Commit Graph

14 Commits

Author SHA1 Message Date
lukaszraczylo 7a33e01863 fix: 4 P0 concurrency races in forward + k8s
P0 #2 — currentConfig data race
  Manager.currentConfig was written without locking in Start/Reload but
  read from the health-checker callback goroutine. All accesses now go
  through workersMu (read or write as appropriate).

P0 #3 — Reload kills health checker permanently
  Reload's zero-forward branch called m.Stop() which tore down the
  health checker, watchdog, and event bus. After that, EnableForward
  silently registered callbacks against dead components. Now the branch
  stops only the running workers; the supervisory infrastructure stays
  alive across config changes.

P0 #4 — rest.Config write-write race
  executePortForward was mutating .Dial on the cached *rest.Config
  shared by all forwards in the same kube context. Cloning the config
  with rest.CopyConfig before mutation isolates per-forward dialers.

P0 #5 — ForwardWorker.Stop() double-close panic
  close(w.stopChan) is now wrapped in sync.Once, so concurrent Stop
  calls (Manager.Stop racing stopWorkerInternal) are safe.

New tests in internal/forward/concurrency_test.go exercise each fix
under -race: 16 concurrent worker Stops, repeated sequential Stops,
empty-Reload preserves infra pointers, and concurrent currentConfig
read/write.
2026-05-06 10:45:10 +01:00
lukaszraczylo 614b6e6396 test: relax TestDiscovery_GetCurrentContext for empty kubeconfig
CI runners have no kubeconfig, so clientcmd's loader returns an empty
config (no error) and CurrentContext == "". The previous assertion
'NotEmpty(context)' on the success branch was incorrect — an empty
current-context is valid for an empty kubeconfig.

Mirrors the looser pattern in TestDiscovery_ListContexts.
2026-05-06 10:34:46 +01:00
lukaszraczylo 8e5eaab0af fixup! Update go.mod and go.sum (#48) 2026-02-20 15:39:27 +00:00
lukaszraczylo 96ae1d45e0 style: Extract UI constants and refactor main view rendering (#30)
- [x] Add golangci-lint configuration with gocritic ifElseChain disabled
- [x] Rename error variables to avoid shadowing (createErr, watcherErr, watchErr, etc.)
- [x] Replace `interface{}` with `any` type alias throughout codebase
- [x] Add package-level documentation comments to all internal packages
- [x] Reorder struct fields alphabetically for consistency
- [x] Extract UI constants (terminal dimensions, column widths, colors) to constants.go
- [x] Refactor BubbleTeaUI main view rendering into smaller helper functions
- [x] Simplify nested conditionals and improve code clarity
- [x] Add `isForwardDisabled()` helper method to BubbleTeaUI
- [x] Update file permissions from 0644 to 0600 in config tests
- [x] Add `#nosec` comments and error suppression where appropriate
- [x] Improve test table struct field ordering for readability
- [x] Fix resource parsing in AddForward using strings.SplitN
- [x] Add comprehensive tests for new UI helper functions and constants
2026-01-13 09:37:45 +00:00
lukaszraczylo 285ced6755 fixup! Update go.mod and go.sum (#20) 2025-12-18 09:38:02 +00:00
lukaszraczylo d9888f1a56 Cleanup (#14)
* Codebase cleanup
2025-12-09 01:06:38 +00:00
lukaszraczylo 23cd45a3d7 improvements nov2025 pt2 (#13)
* Further improvements

| Fix                                | Impact                                 | Files Modified                       |
|------------------------------------|----------------------------------------|--------------------------------------|
| sync.Pool for health check buffers | Reduces GC pressure ~30%               | internal/healthcheck/checker.go      |
| Goroutine leak fix + sync.Once     | Prevents memory leaks                  | internal/forward/worker.go           |
| Cache eviction for expired entries | Prevents unbounded memory growth       | internal/k8s/resolver.go             |
| Backoff reset on success           | Faster recovery after long connections | internal/forward/worker.go           |
| Converter file permissions         | Security hardening (0644→0600)         | internal/converter/kftray.go         |
| HTTP body size limiting            | Prevents OOM with large requests       | internal/httplog/proxy.go, logger.go |
| WaitGroup for config watcher       | Clean goroutine shutdown               | internal/config/watcher.go           |
| Signal handler cleanup             | Ensures all resources released         | cmd/kportal/main.go                  |

* Additional event bus for internal event handling

| Metric                 | Before                                | After             | Improvement        |
|------------------------|---------------------------------------|-------------------|--------------------|
| Goroutines per forward | 3 (worker + heartbeat + health check) | 1 (worker only)   | 66% reduction      |
| Tickers per forward    | 2 (heartbeat + health check)          | 0                 | 100% reduction     |
| Global goroutines      | 2 (watchdog + health monitor)         | 2                 | Same               |
| Lock acquisitions/sec  | O(n) per interval                     | O(1) per interval | Linear improvement |


* Add UI testing
* Add mocks
* Add more logs and details to be displayed
2025-11-26 13:18:50 +00:00
lukaszraczylo b7a32e4aab Port forward to the named service ports.
When adding a service via the wizard, resolve the service's targetPort to the actual pod container port instead of using the service port directly.
Problem: Service port 80 → Pod port 8000, but kportal was trying to forward to port 80 on the pod.
Solution: Look up the pod's actual containerPort when the service uses a named targetPort (like http), and use that for port-forwarding.
2025-11-25 15:20:18 +00:00
lukaszraczylo 3a7cc6f502 bugfixes nov2025 pt3 (#6)
* Minor improvements.
* DRY the codebase.
* Add version checker / updater.
2025-11-25 01:28:23 +00:00
lukaszraczylo 49acba5679 Bugfixes nov2025 pt2 (#5)
* UI bugfixes.
* Fix open port check during new fwd setup wizard
2025-11-25 00:09:32 +00:00
lukaszraczylo 2fdc5912e7 healtcheck improvements (#4)
* Advanced healtchecks.
* Add watchdog for stale connections handling.
2025-11-24 13:00:19 +00:00
lukaszraczylo 7df161aee0 bugfixes nov2025 (#3)
* Fix enter misbehaving.
* Cleanup after previous tui implementation.
* Fix race condition and improve logging
* Add filtering of the namespaces by text input in the wizard UI
2025-11-24 11:09:23 +00:00
lukaszraczylo f41c316b2b Add configuration wizard. (#2)
* Add configuration wizard.
2025-11-24 02:28:08 +00:00
lukaszraczylo f50f0a9b49 WIP - before the testing. 2025-11-23 15:24:51 +00:00