add BackendConfig configuration

charts/argo-cd/README.md

@@ -183,6 +183,8 @@ Helm v3 has removed the `install-crds` hook so CRDs are now populated by files i
 | server.autoscaling.maxReplicas | Maximum number of replicas for the server [HPA](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/) | `5` |
 | server.autoscaling.targetCPUUtilizationPercentage | Average CPU utilization percentage for the server [HPA](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/) | `50` |
 | server.autoscaling.targetMemoryUtilizationPercentage | Average memory utilization percentage for the server [HPA](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/) | `50` |
+| server.backendConfig.enabled | Enable BackendConfig custom resource for Google Kubernetes Engine. | `false` |
+| server.backendConfig.spec | [BackendConfigSpec](https://cloud.google.com/kubernetes-engine/docs/concepts/backendconfig#backendconfigspec_v1beta1_cloudgooglecom) | `{}` |
 | server.certificate.additionalHosts | Certificate manager additional hosts | `[]` |
 | server.certificate.domain | Certificate manager domain | `"argocd.example.com"` |
 | server.certificate.enabled | Enables a certificate manager certificate. | `false` |

charts/argo-cd/templates/argocd-server/backendconfig.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.server.backendConfig.enabled }}
+apiVersion: cloud.google.com/v1beta1
+kind: BackendConfig
+metadata:
+  name: {{ template "argo-cd.server.fullname" . }}
+  labels:
+    app.kubernetes.io/name: {{ include "argo-cd.name" . }}-{{ .Values.server.name }}
+    helm.sh/chart: {{ include "argo-cd.chart" . }}
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+    app.kubernetes.io/part-of: argocd
+    app.kubernetes.io/component: {{ .Values.server.name }}
+spec:
+  {{- toYaml .Values.server.backendConfig.spec | nindent 2 }}
+{{- end }}

charts/argo-cd/values.yaml

@@ -561,6 +561,16 @@ server:
   clusterAdminAccess:
     enabled: true
 
+  ## Enable BackendConfig custom resource for Google Kubernetes Engine
+  backendConfig:
+    enabled: false
+    spec: {}
+  #  spec:
+  #    iap:
+  #      enabled: true
+  #      oauthclientCredentials:
+  #        secretName: argocd-iap
+
 ## Repo Server
 repoServer:
   name: repo-server