argo: add support for individual image tags.

This allows the use of digests for the controller/ui/executor.

charts/argo/templates/ui-deployment.yaml

@@ -20,7 +20,7 @@ spec:
       serviceAccountName: {{ .Values.ui.serviceAccount | quote }}
       containers:
         - name: ui
-          image: "{{ .Values.images.namespace }}/{{ .Values.images.ui }}:{{ .Values.images.tag }}"
+          image: "{{ .Values.images.namespace }}/{{ .Values.images.ui }}:{{ default .Values.images.tag .Values.ui.image.tag }}"
           imagePullPolicy: {{ .Values.images.pullPolicy }}
           env:
           {{- if .Values.ui.forceNamespaceIsolation }}

charts/argo/templates/workflow-controller-deployment.yaml

@@ -20,14 +20,14 @@ spec:
       serviceAccountName: {{ .Values.controller.serviceAccount | quote }}
       containers:
         - name: controller
-          image: "{{ .Values.images.namespace }}/{{ .Values.images.controller }}:{{ .Values.images.tag }}"
+          image: "{{ .Values.images.namespace }}/{{ .Values.images.controller }}:{{ default .Values.images.tag .Values.controller.image.tag }}"
           imagePullPolicy: {{ .Values.images.pullPolicy }}
           command: [ "workflow-controller" ]
           args:
           - "--configmap"
           - "{{ .Release.Name }}-{{ .Values.controller.name}}-configmap"
           - "--executor-image"
-          - "{{ .Values.images.namespace }}/{{ .Values.images.executor }}:{{ .Values.images.tag }}"
+          - "{{ .Values.images.namespace }}/{{ .Values.images.executor }}:{{ default .Values.images.tag .Values.executor.image.tag }}"
           - "--loglevel"
           - "{{ .Values.controller.logging.level }}"
           - "--gloglevel"

charts/argo/values.yaml

@@ -16,6 +16,9 @@ init:
 createAggregateRoles: true
 
 controller:
+  image:
+    # Overrides .images.tag if defined.
+    tag: ""
   # podAnnotations is an optional map of annotations to be applied to the controller Pods
   podAnnotations: {}
   metricsConfig:
@@ -39,10 +42,18 @@ controller:
     level: info
     globallevel: "0"
 
+executor:
+  image:
+    # Overrides .images.tag if defined.
+    tag: ""
+
 ui:
   enabled: true
   # only show workflows where UI installed
   forceNamespaceIsolation: false
+  image:
+    # Overrides .images.tag if defined.
+    tag: ""
   # optional map of annotations to be applied to the ui Pods
   podAnnotations: {}
   name: ui