feat(argo-workflows): Support workflowEvent configuration to Argo Workflow Controller (#3115)

Support workflowEvent configuration to Argo Workflow Controller

Signed-off-by: Cristhian Roa <cristhian.roa@constellr.com>
Co-authored-by: Aikawa <yu.croco@gmail.com>

charts/argo-workflows/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v3.6.2
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.45.3
+version: 0.45.4
 icon: https://argo-workflows.readthedocs.io/en/stable/assets/logo.png
 home: https://github.com/argoproj/argo-helm
 sources:
@@ -17,4 +17,4 @@ annotations:
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: added
-      description: Support ephemeral credentials for s3 artifact repository
+      description: Support configuring workflow events in the controller

charts/argo-workflows/README.md

@@ -239,6 +239,7 @@ Fields to note:
 | controller.volumeMounts | list | `[]` | Additional volume mounts to the controller main container |
 | controller.volumes | list | `[]` | Additional volumes to the controller pod |
 | controller.workflowDefaults | object | `{}` | Default values that will apply to all Workflows from this controller, unless overridden on the Workflow-level. Only valid for 2.7+ |
+| controller.workflowEvents.enabled | bool | `true` | Enable to emit events on workflow status changes. |
 | controller.workflowNamespaces | list | `["default"]` | Specify all namespaces where this workflow controller instance will manage workflows. This controls where the service account and RBAC resources will be created. Only valid when singleNamespace is false. |
 | controller.workflowRestrictions | object | `{}` | Restricts the Workflows that the controller will process. Only valid for 2.9+ |
 | controller.workflowTTLWorkers | string | `nil` | Number of workflow TTL workers |

charts/argo-workflows/templates/controller/workflow-controller-config-map.yaml

@@ -200,6 +200,8 @@ data:
     {{- end }}
     nodeEvents:
       enabled: {{ .Values.controller.nodeEvents.enabled }}
+    workflowEvents:
+      enabled: {{ .Values.controller.workflowEvents.enabled }}
     {{- with .Values.controller.kubeConfig }}
     kubeConfig: {{- toYaml . | nindent 6 }}
     {{- end }}

charts/argo-workflows/values.yaml

@@ -402,6 +402,12 @@ controller:
     ## "Unable to create audit event: etcdserver: mvcc: database space exceeded"
     enabled: true
 
+  workflowEvents:
+    # -- Enable to emit events on workflow status changes.
+    ## This can take up a lot of space in k8s (typically etcd), resulting in errors when trying to create new events:
+    ## "Unable to create audit event: etcdserver: mvcc: database space exceeded"
+    enabled: true
+
   # -- Configure when workflow controller runs in a different k8s cluster with the workflow workloads,
   # or needs to communicate with the k8s apiserver using an out-of-cluster kubeconfig secret.
   # @default -- `{}` (See [values.yaml])