Tomcat : support other init containers

charts/tomcat/Chart.yaml

@@ -15,7 +15,7 @@ type: application
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
 # Versions are expected to follow Semantic Versioning (https://semver.org/)
-version: 0.1.0
+version: 0.1.1
 
 # This is the version number of the application being deployed. This version number should be
 # incremented each time you make changes to the application. Versions are not expected to

charts/tomcat/templates/deployment.yaml

@@ -56,12 +56,21 @@ spec:
               port: {{ .Values.image.containerPort }}
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
-      {{- if .Values.init.warUrl }}
+      {{- if .Values.init.enabled }}
       initContainers:
         - name: download-war
-          image: "curlimages/curl"
-          command: ["curl"]
-          args: ["-o","/data/ROOT.war","-L", {{ .Values.init.warUrl | quote }}]
+          image: {{ .Values.init.image | quote }}
+          command: {{- range .Values.init.command }}
+          - {{ . | quote }}
+          {{- end }}
+          args: {{- range .Values.init.args }} 
+          - {{ . | quote }}
+          {{- end }}
+          env: 
+            {{- range $key, $val := .Values.init.env }}
+            - name: {{ $key }}
+              value: {{ $val | quote }}
+            {{- end}}
           volumeMounts:
           - mountPath: /data
             name: {{$volumeName}}          

charts/tomcat/values.yaml

@@ -12,7 +12,12 @@ image:
   containerPort: 8080
 
 init:
-  warUrl: "https://tomcat.apache.org/tomcat-9.0-doc/appdev/sample/sample.war"
+  enabled: true
+  image: curlimages/curl
+  command: ["curl"]
+  args: ["-o", "/data/ROOT.war", "-L", "$WAR_URL"]
+  env:
+    WAR_URL: "https://tomcat.apache.org/tomcat-7.0-doc/appdev/sample/sample.war"
 
 imagePullSecrets: []
 nameOverride: ""