Dont use hardcoed postgres image for initcontainer (#2579)

Signed-off-by: daniel.terry <daniel.terry@madepeople.se>
Co-authored-by: daniel.terry <daniel.terry@madepeople.se>
Co-authored-by: Willy Lulciuc <willy@datakin.com>

chart/templates/_helpers.tpl

@@ -45,6 +45,15 @@ Return the proper Marquez web image name
 {{- include "common.images.image" (dict "imageRoot" .Values.web.image "global" .Values.global) -}}
 {{- end -}}
 
+{{/*
+Return the proper Postgresql image name for the wait-for-db initContainer
+*/}}
+{{- define "marquez.wait-for-db.image" -}}
+{{- if .Values.postgresql.enabled -}}
+  {{- include "common.images.image" (dict "imageRoot" .Values.postgresql.image "global" .Values.global) -}}
+{{- end -}}
+{{- end -}}
+
 {{/*
 Get the secret name
 */}}

chart/templates/marquez/deployment.yaml

@@ -28,7 +28,7 @@ spec:
       # This init container is for avoiding CrashLoopback errors in the Marquez container because the PostgreSQL container is not ready
       initContainers:
         - name: wait-for-db
-          image: postgres:12.1
+          image: {{ include "marquez.wait-for-db.image" . }}
           imagePullPolicy: IfNotPresent
           command:
             - /bin/bash