Ability to add env var to chart deployment

Author: tcarmet

charts/bert-e/templates/deployment.yaml

@@ -22,6 +22,7 @@ spec:
       annotations:
         checksum/settings: {{ include (print $.Template.BasePath "/settings.yaml") . | sha256sum }}
         checksum/secret: {{ include (print $.Template.BasePath "/secrets.yaml") . | sha256sum }}
+        checksum/env: {{ include (print $.Template.BasePath "/env.yaml") . | sha256sum }}
     spec:
       {{- if .Values.image.pullSecrets }}
       imagePullSecrets:
@@ -36,6 +37,10 @@ spec:
         envFrom:
         - secretRef:
             name: {{ template "fullname" $ }}
+        {{- if .Values.deployment.env }}
+        - configMapRef:
+            name: {{ template "fullname" $ }}-env
+        {{- end }}
         ports:
         - name: http
           containerPort: {{ .Values.deployment.servicePort }}

charts/bert-e/templates/env.yaml

@@ -0,0 +1,15 @@
+{{- if .Values.deployment.env }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "fullname" $ }}-env
+  labels:
+    app: {{ template "fullname" $ }}
+    chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
+    release: "{{ .Release.Name }}"
+    heritage: "{{ .Release.Service }}"
+type: Opaque
+data:
+{{ .Values.deployment.env | toYaml | indent 2 }}
+{{- end }}

charts/bert-e/values.yaml

@@ -313,6 +313,9 @@ image:
 
 ## Kubernetes deployment configuration
 deployment:
+  # Setup env vars on the deployment
+  env: {}
+    # MY_VAR: MY_VALUE
 
   ## Configure extra options for liveness and readiness probes
   livenessProbe: