feat(argo-rollouts): add controller.createConfigmap flag (#3793)

Author: a1exx-k

charts/argo-rollouts/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v1.8.4
 description: A Helm chart for Argo Rollouts
 name: argo-rollouts
-version: 2.40.6
+version: 2.40.7
 home: https://github.com/argoproj/argo-helm
 icon: https://argoproj.github.io/argo-rollouts/assets/logo.png
 keywords:
@@ -18,5 +18,5 @@ annotations:
     fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
-    - kind: changed
-      description: Bump argo-rollouts to v1.8.4
+    - kind: added
+      description: Added flag to optionally disable argo-rollouts-config ConfigMap creation

charts/argo-rollouts/README.md

@@ -90,6 +90,7 @@ For full list of changes please check ArtifactHub [changelog].
 | controller.containerPorts.healthz | int | `8080` | Healthz container port |
 | controller.containerPorts.metrics | int | `8090` | Metrics container port |
 | controller.createClusterRole | bool | `true` | flag to enable creation of cluster controller role (requires cluster RBAC) |
+| controller.createConfigmap | bool | `true` | Whether to create the argo-rollouts-config ConfigMap. Set to false when running multiple controller instances in the same namespace (e.g. with different --instance-id values) to avoid Helm ownership conflicts; each secondary instance will read the ConfigMap created by the primary release. |
 | controller.deploymentAnnotations | object | `{}` | Annotations to be added to the controller deployment |
 | controller.deploymentLabels | object | `{}` | Labels to be added to the controller deployment |
 | controller.extraArgs | list | `[]` | Additional command line arguments to pass to rollouts-controller.  A list of flags. |

charts/argo-rollouts/templates/controller/configmap.yaml

@@ -1,3 +1,4 @@
+{{- if .Values.controller.createConfigmap }}
 apiVersion: v1
 kind: ConfigMap
 metadata:
@@ -19,3 +20,4 @@ data:
   trafficRouterPlugins: |-
     {{- toYaml . | nindent 4 }}
   {{- end }}
+{{- end }}

charts/argo-rollouts/values.yaml

@@ -251,6 +251,12 @@ controller:
     # - name: "argoproj-labs/sample-nginx" # name of the plugin, it must match the name required by the plugin so it can find it's configuration
     #   location: "file://./my-custom-plugin" # supports http(s):// urls and file://
 
+  # -- Whether to create the argo-rollouts-config ConfigMap. Set to false when running multiple
+  # controller instances in the same namespace (e.g. with different --instance-id values) to
+  # avoid Helm ownership conflicts; each secondary instance will read the ConfigMap created by
+  # the primary release.
+  createConfigmap: true
+
 serviceAccount:
   # -- Specifies whether a service account should be created
   create: true