provide option for alternate docker repository

Author: ytjohn

.circleci/config.yml

@@ -32,6 +32,9 @@ jobs:
       - run:
           name: Helm Lint Check (Enterprise)
           command: helm lint --set enterprise.enabled=true --set enterprise.license=123asd456fake
+      - run:
+          name: Helm Lint Check (st2Repository)
+          command: helm lint --set image.st2Repository="docker.example.com/st2modified"
       - run:
           name: Helm template
           command: |

templates/_helpers.tpl

@@ -23,6 +23,8 @@ community
 {{- define "imageRepository" -}}
 {{- if required "Missing context '.Values.enterprise.enabled'!" .Values.enterprise.enabled -}}
 docker.stackstorm.com
+{{- else if .Values.image.st2Repository -}}
+{{ .Values.image.st2Repository }}
 {{- else -}}
 stackstorm
 {{- end -}}

values.yaml

@@ -7,6 +7,12 @@
 image:
   # Image pull policy. Change to "IfNotPresent" when switching to stable images
   pullPolicy: Always
+  # st2 image repository. Set this to override the default ("stackstorm") or enterprise
+  # docker image repository ("docker.stackstorm.com"). Applies to all st2 containers except
+  # st2chatops and st2packs (which have their own override). This also does not impact 
+  # dependencies such as mongo or redis, which have their own helm chart settings.
+  st2Repository: ""
+
 
 ##
 ## StackStorm Enterprise settings (Optional)