Chart: Remove isControllerTagValid. (#11714)

charts/ingress-nginx/templates/_helpers.tpl

@@ -233,15 +233,6 @@ Return the appropriate apiGroup for PodSecurityPolicy.
 {{- end -}}
 {{- end -}}
 
-{{/*
-Check the ingress controller version tag is at most three versions behind the last release
-*/}}
-{{- define "isControllerTagValid" -}}
-{{- if not (semverCompare ">=0.27.0-0" .Values.controller.image.tag) -}}
-{{- fail "Controller container image tag should be 0.27.0 or higher" -}}
-{{- end -}}
-{{- end -}}
-
 {{/*
 Extra modules.
 */}}

charts/ingress-nginx/templates/controller-daemonset.yaml

@@ -1,5 +1,4 @@
 {{- if eq .Values.controller.kind "DaemonSet" -}}
-{{- include  "isControllerTagValid" . -}}
 apiVersion: apps/v1
 kind: DaemonSet
 metadata:

charts/ingress-nginx/templates/controller-deployment.yaml

@@ -1,5 +1,4 @@
 {{- if eq .Values.controller.kind "Deployment" -}}
-{{- include  "isControllerTagValid" . -}}
 apiVersion: apps/v1
 kind: Deployment
 metadata:

charts/ingress-nginx/tests/controller-daemonset_test.yaml

@@ -95,3 +95,13 @@ tests:
               topologyKey: kubernetes.io/hostname
               maxSkew: 1
               whenUnsatisfiable: ScheduleAnyway
+
+  - it: should create a DaemonSet with a custom tag if `controller.image.tag` is set
+    set:
+      controller.kind: DaemonSet
+      controller.image.tag: my-little-custom-tag
+      controller.image.digest: sha256:faa2d18687f734994b6bd9e309e7a73852a81c30e1b8f63165fcd4f0a087e3cd
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].image
+          value: registry.k8s.io/ingress-nginx/controller:my-little-custom-tag@sha256:faa2d18687f734994b6bd9e309e7a73852a81c30e1b8f63165fcd4f0a087e3cd

charts/ingress-nginx/tests/controller-deployment_test.yaml

@@ -118,3 +118,12 @@ tests:
               topologyKey: kubernetes.io/hostname
               maxSkew: 1
               whenUnsatisfiable: ScheduleAnyway
+
+  - it: should create a Deployment with a custom tag if `controller.image.tag` is set
+    set:
+      controller.image.tag: my-little-custom-tag
+      controller.image.digest: sha256:faa2d18687f734994b6bd9e309e7a73852a81c30e1b8f63165fcd4f0a087e3cd
+    asserts:
+      - equal:
+          path: spec.template.spec.containers[0].image
+          value: registry.k8s.io/ingress-nginx/controller:my-little-custom-tag@sha256:faa2d18687f734994b6bd9e309e7a73852a81c30e1b8f63165fcd4f0a087e3cd