feat: upgrade gitlab to 13.7.2 and add new bigbang features

Summary

Upgrade gitlab to app version 13.7.2 chart version 4.7.2. Also add feature support for sso, database, and object storage.

chart/templates/gitlab/helmrelease.yaml

@@ -44,8 +44,10 @@ spec:
       enabled: {{ .Values.istio.enabled }}
     monitoring:
       enabled: {{ .Values.monitoring.enabled }}
-{{- if ( include "imagePullSecret" . ) }}
-    ## values for image pull secrets
+    {{- if .Values.addons.gitlab.database.host }}
+    postgresql:
+      install: false
+    {{- end }}
     redis:
       metrics:
         image:
@@ -55,6 +57,11 @@ spec:
         pullSecrets: 
         - private-registry
     registry:
+      {{- if .Values.addons.gitlab.objectstorage.endpoint }}
+      storage:
+        secret: gitlab-object-storage
+        key: registry
+      {{- end }}
       image:
         pullSecrets:
         - name: private-registry
@@ -65,6 +72,13 @@ spec:
           - name: private-registry
     gitlab:
       task-runner:
+        {{- if .Values.addons.gitlab.objectstorage.endpoint }}
+        backups:
+          objectStorage:
+            config:
+              secret: gitlab-object-storage
+              key: backups
+        {{- end }}
         image:
           pullSecrets:
           - name: private-registry
@@ -98,16 +112,143 @@ spec:
     minio:
       pullSecrets:
       - name: private-registry
-    {{- end }}
     global:
       hosts:
-        domain: code.{{ .Values.hostname }}
+        domain: {{ .Values.hostname }}
         gitlab:
-          name: code.{{ .Values.hostname }}
+          name: {{ .Values.addons.gitlab.hostnames.gitlab }} 
         registry:
-          name: registry.{{ .Values.hostname }}
-{{- if ( include "imagePullSecret" . ) }}
-      ## values for image pull secrets
+          name: {{ .Values.addons.gitlab.hostnames.registry }}
+      {{- if .Values.addons.gitlab.objectstorage.endpoint }}
+      minio:
+        enabled: false
+      {{- end }}
+      {{- if .Values.addons.gitlab.database.host }}
+      psql:
+        host: {{ .Values.addons.gitlab.database.host }}
+        port: {{ .Values.addons.gitlab.database.port }}
+        username: {{ .Values.addons.gitlab.database.username }}
+        database: {{ .Values.addons.gitlab.database.database }}
+        password:
+          secret: gitlab-database
+          key: PGPASSWORD
+      {{- end }}
+      {{- if .Values.addons.gitlab.objectstorage.endpoint }}
+      registry:
+        {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+        bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-registry
+        {{- else }}
+        bucket: gitlab-registry
+        {{- end }}
+      {{- end }}
+      {{- if or .Values.addons.gitlab.sso.enabled .Values.addons.gitlab.objectstorage.endpoint }}
+      appConfig:
+      {{- end }}
+        {{- if .Values.addons.gitlab.sso.enabled }}
+        omniauth:
+          enabled: true
+          {{- $global := .Values.addons.gitlab.values.global | default dict }}
+          {{- $appConfig := $global.appConfig | default dict }}
+          {{- $omniauth := $appConfig.omniauth | default dict }}
+          {{- if hasKey $omniauth "allowSingleSignOn" }}
+          allowSingleSignOn: {{ .Values.addons.gitlab.values.global.appConfig.omniauth.allowSingleSignOn }}
+          {{- else }}
+          allowSingleSignOn: ['openid_connect']
+          {{- end }}
+          {{- if hasKey $omniauth "blockAutoCreatedUsers" }}
+          blockAutoCreatedUsers: {{ .Values.addons.gitlab.values.global.appConfig.omniauth.blockAutoCreatedUsers }}
+          {{- else }}
+          blockAutoCreatedUsers: false
+          {{- end }}
+          providers:
+              - secret: gitlab-sso-provider
+                key: gitlab-sso.json
+        {{- end }}
+        {{- if .Values.addons.gitlab.objectstorage.endpoint }}
+        lfs:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-lfs
+          {{- else }}
+          bucket: gitlab-lfs
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        artifacts:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-artifacts
+          {{- else }}
+          bucket: gitlab-artifacts
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        uploads:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-uploads
+          {{- else }}
+          bucket: gitlab-uploads
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        packages:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-packages
+          {{- else }}
+          bucket: gitlab-packages
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        externalDiffs:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-mr-diffs
+          {{- else }}
+          bucket: gitlab-mr-diffs
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        terraformState:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-terraform-state
+          {{- else }}
+          bucket: gitlab-terraform-state
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        dependencyProxy:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-dependency-proxy
+          {{- else }}
+          bucket: gitlab-dependency-proxy
+          {{- end }}
+          connection: 
+            secret: gitlab-object-storage
+            key: rails
+        pseudonymizer:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-pseudo
+          {{- else }}
+          bucket: gitlab-pseudo
+          {{- end }}
+          connection:
+            secret: gitlab-object-storage
+            key: rails
+        backups:
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          bucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-backup
+          {{- else }}
+          bucket: gitlab-backup
+          {{- end }}
+          {{- if .Values.addons.gitlab.objectstorage.bucketPrefix }}
+          tmpBucket: {{ .Values.addons.gitlab.objectstorage.bucketPrefix }}-gitlab-backup-tmp
+          {{- else }}
+          tmpBucket: gitlab-backup-tmp
+          {{- end }}
+        {{- end }}
       certificates:
         image:
           pullSecrets:
@@ -116,7 +257,6 @@ spec:
         image:
           pullSecrets:
           - name: private-registry
-      {{ end }}
 
   {{- if or .Values.gatekeeper.enabled .Values.istio.enabled .Values.monitoring.enabled }}
   dependsOn: