Add Helm overrides for env vars, volumes and volume mounts

templates/helm/templates/deployment.yaml

@@ -18,10 +18,12 @@ spec:
       app.kubernetes.io/instance: {{ .Release.Name }}
   template:
     metadata:
+{{- if .Values.deployment.annotations }}
       annotations:
       {{- range $key, $value := .Values.deployment.annotations }}
         {{ $key }}: {{ $value | quote }}
       {{- end }}
+{{- end }}
       labels:
         app.kubernetes.io/name: {{ include "app.name" . }}
         app.kubernetes.io/instance: {{ .Release.Name }}
@@ -104,11 +106,19 @@ spec:
           value: {{ include "aws.credentials.path" . }}
         - name: AWS_PROFILE
           value: {{ .Values.aws.credentials.profile }}
+        {{- end }}
+        {{- if .Values.deployment.extraEnvVars -}}
+          {{ toYaml .Values.deployment.extraEnvVars | nindent 8 }}
+        {{- end }}
         volumeMounts:
+        {{- if .Values.aws.credentials.secretName }}
           - name: {{ .Values.aws.credentials.secretName }}
             mountPath: {{ include "aws.credentials.secret_mount_path" . }}
             readOnly: true
         {{- end }}
+        {{- if .Values.deployment.extraVolumeMounts -}}
+          {{ toYaml .Values.deployment.extraVolumeMounts | nindent 12 }}
+        {{- end }}
         securityContext:
           allowPrivilegeEscalation: false
           privileged: false
@@ -133,9 +143,12 @@ spec:
       hostIPC: false
       hostNetwork: false
       hostPID: false
-      {{ if .Values.aws.credentials.secretName -}}
       volumes:
+      {{- if .Values.aws.credentials.secretName -}}
         - name: {{ .Values.aws.credentials.secretName }}
           secret:
             secretName: {{ .Values.aws.credentials.secretName }}
       {{ end -}}
+{{- if .Values.deployment.extraVolumes }}
+{{ toYaml .Values.deployment.extraVolumes | indent 8}}
+{{- end }}

templates/helm/values.schema.json

@@ -58,6 +58,15 @@
         },
         "priorityClassName": {
           "type": "string"
+        },
+        "extraVolumeMounts": {
+          "type": "array"
+        },
+        "extraVolumes": {
+          "type": "array"
+        },
+        "extraEnvVars": {
+          "type": "array"
         }
       },
       "required": [

templates/helm/values.yaml.tpl

@@ -28,6 +28,26 @@ deployment:
   # Which priorityClassName to set?
   # See: https://kubernetes.io/docs/concepts/scheduling-eviction/pod-priority-preemption/#pod-priority
   priorityClassName: ""
+  extraVolumes: []
+  extraVolumeMounts: []
+
+  # Additional server container environment variables
+  #
+  # You specify this manually like you would a raw deployment manifest.
+  # This means you can bind in environment variables from secrets.
+  #
+  # e.g. static environment variable:
+  #  - name: DEMO_GREETING
+  #    value: "Hello from the environment"
+  #
+  # e.g. secret environment variable:
+  # - name: USERNAME
+  #   valueFrom:
+  #     secretKeyRef:
+  #       name: mysecret
+  #       key: username
+  extraEnvVars: []
+
 
 # If "installScope: cluster" then these labels will be applied to ClusterRole
 role: