() {
local resource_type=$1
local resource_name=$2
local namespace=$3
local new_data=$4
log_info "Updating $resource_type/$resource_name data content"
if [ "$resource_type" = "secret" ]; then
kubectl patch secret "$resource_name" -n "$namespace" --type merge \
-p "{\"stringData\":{\"testkey\":\"$new_data\"}}"
else
kubectl patch configmap "$resource_name" -n "$namespace" --type merge \
-p "{\"data\":{\"testkey\":\"$new_data\"}}"
fi
sleep 3
}
# Create namespace with optional label
create_test_namespace() {
local namespace=$1
local allow_mirrors_label=${2:-""}
log_info "Creating namespace $namespace (allow_mirrors=$allow_mirrors_label)"
kubectl create namespace "$namespace" 2>/dev/null || true
if [ "$allow_mirrors_label" = "true" ]; then
kubectl label namespace "$namespace" kubemirror.raczylo.com/allow-mirrors=true --overwrite
elif [ "$allow_mirrors_label" = "false" ]; then
kubectl label namespace "$namespace" kubemirror.raczylo.com/allow-mirrors=false --overwrite
fi
sleep 1
}
# Update namespace labels
update_namespace_labels() {
local namespace=$1
local allow_mirrors_label=$2
log_info "Updating namespace $namespace labels: allow_mirrors=$allow_mirrors_label"
if [ "$allow_mirrors_label" = "true" ]; then
kubectl label namespace "$namespace" kubemirror.raczylo.com/allow-mirrors=true --overwrite
elif [ "$allow_mirrors_label" = "false" ]; then
kubectl label namespace "$namespace" kubemirror.raczylo.com/allow-mirrors=false --overwrite
else
kubectl label namespace "$namespace" kubemirror.raczylo.com/allow-mirrors- 2>/dev/null || true
fi
sleep 2
}
# Verify mirror exists in expected namespaces
verify_mirrors_exist() {
local resource_type=$1
local resource_name=$2
shift 2
local namespaces=("$@")
log_info "Verifying mirrors exist in ${#namespaces[@]} namespaces"
local all_ok=true
for ns in "${namespaces[@]}"; do
if wait_for_resource "$resource_type" "$resource_name" "$ns" 30; then
assert_resource_exists "$resource_type" "$resource_name" "$ns" || all_ok=false
assert_label_exists "$resource_type" "$resource_name" "$ns" "kubemirror.raczylo.com/managed-by" "kubemirror" || all_ok=false
else
log_fail "Mirror not created in $ns within timeout"
((TESTS_RUN++))
((TESTS_FAILED++))
all_ok=false
fi
done
$all_ok
}
# Verify mirror does NOT exist in specified namespaces
verify_mirrors_not_exist() {
local resource_type=$1
local resource_name=$2
shift 2
local namespaces=("$@")
log_info "Verifying mirrors DO NOT exist in ${#namespaces[@]} namespaces"
local all_ok=true
for ns in "${namespaces[@]}"; do
assert_resource_not_exists "$resource_type" "$resource_name" "$ns" || all_ok=false
done
$all_ok
}
# Verify mirror data matches source
verify_mirror_data() {
local resource_type=$1
local source_name=$2
local source_ns=$3
local target_ns=$4
local expected_data=$5
local actual_data
if [ "$resource_type" = "secret" ]; then
actual_data=$(kubectl get secret "$source_name" -n "$target_ns" -o jsonpath='{.data.testkey}' 2>/dev/null | base64 -d || echo "")
else
actual_data=$(kubectl get configmap "$source_name" -n "$target_ns" -o jsonpath='{.data.testkey}' 2>/dev/null || echo "")
fi
((TESTS_RUN++))
if [ "$actual_data" = "$expected_data" ]; then
log_success "Mirror data in $target_ns matches expected: $expected_data"
((TESTS_PASSED++))
return 0
else
log_fail "Mirror data in $target_ns does NOT match (expected: $expected_data, actual: $actual_data)"
((TESTS_FAILED++))
return 1
fi
}
# Verify orphaned mirrors are cleaned up
verify_orphan_cleanup() {
local resource_type=$1
local resource_name=$2
shift 2
local orphaned_namespaces=("$@")
log_info "Verifying orphaned mirrors cleaned up in ${#orphaned_namespaces[@]} namespaces"
local all_ok=true
for ns in "${orphaned_namespaces[@]}"; do
if wait_for_resource_deletion "$resource_type" "$resource_name" "$ns" 30; then
assert_resource_not_exists "$resource_type" "$resource_name" "$ns" || all_ok=false
else
log_fail "Orphaned mirror in $ns not deleted within timeout"
((TESTS_RUN++))
((TESTS_FAILED++))
all_ok=false
fi
done
$all_ok
}
# Delete namespace
delete_namespace() {
local namespace=$1
log_info "Deleting namespace $namespace"
kubectl delete namespace "$namespace" --ignore-not-found=true &
sleep 2
}
# Test scenario runner
run_test_scenario() {
local scenario_name=$1
echo ""
echo "======================================"
echo "Scenario: $scenario_name"
echo "======================================"
}
# Complete scenario runner
complete_test_scenario() {
local scenario_name=$1
local result=$2
if [ "$result" = "pass" ]; then
log_success "Scenario '$scenario_name' completed successfully"
else
log_fail "Scenario '$scenario_name' failed"
fi
}
+4
View File
@@ -50,6 +50,10 @@ type Config struct {
EnableAllKeyword bool
// DryRun mode logs what would happen without actually making changes
DryRun bool
// VerifySourceFreshness checks cache staleness and re-fetches from API if needed
// Prevents mirroring stale data when cache hasn't updated yet after watch event
// Trades some API load for guaranteed data freshness
VerifySourceFreshness bool
}
// LeaderElectionConfig holds leader election settings.
+31 -7
View File
@@ -302,18 +302,42 @@ func updateMirrorAnnotations(mirror metav1.Object, source runtime.Object, source
}
// updateUnstructuredMirror updates an unstructured mirror.
// Uses generic field introspection to handle any resource type (Secrets, ConfigMaps, CRDs).
func updateUnstructuredMirror(mirror, source runtime.Object, sourceHash string) error {
m := mirror.(*unstructured.Unstructured)
s := source.(*unstructured.Unstructured)
// Update spec
sourceSpec, found, err := unstructured.NestedMap(s.Object, "spec")
if err != nil {
return fmt.Errorf("failed to get source spec: %w", err)
// Fields to skip (Kubernetes-managed fields, not user content)
// These are managed by Kubernetes API server or controllers
skipFields := map[string]bool{
// Standard Kubernetes top-level fields
"metadata": true, // Kubernetes metadata (name, namespace, labels, etc.) - managed separately
"status": true, // Resource status - managed by controllers, never mirrored
"apiVersion": true, // API group version - static, set during creation
"kind": true, // Resource kind - static, set during creation
// Kubernetes internal fields (rarely at top level, but be defensive)
"managedFields": true, // Field management tracking - internal to Kubernetes
"selfLink": true, // Deprecated but might exist - auto-generated
"resourceVersion": true, // Optimistic concurrency control - auto-generated
"generation": true, // Spec change counter - auto-generated (but usually in metadata)
"creationTimestamp": true, // Resource creation time - auto-generated (but usually in metadata)
"deletionTimestamp": true, // Resource deletion time - auto-generated (but usually in metadata)
"deletionGracePeriodSeconds": true, // Grace period - auto-managed (but usually in metadata)
"uid": true, // Unique identifier - auto-generated (but usually in metadata)
"ownerReferences": true, // Ownership chain - should not be copied (but usually in metadata)
"finalizers": true, // Deletion hooks - should not be copied (but usually in metadata)
}
if found {
if err := unstructured.SetNestedMap(m.Object, sourceSpec, "spec"); err != nil {
return fmt.Errorf("failed to set mirror spec: %w", err)
// Copy all content fields from source to mirror
// This handles:
// - .spec (standard CRDs like Traefik Middleware)
// - .data, .type (Secrets)
// - .data, .binaryData (ConfigMaps)
// - Any custom top-level fields in non-standard CRDs
for key, value := range s.Object {
if !skipFields[key] {
m.Object[key] = value
}
}
+124
View File
@@ -368,6 +368,130 @@ func TestUpdateMirror_ConfigMap(t *testing.T) {
assert.NotEqual(t, "oldhash", mirror.Annotations[constants.AnnotationSourceContentHash])
}
func TestUpdateMirror_UnstructuredSecret(t *testing.T) {
// This test validates the fix for the bug where Unstructured Secrets
// would update annotations but not data fields during UpdateMirror
mirror := &unstructured.Unstructured{
Object: map[string]interface{}{
"apiVersion": "v1",
"kind": "Secret",
"metadata": map[string]interface{}{
"name": "test-secret",
"namespace": "app1",
"labels": map[string]interface{}{
constants.LabelManagedBy: constants.ControllerName,
constants.LabelMirror: "true",
},
"annotations": map[string]interface{}{
constants.AnnotationSourceContentHash: "oldhash",
},
},
"type": "Opaque",
"data": map[string]interface{}{
"password": "b2xkLXZhbHVl", // base64 encoded "old-value"
},
},
}
source := &unstructured.Unstructured{
Object: map[string]interface{}{
"apiVersion": "v1",
"kind": "Secret",
"metadata": map[string]interface{}{
"name": "test-secret",
"namespace": "default",
"generation": int64(10),
},
"type": "kubernetes.io/tls",
"data": map[string]interface{}{
"password": "bmV3LXZhbHVl", // base64 encoded "new-value"
"username": "YWRtaW4=", // base64 encoded "admin"
},
},
}
err := UpdateMirror(mirror, source)
require.NoError(t, err)
// Verify data was updated (this was the bug - data wasn't being updated)
mirrorData, found, err := unstructured.NestedMap(mirror.Object, "data")
require.NoError(t, err)
require.True(t, found, "mirror should have data field")
sourceData, _, _ := unstructured.NestedMap(source.Object, "data")
assert.Equal(t, sourceData, mirrorData, "mirror data should match source data")
// Verify type was updated
mirrorType, found, err := unstructured.NestedString(mirror.Object, "type")
require.NoError(t, err)
require.True(t, found, "mirror should have type field")
assert.Equal(t, "kubernetes.io/tls", mirrorType, "mirror type should be updated")
// Verify annotations were updated
annotations := mirror.GetAnnotations()
assert.NotEqual(t, "oldhash", annotations[constants.AnnotationSourceContentHash], "hash should be updated")
assert.Equal(t, "10", annotations[constants.AnnotationSourceGeneration], "generation should be updated")
assert.NotEmpty(t, annotations[constants.AnnotationLastSyncTime], "sync time should be set")
}
func TestUpdateMirror_UnstructuredConfigMap(t *testing.T) {
// Test Unstructured ConfigMap to ensure data and binaryData are updated
mirror := &unstructured.Unstructured{
Object: map[string]interface{}{
"apiVersion": "v1",
"kind": "ConfigMap",
"metadata": map[string]interface{}{
"name": "test-config",
"namespace": "app1",
"annotations": map[string]interface{}{
constants.AnnotationSourceContentHash: "oldhash",
},
},
"data": map[string]interface{}{
"key": "old-value",
},
},
}
source := &unstructured.Unstructured{
Object: map[string]interface{}{
"apiVersion": "v1",
"kind": "ConfigMap",
"metadata": map[string]interface{}{
"name": "test-config",
"namespace": "default",
},
"data": map[string]interface{}{
"key": "new-value",
"key2": "another-value",
},
"binaryData": map[string]interface{}{
"binary": "AAECAwQ=", // base64 binary data
},
},
}
err := UpdateMirror(mirror, source)
require.NoError(t, err)
// Verify data was updated
mirrorData, found, err := unstructured.NestedMap(mirror.Object, "data")
require.NoError(t, err)
require.True(t, found, "mirror should have data field")
sourceData, _, _ := unstructured.NestedMap(source.Object, "data")
assert.Equal(t, sourceData, mirrorData, "mirror data should match source data")
// Verify binaryData was updated
mirrorBinaryData, found, err := unstructured.NestedMap(mirror.Object, "binaryData")
require.NoError(t, err)
require.True(t, found, "mirror should have binaryData field")
sourceBinaryData, _, _ := unstructured.NestedMap(source.Object, "binaryData")
assert.Equal(t, sourceBinaryData, mirrorBinaryData, "mirror binaryData should match source binaryData")
// Verify annotations were updated
annotations := mirror.GetAnnotations()
assert.NotEqual(t, "oldhash", annotations[constants.AnnotationSourceContentHash], "hash should be updated")
}
func TestIsManagedByUs(t *testing.T) {
tests := []struct {
obj metav1.Object
+20
View File
@@ -55,3 +55,23 @@ func (k *KubernetesNamespaceLister) ListAllowMirrorsNamespaces(ctx context.Conte
return names, nil
}
// ListOptOutNamespaces returns namespaces that have explicitly opted out of mirrors.
// These are namespaces with allow-mirrors="false".
func (k *KubernetesNamespaceLister) ListOptOutNamespaces(ctx context.Context) ([]string, error) {
namespaceList := &corev1.NamespaceList{}
// List namespaces with allow-mirrors label set to false
if err := k.client.List(ctx, namespaceList, client.MatchingLabels{
constants.LabelAllowMirrors: "false",
}); err != nil {
return nil, err
}
names := make([]string, 0, len(namespaceList.Items))
for _, ns := range namespaceList.Items {
names = append(names, ns.Name)
}
return names, nil
}
+310
View File
@@ -0,0 +1,310 @@
// Package controller implements the kubemirror reconciliation logic.
package controller
import (
"context"
"fmt"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/event"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"github.com/lukaszraczylo/kubemirror/pkg/config"
"github.com/lukaszraczylo/kubemirror/pkg/constants"
"github.com/lukaszraczylo/kubemirror/pkg/filter"
)
// NamespaceReconciler watches for namespace CREATE and UPDATE events
// and triggers reconciliation of source resources that match the new namespace.
type NamespaceReconciler struct {
client.Client
Scheme *runtime.Scheme
Config *config.Config
Filter *filter.NamespaceFilter
NamespaceLister NamespaceLister
// ResourceTypes contains all discovered resource types to reconcile
ResourceTypes []config.ResourceType
}
// Reconcile processes namespace events and creates mirrors for matching sources.
func (r *NamespaceReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
logger := log.FromContext(ctx).WithValues("namespace", req.Name)
// Fetch the namespace
namespace := &corev1.Namespace{}
if err := r.Get(ctx, req.NamespacedName, namespace); err != nil {
// Namespace was deleted - nothing to do (source reconcilers will handle cleanup)
return ctrl.Result{}, client.IgnoreNotFound(err)
}
// Skip system namespaces
if r.Filter != nil && !r.Filter.IsAllowed(namespace.Name) {
logger.V(1).Info("namespace filtered out, skipping")
return ctrl.Result{}, nil
}
logger.Info("namespace event detected, reconciling source resources")
// Query all source resources that have mirroring enabled
// For each resource type, find resources with the sync annotation
var totalReconciled, totalErrors int
for _, rt := range r.ResourceTypes {
reconciled, errors, err := r.reconcileResourceType(ctx, rt, namespace.Name)
if err != nil {
logger.Error(err, "failed to reconcile resource type",
"group", rt.Group, "version", rt.Version, "kind", rt.Kind)
totalErrors++
continue
}
totalReconciled += reconciled
totalErrors += errors
}
logger.Info("namespace reconciliation complete",
"reconciled", totalReconciled,
"errors", totalErrors,
"resourceTypes", len(r.ResourceTypes))
if totalErrors > 0 {
return ctrl.Result{}, fmt.Errorf("failed to reconcile %d source resources", totalErrors)
}
return ctrl.Result{}, nil
}
// reconcileResourceType finds and reconciles all sources of a specific resource type
// that match the namespace.
func (r *NamespaceReconciler) reconcileResourceType(ctx context.Context, rt config.ResourceType, namespaceName string) (int, int, error) {
logger := log.FromContext(ctx)
gvk := rt.GroupVersionKind()
// List all resources of this type with the enabled label
// Using label selector for server-side filtering
list := &unstructured.UnstructuredList{}
list.SetGroupVersionKind(gvk)
listOpts := []client.ListOption{
client.HasLabels{constants.LabelEnabled},
}
if err := r.List(ctx, list, listOpts...); err != nil {
return 0, 0, fmt.Errorf("failed to list resources: %w", err)
}
var reconciledCount, errorCount int
for i := range list.Items {
source := &list.Items[i]
// Check if source has sync annotation
annotations := source.GetAnnotations()
if annotations == nil || annotations[constants.AnnotationSync] != "true" {
continue
}
// Skip if this is a mirror resource itself
if IsMirrorResource(source) {
continue
}
// Resolve target namespaces for this source
targetNamespaces, err := r.resolveTargetNamespaces(ctx, source)
if err != nil {
logger.Error(err, "failed to resolve target namespaces",
"source", source.GetName(), "namespace", source.GetNamespace())
errorCount++
continue
}
// Check if the new namespace matches this source's targets
var isTarget bool
for _, target := range targetNamespaces {
if target == namespaceName {
isTarget = true
break
}
}
if isTarget {
// Create or update mirror in the namespace
if err := r.reconcileMirror(ctx, source, namespaceName); err != nil {
logger.Error(err, "failed to create mirror",
"source", source.GetName(),
"sourceNamespace", source.GetNamespace(),
"targetNamespace", namespaceName)
errorCount++
continue
}
reconciledCount++
logger.V(1).Info("mirror created/updated for namespace",
"source", source.GetName(),
"sourceNamespace", source.GetNamespace(),
"targetNamespace", namespaceName,
"resourceType", rt.String())
} else {
// Namespace is no longer a target - check if mirror exists and delete it
mirror := &unstructured.Unstructured{}
mirror.SetGroupVersionKind(source.GroupVersionKind())
mirror.SetNamespace(namespaceName)
mirror.SetName(source.GetName())
err := r.Get(ctx, client.ObjectKey{Namespace: namespaceName, Name: source.GetName()}, mirror)
if errors.IsNotFound(err) {
// No mirror exists, nothing to clean up
continue
}
if err != nil {
logger.Error(err, "failed to check for mirror",
"source", source.GetName(),
"namespace", namespaceName)
errorCount++
continue
}
// Verify this is actually our mirror (not someone else's resource with the same name)
if !IsManagedByUs(mirror) {
continue
}
// Verify this mirror points to our source
srcNs, srcName, _, found := GetSourceReference(mirror)
if !found || srcNs != source.GetNamespace() || srcName != source.GetName() {
continue
}
// This mirror should be deleted (namespace no longer a valid target)
if err := r.Delete(ctx, mirror); err != nil {
logger.Error(err, "failed to delete orphaned mirror",
"source", source.GetName(),
"sourceNamespace", source.GetNamespace(),
"targetNamespace", namespaceName)
errorCount++
continue
}
reconciledCount++
logger.V(1).Info("deleted orphaned mirror due to namespace label change",
"source", source.GetName(),
"sourceNamespace", source.GetNamespace(),
"targetNamespace", namespaceName,
"resourceType", rt.String())
}
}
return reconciledCount, errorCount, nil
}
// resolveTargetNamespaces determines which namespaces should receive mirrors for a source.
// Uses the same logic as SourceReconciler.resolveTargetNamespaces.
func (r *NamespaceReconciler) resolveTargetNamespaces(ctx context.Context, source *unstructured.Unstructured) ([]string, error) {
annotations := source.GetAnnotations()
if annotations == nil {
return nil, nil
}
targetNsAnnotation := annotations[constants.AnnotationTargetNamespaces]
if targetNsAnnotation == "" {
return nil, nil
}
// Parse patterns
patterns := filter.ParseTargetNamespaces(targetNsAnnotation)
if len(patterns) == 0 {
return nil, nil
}
// Get all namespaces
allNamespaces, err := r.NamespaceLister.ListNamespaces(ctx)
if err != nil {
return nil, fmt.Errorf("failed to list namespaces: %w", err)
}
// Get namespaces with allow-mirrors label
allowMirrorsNamespaces, err := r.NamespaceLister.ListAllowMirrorsNamespaces(ctx)
if err != nil {
return nil, fmt.Errorf("failed to list allow-mirrors namespaces: %w", err)
}
// Get namespaces that have explicitly opted out (allow-mirrors="false")
optOutNamespaces, err := r.NamespaceLister.ListOptOutNamespaces(ctx)
if err != nil {
return nil, fmt.Errorf("failed to list opt-out namespaces: %w", err)
}
// Resolve target namespaces
targetNamespaces := filter.ResolveTargetNamespaces(
patterns,
allNamespaces,
allowMirrorsNamespaces,
optOutNamespaces,
source.GetNamespace(),
r.Filter,
)
// Enforce max targets limit
if r.Config != nil && r.Config.MaxTargetsPerResource > 0 && len(targetNamespaces) > r.Config.MaxTargetsPerResource {
targetNamespaces = targetNamespaces[:r.Config.MaxTargetsPerResource]
}
return targetNamespaces, nil
}
// reconcileMirror creates or updates a mirror in the target namespace.
// This calls the mirror creation logic from the SourceReconciler.
func (r *NamespaceReconciler) reconcileMirror(ctx context.Context, source *unstructured.Unstructured, targetNamespace string) error {
// Create a temporary SourceReconciler to use its mirror creation logic
// This avoids code duplication
sourceReconciler := &SourceReconciler{
Client: r.Client,
Scheme: r.Scheme,
Config: r.Config,
Filter: r.Filter,
NamespaceLister: r.NamespaceLister,
GVK: source.GroupVersionKind(),
}
return sourceReconciler.reconcileMirror(ctx, source, source, targetNamespace)
}
// SetupWithManager sets up the controller with the Manager.
func (r *NamespaceReconciler) SetupWithManager(mgr ctrl.Manager) error {
// Create predicate to only watch for relevant namespace events
namespacePredicate := predicate.Funcs{
CreateFunc: func(e event.CreateEvent) bool {
// Always reconcile new namespaces
return true
},
UpdateFunc: func(e event.UpdateEvent) bool {
// Only reconcile if labels changed (specifically allow-mirrors label)
oldNs, okOld := e.ObjectOld.(*corev1.Namespace)
newNs, okNew := e.ObjectNew.(*corev1.Namespace)
if !okOld || !okNew {
return false
}
// Check if allow-mirrors label changed
oldLabel := oldNs.Labels[constants.LabelAllowMirrors]
newLabel := newNs.Labels[constants.LabelAllowMirrors]
return oldLabel != newLabel
},
DeleteFunc: func(e event.DeleteEvent) bool {
// Don't reconcile on delete - source reconcilers will handle cleanup via finalizers
return false
},
}
return ctrl.NewControllerManagedBy(mgr).
For(&corev1.Namespace{}).
WithEventFilter(namespacePredicate).
Complete(r)
}
+312
View File
@@ -0,0 +1,312 @@
package controller
import (
"context"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/client/fake"
ctrl "sigs.k8s.io/controller-runtime"
"github.com/lukaszraczylo/kubemirror/pkg/config"
"github.com/lukaszraczylo/kubemirror/pkg/constants"
"github.com/lukaszraczylo/kubemirror/pkg/filter"
)
func TestNamespaceReconciler_CleanupWhenNamespaceNoLongerTarget(t *testing.T) {
scheme := runtime.NewScheme()
_ = corev1.AddToScheme(scheme)
tests := []struct {
name string
namespace *corev1.Namespace
sourceResources []*unstructured.Unstructured
existingMirrors []*unstructured.Unstructured
expectedDeleted []string // mirror names that should be deleted
expectedRemaining []string // mirror names that should remain
}{
{
name: "namespace label changes to allow-mirrors=false, mirror should be deleted",
namespace: &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: "target-ns",
Labels: map[string]string{
constants.LabelAllowMirrors: "false", // Changed to false
},
},
},
sourceResources: []*unstructured.Unstructured{
makeUnstructuredSecret("test-secret", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "all",
}),
},
existingMirrors: []*unstructured.Unstructured{
makeUnstructuredMirror("test-secret", "target-ns", "default", "test-secret"),
},
expectedDeleted: []string{"test-secret"},
expectedRemaining: []string{},
},
{
name: "namespace no longer matches pattern, mirror should be deleted",
namespace: &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: "staging-1",
},
},
sourceResources: []*unstructured.Unstructured{
makeUnstructuredSecret("test-secret", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "prod-*", // Pattern changed, no longer matches staging-*
}),
},
existingMirrors: []*unstructured.Unstructured{
makeUnstructuredMirror("test-secret", "staging-1", "default", "test-secret"),
},
expectedDeleted: []string{"test-secret"},
expectedRemaining: []string{},
},
{
name: "namespace becomes valid target, no existing mirror, should be created",
namespace: &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: "prod-1",
},
},
sourceResources: []*unstructured.Unstructured{
makeUnstructuredSecret("test-secret", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "prod-*",
}),
},
existingMirrors: []*unstructured.Unstructured{},
expectedDeleted: []string{},
expectedRemaining: []string{"test-secret"}, // Should be created
},
{
name: "namespace still valid, mirror remains",
namespace: &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: "prod-1",
},
},
sourceResources: []*unstructured.Unstructured{
makeUnstructuredSecret("test-secret", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "prod-*",
}),
},
existingMirrors: []*unstructured.Unstructured{
makeUnstructuredMirror("test-secret", "prod-1", "default", "test-secret"),
},
expectedDeleted: []string{},
expectedRemaining: []string{"test-secret"},
},
{
name: "multiple sources, only non-matching mirrors deleted",
namespace: &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: "app-1",
},
},
sourceResources: []*unstructured.Unstructured{
makeUnstructuredSecret("secret-1", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "app-*", // Matches
}),
makeUnstructuredSecret("secret-2", "default", map[string]string{
constants.LabelEnabled: "true",
}, map[string]string{
constants.AnnotationSync: "true",
constants.AnnotationTargetNamespaces: "prod-*", // Doesn't match
}),
},
existingMirrors: []*unstructured.Unstructured{
makeUnstructuredMirror("secret-1", "app-1", "default", "secret-1"),
makeUnstructuredMirror("secret-2", "app-1", "default", "secret-2"),
},
expectedDeleted: []string{"secret-2"},
expectedRemaining: []string{"secret-1"},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
// Create fake client with namespace, sources, and existing mirrors
objects := []client.Object{tt.namespace}
for _, src := range tt.sourceResources {
objects = append(objects, src)
}
for _, mirror := range tt.existingMirrors {
objects = append(objects, mirror)
}
fakeClient := fake.NewClientBuilder().
WithScheme(scheme).
WithObjects(objects...).
Build()
// Create namespace lister mock
mockLister := &mockNamespaceLister{
namespaces: []string{tt.namespace.Name},
allowMirrors: func() map[string]bool {
result := make(map[string]bool)
if tt.namespace.Labels[constants.LabelAllowMirrors] == "true" {
result[tt.namespace.Name] = true
}
return result
}(),
optOut: func() map[string]bool {
result := make(map[string]bool)
if tt.namespace.Labels[constants.LabelAllowMirrors] == "false" {
result[tt.namespace.Name] = true
}
return result
}(),
}
// Create reconciler
reconciler := &NamespaceReconciler{
Client: fakeClient,
Scheme: scheme,
Config: &config.Config{MaxTargetsPerResource: 100},
Filter: filter.NewNamespaceFilter([]string{"kube-system"}, []string{}),
NamespaceLister: mockLister,
ResourceTypes: []config.ResourceType{
{Group: "", Version: "v1", Kind: "Secret"},
},
}
// Reconcile the namespace
ctx := context.Background()
req := ctrl.Request{
NamespacedName: client.ObjectKey{
Name: tt.namespace.Name,
},
}
_, err := reconciler.Reconcile(ctx, req)
require.NoError(t, err)
// Verify mirrors were deleted as expected
for _, mirrorName := range tt.expectedDeleted {
mirror := &unstructured.Unstructured{}
mirror.SetGroupVersionKind(schema.GroupVersionKind{Version: "v1", Kind: "Secret"})
err := fakeClient.Get(ctx, client.ObjectKey{
Namespace: tt.namespace.Name,
Name: mirrorName,
}, mirror)
assert.True(t, errors.IsNotFound(err),
"mirror %s should be deleted in namespace %s", mirrorName, tt.namespace.Name)
}
// Verify mirrors remain as expected
for _, mirrorName := range tt.expectedRemaining {
mirror := &unstructured.Unstructured{}
mirror.SetGroupVersionKind(schema.GroupVersionKind{Version: "v1", Kind: "Secret"})
err := fakeClient.Get(ctx, client.ObjectKey{
Namespace: tt.namespace.Name,
Name: mirrorName,
}, mirror)
assert.NoError(t, err,
"mirror %s should exist in namespace %s", mirrorName, tt.namespace.Name)
}
})
}
}
// Helper functions
func makeUnstructuredSecret(name, namespace string, labels, annotations map[string]string) *unstructured.Unstructured {
secret := &unstructured.Unstructured{}
secret.SetGroupVersionKind(schema.GroupVersionKind{
Version: "v1",
Kind: "Secret",
})
secret.SetName(name)
secret.SetNamespace(namespace)
secret.SetLabels(labels)
secret.SetAnnotations(annotations)
// Set some data
_ = unstructured.SetNestedMap(secret.Object, map[string]interface{}{
"key": "dmFsdWU=", // base64("value")
}, "data")
return secret
}
func makeUnstructuredMirror(name, namespace, sourceNs, sourceName string) *unstructured.Unstructured {
mirror := &unstructured.Unstructured{}
mirror.SetGroupVersionKind(schema.GroupVersionKind{
Version: "v1",
Kind: "Secret",
})
mirror.SetName(name)
mirror.SetNamespace(namespace)
mirror.SetLabels(map[string]string{
constants.LabelManagedBy: "kubemirror",
constants.LabelMirror: "true",
})
mirror.SetAnnotations(map[string]string{
constants.AnnotationSourceNamespace: sourceNs,
constants.AnnotationSourceName: sourceName,
constants.AnnotationSourceUID: "test-uid",
})
// Set some data
_ = unstructured.SetNestedMap(mirror.Object, map[string]interface{}{
"key": "dmFsdWU=",
}, "data")
return mirror
}
// Mock namespace lister for testing
type mockNamespaceLister struct {
namespaces []string
allowMirrors map[string]bool
optOut map[string]bool
}
func (m *mockNamespaceLister) ListNamespaces(ctx context.Context) ([]string, error) {
return m.namespaces, nil
}
func (m *mockNamespaceLister) ListAllowMirrorsNamespaces(ctx context.Context) ([]string, error) {
var result []string
for ns, allowed := range m.allowMirrors {
if allowed {
result = append(result, ns)
}
}
return result, nil
}
func (m *mockNamespaceLister) ListOptOutNamespaces(ctx context.Context) ([]string, error) {
var result []string
for ns, optedOut := range m.optOut {
if optedOut {
result = append(result, ns)
}
}
return result, nil
}
+93 -8
View File
@@ -36,6 +36,7 @@ type SourceReconciler struct {
Filter *filter.NamespaceFilter
NamespaceLister NamespaceLister
GVK schema.GroupVersionKind // The resource type this reconciler handles
APIReader client.Reader // Direct API reader (bypasses cache)
}
// NamespaceLister provides a list of all namespaces in the cluster.
@@ -43,20 +44,83 @@ type SourceReconciler struct {
type NamespaceLister interface {
ListNamespaces(ctx context.Context) ([]string, error)
ListAllowMirrorsNamespaces(ctx context.Context) ([]string, error)
ListOptOutNamespaces(ctx context.Context) ([]string, error)
}
// +kubebuilder:rbac:groups=core,resources=secrets,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=core,resources=configmaps,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=core,resources=namespaces,verbs=get;list;watch
// getSourceWithFreshness fetches a source resource with optional freshness verification.
// This implements a hybrid caching strategy:
// 1. First read from informer cache (fast, local)
// 2. If VerifySourceFreshness is enabled, make direct API call via APIReader
// 3. If resourceVersions differ, cache is stale - return fresh version from API
// 4. If resourceVersions match, cache is current - return cached version
//
// This prevents the race condition where:
// - Watch event arrives: "Secret changed!"
// - Reconciliation starts immediately
// - Cache hasn't updated yet (5-20 second lag)
// - We read stale data and mirror it
//
// Trade-off: 2x API calls when cache is stale, but guarantees data freshness.
func (r *SourceReconciler) getSourceWithFreshness(ctx context.Context, key client.ObjectKey, gvk schema.GroupVersionKind) (*unstructured.Unstructured, error) {
logger := log.FromContext(ctx)
// First try: Read from cache (fast)
cached := &unstructured.Unstructured{}
cached.SetGroupVersionKind(gvk)
if err := r.Get(ctx, key, cached); err != nil {
return nil, err
}
// If freshness verification is disabled, return cached version immediately
if !r.Config.VerifySourceFreshness {
logger.V(2).Info("using cached source (freshness check disabled)", "resourceVersion", cached.GetResourceVersion())
return cached, nil
}
// If APIReader is not available (e.g., in tests), fall back to cached version
if r.APIReader == nil {
logger.V(2).Info("using cached source (no APIReader available)", "resourceVersion", cached.GetResourceVersion())
return cached, nil
}
cachedRV := cached.GetResourceVersion()
// Second try: Direct API read to verify freshness (bypasses cache)
fresh := &unstructured.Unstructured{}
fresh.SetGroupVersionKind(gvk)
if err := r.APIReader.Get(ctx, key, fresh); err != nil {
// If direct API read fails, fall back to cached version
logger.V(1).Info("direct API read failed, using cached version", "error", err, "cachedRV", cachedRV)
return cached, nil
}
freshRV := fresh.GetResourceVersion()
// Compare resource versions
if cachedRV != freshRV {
// Cache is stale - return fresh version from API
logger.V(1).Info("cache stale, using fresh API version",
"cachedRV", cachedRV,
"freshRV", freshRV)
return fresh, nil
}
// Cache is current - return cached version (saves memory allocation)
logger.V(2).Info("cache current", "resourceVersion", cachedRV)
return cached, nil
}
// Reconcile processes a single source resource.
func (r *SourceReconciler) Reconcile(ctx context.Context, req ctrl.Request) (ctrl.Result, error) {
logger := log.FromContext(ctx).WithValues("namespace", req.Namespace, "name", req.Name)
// Fetch the source resource as unstructured (works for all resource types)
source := &unstructured.Unstructured{}
source.SetGroupVersionKind(r.GVK) // Set the GVK so the client knows what to fetch
if err := r.Get(ctx, req.NamespacedName, source); err != nil {
// Fetch the source resource with optional freshness verification
source, err := r.getSourceWithFreshness(ctx, req.NamespacedName, r.GVK)
if err != nil {
if errors.IsNotFound(err) {
// Resource deleted - nothing to do
return ctrl.Result{}, nil
@@ -216,10 +280,24 @@ func (r *SourceReconciler) reconcileMirror(ctx context.Context, source runtime.O
return fmt.Errorf("failed to get existing mirror: %w", err)
}
// If freshness verification is enabled and mirror exists, verify it's fresh too
if err == nil && r.Config.VerifySourceFreshness && r.APIReader != nil {
fresh := &unstructured.Unstructured{}
fresh.SetGroupVersionKind(sourceUnstructured.GroupVersionKind())
if apiErr := r.APIReader.Get(ctx, client.ObjectKey{Namespace: targetNs, Name: sourceObj.GetName()}, fresh); apiErr == nil {
if fresh.GetResourceVersion() != existing.GetResourceVersion() {
logger.V(2).Info("mirror cache stale, using fresh API version",
"cachedRV", existing.GetResourceVersion(),
"freshRV", fresh.GetResourceVersion())
existing = fresh
}
}
}
if err == nil {
// Mirror exists - check if it's managed by us
if !IsManagedByUs(existing) {
logger.Info("target resource exists but not managed by kubemirror, skipping")
logger.V(1).Info("target resource exists but not managed by kubemirror, skipping")
return nil
}
@@ -230,7 +308,7 @@ func (r *SourceReconciler) reconcileMirror(ctx context.Context, source runtime.O
}
if !needsSync {
logger.V(1).Info("mirror is up to date")
logger.V(2).Info("mirror is up to date")
return nil
}
@@ -243,7 +321,7 @@ func (r *SourceReconciler) reconcileMirror(ctx context.Context, source runtime.O
return fmt.Errorf("failed to update mirror in cluster: %w", err)
}
logger.Info("mirror updated")
logger.V(1).Info("mirror updated")
return nil
}
@@ -257,7 +335,7 @@ func (r *SourceReconciler) reconcileMirror(ctx context.Context, source runtime.O
return fmt.Errorf("failed to create mirror in cluster: %w", err)
}
logger.Info("mirror created")
logger.V(1).Info("mirror created")
return nil
}
@@ -407,11 +485,18 @@ func (r *SourceReconciler) resolveTargetNamespaces(ctx context.Context, sourceOb
return nil, fmt.Errorf("failed to list allow-mirrors namespaces: %w", err)
}
// Get namespaces that have explicitly opted out (allow-mirrors="false")
optOutNamespaces, err := r.NamespaceLister.ListOptOutNamespaces(ctx)
if err != nil {
return nil, fmt.Errorf("failed to list opt-out namespaces: %w", err)
}
// Resolve target namespaces
targetNamespaces := filter.ResolveTargetNamespaces(
patterns,
allNamespaces,
allowMirrorsNamespaces,
optOutNamespaces,
sourceObj.GetNamespace(),
r.Filter,
)
+9
View File
@@ -129,6 +129,11 @@ func (m *MockNamespaceLister) ListAllowMirrorsNamespaces(ctx context.Context) ([
return args.Get(0).([]string), args.Error(1)
}
func (m *MockNamespaceLister) ListOptOutNamespaces(ctx context.Context) ([]string, error) {
args := m.Called(ctx)
return args.Get(0).([]string), args.Error(1)
}
func TestIsEnabledForMirroring(t *testing.T) {
tests := []struct {
obj metav1.Object
@@ -277,6 +282,7 @@ func TestSourceReconciler_resolveTargetNamespaces(t *testing.T) {
if tt.expectListCalls {
mockLister.On("ListNamespaces", mock.Anything).Return(tt.allNamespaces, nil)
mockLister.On("ListAllowMirrorsNamespaces", mock.Anything).Return(tt.allowMirrorsNamespaces, nil)
mockLister.On("ListOptOutNamespaces", mock.Anything).Return([]string{}, nil)
}
r := &SourceReconciler{
@@ -441,6 +447,7 @@ func BenchmarkResolveTargetNamespaces(b *testing.B) {
}
mockLister.On("ListNamespaces", mock.Anything).Return(allNamespaces, nil)
mockLister.On("ListAllowMirrorsNamespaces", mock.Anything).Return(allNamespaces[:50], nil)
mockLister.On("ListOptOutNamespaces", mock.Anything).Return([]string{}, nil)
r := &SourceReconciler{
Config: &config.Config{},
@@ -616,6 +623,7 @@ func TestSourceReconciler_Reconcile_AnnotationChange_AllToAllLabeled(t *testing.
mockLister.On("ListNamespaces", mock.Anything).Return(allNamespaces, nil)
mockLister.On("ListAllowMirrorsNamespaces", mock.Anything).Return(allowMirrorsNamespaces, nil)
mockLister.On("ListOptOutNamespaces", mock.Anything).Return([]string{}, nil)
// Mock Get for source
mockClient.On("Get", mock.Anything, types.NamespacedName{Namespace: "default", Name: "test-secret"}, mock.Anything).
@@ -739,6 +747,7 @@ func TestSourceReconciler_Reconcile_AnnotationChange_PatternChange(t *testing.T)
mockLister.On("ListNamespaces", mock.Anything).Return(allNamespaces, nil)
mockLister.On("ListAllowMirrorsNamespaces", mock.Anything).Return([]string{}, nil)
mockLister.On("ListOptOutNamespaces", mock.Anything).Return([]string{}, nil)
// Mock Get for source
mockClient.On("Get", mock.Anything, types.NamespacedName{Namespace: "default", Name: "app-config"}, mock.Anything).
+14 -3
View File
@@ -105,6 +105,7 @@ func ParseTargetNamespaces(value string) []string {
// - patterns: namespace patterns from annotation
// - allNamespaces: list of all namespaces in cluster
// - allowMirrorsNamespaces: namespaces with allow-mirrors label
// - optOutNamespaces: namespaces with allow-mirrors="false" (explicitly opted out)
// - sourceNamespace: exclude this namespace to prevent self-copy
// - filter: namespace filter for exclusions
//
@@ -113,6 +114,7 @@ func ResolveTargetNamespaces(
patterns []string,
allNamespaces []string,
allowMirrorsNamespaces []string,
optOutNamespaces []string,
sourceNamespace string,
filter *NamespaceFilter,
) []string {
@@ -120,21 +122,30 @@ func ResolveTargetNamespaces(
return nil
}
// Create map of opt-out namespaces for fast lookup
optOutMap := make(map[string]bool)
for _, ns := range optOutNamespaces {
optOutMap[ns] = true
}
// Use map to deduplicate
targetMap := make(map[string]bool)
for _, pattern := range patterns {
switch pattern {
case constants.TargetNamespacesAll:
// Mirror to all namespaces (except source and excluded)
// Mirror to all namespaces (except source, excluded, and opt-out)
// This implements opt-OUT model: namespaces without labels get mirrors
// Only namespaces with allow-mirrors="false" are excluded
for _, ns := range allNamespaces {
if ns != sourceNamespace && filter.IsAllowed(ns) {
if ns != sourceNamespace && filter.IsAllowed(ns) && !optOutMap[ns] {
targetMap[ns] = true
}
}
case constants.TargetNamespacesAllLabeled:
// Mirror only to namespaces with allow-mirrors label
// Mirror only to namespaces with allow-mirrors="true" label
// This implements opt-IN model
for _, ns := range allowMirrorsNamespaces {
if ns != sourceNamespace && filter.IsAllowed(ns) {
targetMap[ns] = true
+7
View File
@@ -318,6 +318,7 @@ func TestResolveTargetNamespaces(t *testing.T) {
tt.patterns,
tt.allNamespaces,
tt.allowMirrorsNamespaces,
[]string{}, // optOutNamespaces - empty for these tests
tt.sourceNamespace,
tt.filter,
)
@@ -342,6 +343,7 @@ func TestResolveTargetNamespaces_EdgeCases(t *testing.T) {
[]string{"all"},
[]string{},
[]string{},
[]string{}, // optOutNamespaces
"default",
NewNamespaceFilter([]string{}, []string{}),
)
@@ -354,6 +356,7 @@ func TestResolveTargetNamespaces_EdgeCases(t *testing.T) {
[]string{"[invalid"},
[]string{"app1"},
[]string{},
[]string{}, // optOutNamespaces
"default",
NewNamespaceFilter([]string{}, []string{}),
)
@@ -366,6 +369,7 @@ func TestResolveTargetNamespaces_EdgeCases(t *testing.T) {
[]string{"all"},
[]string{"app1", "app2", "app3"},
[]string{},
[]string{}, // optOutNamespaces
"default",
strictFilter,
)
@@ -541,6 +545,7 @@ func BenchmarkResolveTargetNamespaces(b *testing.B) {
tt.patterns,
allNamespaces,
allowMirrorsNamespaces,
[]string{}, // optOutNamespaces
"default",
filter,
)
@@ -566,6 +571,7 @@ func BenchmarkResolveTargetNamespaces_LargeScale(b *testing.B) {
[]string{constants.TargetNamespacesAll},
allNamespaces,
allowMirrorsNamespaces,
[]string{}, // optOutNamespaces
"default",
filter,
)
@@ -579,6 +585,7 @@ func BenchmarkResolveTargetNamespaces_LargeScale(b *testing.B) {
[]string{"namespace-*"},
allNamespaces,
allowMirrorsNamespaces,
[]string{}, // optOutNamespaces
"default",
filter,
)
+4 -2
View File
@@ -10,6 +10,8 @@ import (
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/runtime"
"github.com/lukaszraczylo/kubemirror/pkg/constants"
)
// ComputeContentHash computes a SHA256 hash of the resource's actual content.
@@ -109,7 +111,7 @@ func NeedsSync(source, target runtime.Object, targetAnnotations map[string]strin
// Layer 1: Generation-based check (for resources that support it)
sourceGen := getGeneration(source)
if sourceGen > 0 {
targetSourceGen := targetAnnotations["source-generation"]
targetSourceGen := targetAnnotations[constants.AnnotationSourceGeneration]
if fmt.Sprintf("%d", sourceGen) != targetSourceGen {
return true, nil // Generation changed
}
@@ -121,7 +123,7 @@ func NeedsSync(source, target runtime.Object, targetAnnotations map[string]strin
return false, fmt.Errorf("failed to compute source hash: %w", err)
}
targetSourceHash := targetAnnotations["source-content-hash"]
targetSourceHash := targetAnnotations[constants.AnnotationSourceContentHash]
if sourceHash != targetSourceHash {
return true, nil // Content changed
}
+6 -5
View File
@@ -3,6 +3,7 @@ package hash
import (
"testing"
"github.com/lukaszraczylo/kubemirror/pkg/constants"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
corev1 "k8s.io/api/core/v1"
@@ -374,8 +375,8 @@ func TestNeedsSync(t *testing.T) {
},
target: &unstructured.Unstructured{},
targetAnnotations: map[string]string{
"source-generation": "3",
"source-content-hash": "abc123",
constants.AnnotationSourceGeneration: "3",
constants.AnnotationSourceContentHash: "abc123",
},
want: true,
wantError: false,
@@ -387,8 +388,8 @@ func TestNeedsSync(t *testing.T) {
},
target: &corev1.Secret{},
targetAnnotations: map[string]string{
"source-generation": "0",
"source-content-hash": mustComputeHash(t, &corev1.Secret{Data: map[string][]byte{"key": []byte("value")}}),
constants.AnnotationSourceGeneration: "0",
constants.AnnotationSourceContentHash: mustComputeHash(t, &corev1.Secret{Data: map[string][]byte{"key": []byte("value")}}),
},
want: false,
wantError: false,
@@ -400,7 +401,7 @@ func TestNeedsSync(t *testing.T) {
},
target: &corev1.ConfigMap{},
targetAnnotations: map[string]string{
"source-content-hash": "oldhash",
constants.AnnotationSourceContentHash: "oldhash",
},
want: true,
wantError: false,