add extraEnv helm value for app settings

helm-charts/kubeinvaders/README.md

@@ -19,3 +19,4 @@ helm install kubeinvaders --set-string target_namespace="namespace1\,namespace2"
 | image.tag           | Specify tag of KubeInvaders to deploy  |
 | ingress.hostName    | URL used for ingress                   |
 | target_namespace    | namespaces to take under control       |
+| extraEnv            | Extra environment variables for pod    |

helm-charts/kubeinvaders/templates/deployment.yaml

@@ -22,15 +22,18 @@ spec:
       serviceAccountName: kubeinvaders
       containers:
         - env:
-          {{ if .Values.ingress.enabled }}
+          {{- if .Values.ingress.enabled }}
           - name: ENDPOINT
             value: {{ required ".Values.ingress.hostName is required if Ingress are enabled" .Values.ingress.hostName }}
-          {{ else }}
+          {{- else }}
           - name: ENDPOINT
             value: {{ required ".Values.route_host is required if Ingress are disabled" .Values.route_host }}
-          {{ end }}
+          {{- end }}
           - name: NAMESPACE
             value: {{ .Values.target_namespace }}
+          {{- if .Values.extraEnv }}
+{{ toYaml .Values.extraEnv | indent 10 }}
+          {{- end }}
           name: {{ .Chart.Name }}
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}

helm-charts/kubeinvaders/values.yaml

@@ -39,13 +39,23 @@ ingress:
   enabled: true
   annotations:
     nginx.ingress.kubernetes.io/ssl-redirect: "true"
-  hostName: "" 
+  hostName: ""
   tls: {}
 
 # Use route_host only if ingress is disabled
 route_host: ""
 
 legacyIngress: false
+
+extraEnv: []
+# extraEnv:
+#   - name: ALIENPROXIMITY
+#     value: "10"
+#   - name: HITSLIMIT
+#     value: "1"
+#   - name: UPDATETIME
+#     value: "0.5"
+
 resources: {}
 nodeSelector: {}
 tolerations: []