Add Github workflow for releasing charts (kubernetes#1067)

Also includes:
- minor improvement to docs.
- remove duplicate imagePullPolicy from Cinder CSI chart

Author: brtkwr

.github/workflows/pr.yaml

@@ -0,0 +1,50 @@
+name: Lint and Test Charts
+
+on: pull_request
+
+jobs:
+  changes:
+    outputs:
+      charts: ${{ steps.filter.outputs.charts }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - id: filter
+        uses: dorny/[email protected]
+        with:
+          filters: |
+            charts:
+              - 'charts/**/Chart.yaml'
+              - 'charts/**/*'
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+  helm-lint-test:
+    if: ${{ needs.changes.outputs.charts == 'true' }}
+    name: Helm chart
+    needs:
+      - changes
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Fetch history
+        run: git fetch --prune --unshallow
+
+      - id: lint
+        name: Run chart-testing (lint)
+        uses: helm/[email protected]
+        with:
+          command: lint
+
+      # Only build a kind cluster if there are chart changes to test.
+      - if: steps.lint.outputs.changed == 'true'
+        name: Create kind cluster
+        uses: helm/[email protected]
+
+      - name: Run chart-testing (install)
+        uses: helm/[email protected]
+        with:
+          command: install

.github/workflows/release.yaml

@@ -0,0 +1,26 @@
+name: Release Charts
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Fetch history
+        run: git fetch --prune --unshallow
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

charts/cinder-csi-plugin/Chart.yaml

@@ -1,5 +1,10 @@
 apiVersion: v1
-appVersion: "v1.18.0"
+appVersion: latest
 description: Cinder CSI Plugin for OpenStack
 name: openstack-cinder-csi
-version: 1.1.1
+version: 1.1.2
+home: https://github.com/kubernetes/cloud-provider-openstack
+icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
+maintainers:
+  - name: brtknr
+    email: [email protected]

charts/cinder-csi-plugin/README.md

@@ -5,4 +5,17 @@ Deploys a Cinder csi provisioner to your cluster, with the appropriate storageCl
 ## How To install
 - Enable deployment of storageclasses using `storageClass.enabled`
 - Tag the retain or delete class as default class using `storageClass.delete.isDefault` in your value yaml
-- Set `storageClass.<reclaim-policy>.allowVolumeExpansion` to `true` or `false`
+- Set `storageClass.<reclaim-policy>.allowVolumeExpansion` to `true` or `false`
+
+First add the repo:
+
+    helm repo add cpo https://kubernetes.github.io/cloud-provider-openstack
+    helm repo update
+
+If you are using Helm v3:
+
+    helm install cinder-csi cpo/openstack-cinder-csi
+
+If you are using Helm v2:
+
+    helm install --name cinder-csi cpo/openstack-cinder-csi

charts/cinder-csi-plugin/templates/controllerplugin-statefulset.yaml

@@ -35,7 +35,6 @@ spec:
           env:
             - name: ADDRESS
               value: /var/lib/csi/sockets/pluginproxy/csi.sock
-          imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
               mountPath: /var/lib/csi/sockets/pluginproxy/
@@ -48,7 +47,6 @@ spec:
           env:
             - name: ADDRESS
               value: /var/lib/csi/sockets/pluginproxy/csi.sock
-          imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
               mountPath: /var/lib/csi/sockets/pluginproxy/
@@ -60,7 +58,6 @@ spec:
           env:
             - name: ADDRESS
               value: /var/lib/csi/sockets/pluginproxy/csi.sock
-          imagePullPolicy: Always
           volumeMounts:
             - mountPath: /var/lib/csi/sockets/pluginproxy/
               name: socket-dir
@@ -72,7 +69,6 @@ spec:
           env:
             - name: ADDRESS
               value: /var/lib/csi/sockets/pluginproxy/csi.sock
-          imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
               mountPath: /var/lib/csi/sockets/pluginproxy/
@@ -96,7 +92,6 @@ spec:
               value: /etc/kubernetes/cloud-config
             - name: CLUSTER_NAME
               value: kubernetes
-          imagePullPolicy: "IfNotPresent"
           volumeMounts:
             - name: socket-dir
               mountPath: /csi

charts/manila-csi-plugin/Chart.yaml

@@ -1,5 +1,10 @@
 apiVersion: v1
-appVersion: "0.9"
-description: A Helm chart for Kubernetes
+appVersion: latest
+description: Manila CSI Plugin for OpenStack
 name: openstack-manila-csi
 version: 0.1.2
+home: http://github.com/kubernetes/cloud-provider-openstack
+icon: https://github.com/kubernetes/kubernetes/blob/master/logo/logo.png
+maintainers:
+  - name: brtknr
+    email: [email protected]

charts/manila-csi-plugin/README.md

@@ -0,0 +1,14 @@
+# Manila CSI provisioner
+
+First add the repo:
+
+    helm repo add cpo https://kubernetes.github.io/cloud-provider-openstack
+    helm repo update
+
+If you are using Helm v3:
+
+    helm install manila-csi cpo/openstack-manila-csi
+
+If you are using Helm v2:
+
+    helm install --name manila-csi cpo/openstack-manila-csi

docs/using-manila-csi-plugin.md

@@ -157,7 +157,7 @@ This is the preferred way of deployment because it greatly simplifies the diffic
 
 CSI Manila Helm chart is located in `charts/manila-csi-plugin`.
 
-First, modify `values.yaml` to suite your environment, and then simply install the Helm chart with `$ helm charts/manila-csi-plugin`.
+First, modify `values.yaml` to suite your environment, and then simply install the Helm chart with `$ helm install ./charts/manila-csi-plugin`.
 
 Note that the release name generated by `helm install` may not be suitable due to their length. The chart generates object names with the release name included in them, which may cause the names to exceed 63 characters and result in chart installation failure. You may use `--name` flag to set the release name manually. See [helm installation docs](https://helm.sh/docs/helm/#helm-install) for more info. Alternatively, you may also use `nameOverride` or `fullnameOverride` variables in `values.yaml` to override the respective names.