update helm chart to pass env vars and volumes (#348)

Author: rahulait

helm-chart/csi-driver/templates/csi-linode-controller.yaml

@@ -91,7 +91,7 @@ spec:
             - name: CSI_ENDPOINT
               value: unix:///var/lib/csi/sockets/pluginproxy/csi.sock
             - name: LINODE_URL
-              value: https://api.linode.com/v4
+              value: https://api.linode.com
             - name: LINODE_VOLUME_LABEL_PREFIX
               value: {{ .Values.volumeLabelPrefix | default "" | quote }}
             - name: NODE_NAME
@@ -112,6 +112,9 @@ spec:
               value: {{.Values.enableTracing | quote}}
             - name: OTEL_TRACING_PORT
               value: {{.Values.tracingPort | quote}}
+            {{- with .Values.csiLinodePlugin.env }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
           image: {{ .Values.csiLinodePlugin.image }}:{{ .Values.csiLinodePlugin.tag | default .Chart.AppVersion }}
           imagePullPolicy: {{ .Values.csiLinodePlugin.pullPolicy }}
           name: csi-linode-plugin
@@ -122,6 +125,9 @@ spec:
               name: get-linode-id
             - mountPath: /var/lib/csi/sockets/pluginproxy/
               name: socket-dir
+            {{- with .Values.csiLinodePlugin.volumeMounts }}
+            {{- toYaml . | nindent 12 }}
+            {{- end }}
       initContainers:
         - command:
             - /scripts/get-linode-id.sh
@@ -167,3 +173,6 @@ spec:
             path: /dev
             type: Directory
           name: dev
+        {{- with .Values.csiLinodePlugin.volumes }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}

helm-chart/csi-driver/templates/daemonset.yaml

@@ -42,7 +42,7 @@ spec:
         - name: CSI_ENDPOINT
           value: unix:///csi/csi.sock
         - name: LINODE_URL
-          value: https://api.linode.com/v4
+          value: https://api.linode.com
         - name: NODE_NAME
           valueFrom:
             fieldRef:
@@ -56,6 +56,9 @@ spec:
           value: {{ .Values.enableMetrics | quote}}
         - name: METRICS_PORT
           value: {{ .Values.metricsPort | quote}}
+        {{- with .Values.csiLinodePlugin.env }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
         image: {{ .Values.csiLinodePlugin.image }}:{{ .Values.csiLinodePlugin.tag | default .Chart.AppVersion }}
         imagePullPolicy: {{ .Values.csiLinodePlugin.pullPolicy }}
         name: csi-linode-plugin
@@ -79,6 +82,9 @@ spec:
           name: device-dir
         - mountPath: /tmp
           name: tmp
+        {{- with .Values.csiLinodePlugin.volumeMounts }}
+        {{- toYaml . | nindent 8 }}
+        {{- end }}
       hostNetwork: true
       initContainers:
       - command:
@@ -158,3 +164,6 @@ spec:
           path: /tmp
           type: Directory
         name: tmp
+      {{- with .Values.csiLinodePlugin.volumes }}
+      {{- toYaml . | nindent 6 }}
+      {{- end }}

helm-chart/csi-driver/values.yaml

@@ -68,6 +68,19 @@ csiLinodePlugin:
   tag:  # only set if required, defaults to .Chart.AppVersion set during release or "latest" by default
   pullPolicy: IfNotPresent
   podsMountDir: /var/lib/kubelet
+  # This section adds the ability to pass environment variables to adjust CSI defaults
+  env:
+  #  - name: EXAMPLE_ENV_VAR
+  #    value: "true"
+  # This section adds the ability to pass volumes to the DaemonSet
+  volumes:
+  #  - name: test-volume
+  #    emptyDir:
+  #      sizeLimit: 500Mi
+  # this section adds the ability to pass volumeMounts to the container
+  volumeMounts:
+  #  - mountPath: /tmp/
+  #    name: test-volume
 
 kubectl:
   image: alpine/k8s  # This needs to be alpine based and have both kubectl and curl installed.