From 0b1faef352ee15621b9239fb13c8a2a56c3cb4dd Mon Sep 17 00:00:00 2001
From: Lukasz Raczylo <lukasz@raczylo.com>
Date: Sat, 13 Mar 2021 09:40:45 +0000
Subject: [PATCH] Add prometheus CRD cleanup on destroy.

---
 step3/infrastructure/prometheus.tf | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/step3/infrastructure/prometheus.tf b/step3/infrastructure/prometheus.tf
index 0ce8bce..dc722f2 100644
--- a/step3/infrastructure/prometheus.tf
+++ b/step3/infrastructure/prometheus.tf
@@ -39,6 +39,23 @@ kubectl patch ds prometheus-prometheus-node-exporter --type json -p '[{"op": "re
   }
 }
 
+resource "null_resource" "prometheus_crd_on_destroy" {
+  depends_on = [helm_release.prometheus]
+  provisioner "local-exec" {
+    when    = destroy
+    command = <<EOF
+kubectl delete crd alertmanagerconfigs.monitoring.coreos.com
+kubectl delete crd alertmanagers.monitoring.coreos.com
+kubectl delete crd podmonitors.monitoring.coreos.com
+kubectl delete crd probes.monitoring.coreos.com
+kubectl delete crd prometheuses.monitoring.coreos.com
+kubectl delete crd prometheusrules.monitoring.coreos.com
+kubectl delete crd servicemonitors.monitoring.coreos.com
+kubectl delete crd thanosrulers.monitoring.coreos.com
+    EOF
+  }
+}
+
 resource "kubernetes_ingress" "traefik_grafana_routing" {
   metadata {
     name = "traefik-k8s-grafana"