feat(argo): Populate workflow service account with pull secrets

Signed-off-by: Joseph McGovern <joseph.mcgovern@workiva.com>

charts/argo/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v2.12.3
 description: A Helm chart for Argo Workflows
 name: argo
-version: 0.15.2
+version: 0.15.3
 icon: https://raw.githubusercontent.com/argoproj/argo/master/docs/assets/argo.png
 home: https://github.com/argoproj/argo-helm
 maintainers:

charts/argo/templates/workflow-sa.yaml

@@ -10,4 +10,8 @@ metadata:
   annotations:
     {{- toYaml . | nindent 4 }}
   {{- end }}
+{{- with .Values.workflow.serviceAccount.imagePullSecrets }}
+imagePullSecrets:
+  {{- toYaml . | nindent 2 }}
+{{- end }}
 {{- end }}

charts/argo/values.yaml

@@ -29,6 +29,7 @@ workflow:
     create: false  # Specifies whether a service account should be created
     annotations: {}
     name: "argo-workflow"  # Service account which is used to run workflows
+    imagePullSecrets: []  # Secrets with credentials to pull images from a private registry
   rbac:
     create: false  # adds Role and RoleBinding for the above specified service account to be able to run workflows