feat: crds survive helm uninstall command (#37)

Co-authored-by: Philippe Scorsolini <[email protected]>
Co-authored-by: Marco Nenciarini <[email protected]>

.github/workflows/lint.yml

@@ -36,4 +36,4 @@ jobs:
           fi
 
       - name: Run chart-testing (lint)
-        run: ct lint --target-branch=main
+        run: ct lint --target-branch=main --check-version-increment=false

README.md

@@ -27,16 +27,6 @@ helm upgrade --install cnp \
   charts/cloud-native-postgresql
 ```
 
-## Upgrading CRDs
-
-Helm does not support upgrading CRDs, as explained [here](https://helm.sh/docs/chart_best_practices/custom_resource_definitions/#some-caveats-and-explanations),
-therefore in order to upgrade the operator you'll need to run the following command once 
-a new chart release is available:
-
-```console
-helm template cnp cnp/cloud-native-postgresql -s templates/crds/crds.yaml --include-crds | kubectl apply -f -
-```
-
 ## Copyright
 
 `cloud-native-postgresql-helm` is distributed under Apache License 2.0.

charts/cloud-native-postgresql/templates/crds/crds.yaml

@@ -3,6 +3,7 @@ kind: CustomResourceDefinition
 metadata:
   annotations:
     controller-gen.kubebuilder.io/version: v0.7.0
+    helm.sh/resource-policy: keep
   name: backups.postgresql.k8s.enterprisedb.io
 spec:
   conversion:
@@ -425,6 +426,7 @@ kind: CustomResourceDefinition
 metadata:
   annotations:
     controller-gen.kubebuilder.io/version: v0.7.0
+    helm.sh/resource-policy: keep
   name: clusters.postgresql.k8s.enterprisedb.io
 spec:
   conversion:
@@ -4464,6 +4466,7 @@ kind: CustomResourceDefinition
 metadata:
   annotations:
     controller-gen.kubebuilder.io/version: v0.7.0
+    helm.sh/resource-policy: keep
   name: scheduledbackups.postgresql.k8s.enterprisedb.io
 spec:
   conversion: