[stable/prestashop] Add global registry option (#8448)

* [stable/prestashop] Add global registry option

Signed-off-by: Carlos Rodriguez Hernandez <crhernandez@bitnami.com>

* Update deps

Signed-off-by: Carlos Rodriguez Hernandez <crhernandez@bitnami.com>

stable/prestashop/Chart.yaml

@@ -1,5 +1,5 @@
 name: prestashop
-version: 3.1.4
+version: 3.2.0
 appVersion: 1.7.4-3
 description: A popular open source ecommerce solution. Professional tools are easily
   accessible to increase online sales including instant guest checkout, abandoned

stable/prestashop/README.md

@@ -49,6 +49,7 @@ The following table lists the configurable parameters of the PrestaShop chart an
 
 |               Parameter               |                                         Description                                          |                         Default                         |
 |---------------------------------------|----------------------------------------------------------------------------------------------|---------------------------------------------------------|
+| `global.imageRegistry`                | Global Docker image registry                                                                 | `nil`                                                   |
 | `image.registry`                      | PrestaShop image registry                                                                    | `docker.io`                                             |
 | `image.repository`                    | PrestaShop image name                                                                        | `bitnami/prestashop`                                    |
 | `image.tag`                           | PrestaShop image tag                                                                         | `{VERSION}`                                             |

stable/prestashop/requirements.lock

@@ -1,6 +1,6 @@
 dependencies:
 - name: mariadb
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 5.0.8
+  version: 5.2.0
 digest: sha256:0593b73b2163fbbbae061de1aa2b8280d43f8a423a91e1c7375c0b6c86784b1c
-generated: 2018-10-04T13:28:11.27444912Z
+generated: 2018-10-16T08:50:26.245376+02:00

stable/prestashop/templates/_helpers.tpl

@@ -43,3 +43,26 @@ If not using ClusterIP, or if a host or LoadBalancerIP is not defined, the value
 {{- $host := index .Values (printf "%sHost" .Chart.Name) | default "" -}}
 {{- default (include "prestashop.serviceIP" .) $host -}}
 {{- end -}}
+
+{{/*
+Return the proper Prestashop image name
+*/}}
+{{- define "prestashop.image" -}}
+{{- $registryName := .Values.image.registry -}}
+{{- $repositoryName := .Values.image.repository -}}
+{{- $tag := .Values.image.tag | toString -}}
+{{/*
+Helm 2.11 supports the assignment of a value to a variable defined in a different scope,
+but Helm 2.9 and 2.10 doesn't support it, so we need to implement this if-else logic.
+Also, we can't use a single if because lazy evaluation is not an option
+*/}}
+{{- if .Values.global }}
+    {{- if .Values.global.imageRegistry }}
+        {{- printf "%s/%s:%s" .Values.global.imageRegistry $repositoryName $tag -}}
+    {{- else -}}
+        {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+    {{- end -}}
+{{- else -}}
+    {{- printf "%s/%s:%s" $registryName $repositoryName $tag -}}
+{{- end -}}
+{{- end -}}

stable/prestashop/templates/deployment.yaml

@@ -28,7 +28,7 @@ spec:
       {{- end }}
       containers:
       - name: {{ template "prestashop.fullname" . }}
-        image: "{{ .Values.image.registry }}/{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+        image: {{ template "prestashop.image" . }}
         imagePullPolicy: {{ .Values.image.pullPolicy | quote }}
         env:
         - name: ALLOW_EMPTY_PASSWORD

stable/prestashop/values.yaml

@@ -1,3 +1,9 @@
+## Global Docker image registry
+## Please, note that this will override the image registry for all the images, including dependencies, configured to use the global value
+##
+# global:
+#   imageRegistry:
+
 ## Bitnami PrestaShop image version
 ## ref: https://hub.docker.com/r/bitnami/prestashop/tags/
 ##
@@ -94,6 +100,8 @@ externalDatabase:
 ##
 ## MariaDB chart configuration
 ##
+## https://github.com/helm/charts/blob/master/stable/mariadb/values.yaml
+##
 mariadb:
   ## Whether to deploy a mariadb server to satisfy the applications database requirements. To use an external database set this to false and configure the externalDatabase parameters
   enabled: true