chore(argo-workflows): Support workflow retention (#1668)

Signed-off-by: yu-croco <yu.croco@gmail.com>

charts/argo-workflows/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: v3.4.3
 name: argo-workflows
 description: A Helm chart for Argo Workflows
 type: application
-version: 0.20.10
+version: 0.20.11
 icon: https://raw.githubusercontent.com/argoproj/argo-workflows/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm
 sources:
@@ -13,4 +13,4 @@ maintainers:
     url: https://argoproj.github.io/
 annotations:
   artifacthub.io/changes: |
-    - "[Added]: Add labels to ServiceAccounts."
+    - "[Added]: Support workflow retention"

charts/argo-workflows/README.md

@@ -112,6 +112,7 @@ Fields to note:
 | controller.replicas | int | `1` | The number of controller pods to run |
 | controller.resourceRateLimit | object | `{}` | Globally limits the rate at which pods are created. This is intended to mitigate flooding of the Kubernetes API server by workflows with a large amount of parallel nodes. |
 | controller.resources | object | `{}` | Resource limits and requests for the controller |
+| controller.retentionPolicy | object | `{}` | Workflow retention by number of workflows |
 | controller.securityContext | object | `{"allowPrivilegeEscalation":false,"capabilities":{"drop":["ALL"]},"readOnlyRootFilesystem":true,"runAsNonRoot":true}` | the controller container's securityContext |
 | controller.serviceAccount.annotations | object | `{}` | Annotations applied to created service account |
 | controller.serviceAccount.create | bool | `true` | Create a service account for the controller |

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

@@ -167,3 +167,6 @@ data:
     {{- with .Values.controller.navColor }}
     navColor: {{ . }}
     {{- end }}
+    {{- with .Values.controller.retentionPolicy }}
+    retentionPolicy: {{- toYaml . | nindent 6 }}
+    {{- end }}

charts/argo-workflows/values.yaml

@@ -291,6 +291,12 @@ controller:
   # -- Extra containers to be added to the controller deployment
   extraContainers: []
 
+  # -- Workflow retention by number of workflows
+  retentionPolicy: {}
+  #  completed: 10
+  #  failed: 3
+  #  errored: 3
+
 # mainContainer adds default config for main container that could be overriden in workflows template
 mainContainer:
   # -- imagePullPolicy to apply to Workflow main container. Defaults to `.Values.images.pullPolicy`.