Added release workflows with chart-releaser (#5)

Following the automated release process, this time for the helm chart. 
This patch includes some order on the workflows  plus the addition
of the chart-releaser action.

The steps to release can be found in the RELEASE.md file.

Co-authored-by: Jonathan Gonzalez V <[email protected]>

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/continuous-delivery.yml

@@ -1,41 +1,9 @@
 name: continuous-delivery
 
 on:
-  push:
   pull_request:
 
 jobs:
-  linter:
-    runs-on: ubuntu-20.04
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
-      - name: Set up Helm
-        uses: azure/setup-helm@v1
-        with:
-          version: v3.4.0
-
-      - uses: actions/setup-python@v2
-        with:
-          python-version: 3.7
-
-      - name: Set up chart-testing
-        uses: helm/[email protected]
-
-      - name: Run chart-testing (list-changed)
-        id: list-changed
-        run: |
-          changed=$(ct list-changed --target-branch=main)
-          if [[ -n "$changed" ]]; then
-            echo "::set-output name=changed::true"
-          fi
-
-      - name: Run chart-testing (lint)
-        run: ct lint --target-branch=main
-
   install_deploy:
     runs-on: ubuntu-20.04
     steps:
@@ -55,7 +23,7 @@ jobs:
       - name: Deploy using helm chart
         run: |
           helm upgrade --install cnp --namespace postgresql-operator-system \
-          --create-namespace cloud-native-postgresql --wait
+          --create-namespace charts/cloud-native-postgresql --wait
 
       - name: Install kubectl
         uses: azure/setup-kubectl@v1

.github/workflows/lint.yml

@@ -0,0 +1,36 @@
+name: linter
+
+on:
+  push:
+
+jobs:
+  linter:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.4.0
+
+      - uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Set up chart-testing
+        uses: helm/[email protected]
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --target-branch=main)
+          if [[ -n "$changed" ]]; then
+            echo "::set-output name=changed::true"
+          fi
+
+      - name: Run chart-testing (lint)
+        run: ct lint --target-branch=main

.github/workflows/release-pr.yml

@@ -0,0 +1,31 @@
+# Create a PR for a release when a commit is pushed on a release/v* branch
+
+name: release-pr
+
+on:
+  push:
+    branches:
+    - release/v*
+
+jobs:
+  pull-request:
+    runs-on: ubuntu-20.04
+    steps:
+      -
+        name: Checkout
+        uses: actions/[email protected]
+      -
+        name: Get tag
+        run: |
+          echo "TAG=${GITHUB_REF##*/}" >> $GITHUB_ENV
+      -
+        name: Pull Request
+        id: open-pr
+        uses: repo-sync/[email protected]
+        with:
+          destination_branch: "main"
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          pr_body: "Automated PR. Will trigger the ${{ env.TAG }} release when approved."
+          pr_label: release
+          pr_title: "Release ${{ env.TAG }}"
+

.github/workflows/release-publish.yml

@@ -0,0 +1,30 @@
+name: release-publish
+
+on:
+  push:
+    tags:
+      - v*
+
+jobs:
+  release:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Configure Git
+        run: |
+          git config user.name "$GITHUB_ACTOR"
+          git config user.email "[email protected]"
+
+      - name: Install Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.4.0
+
+      - name: Run chart-releaser
+        uses: helm/[email protected]
+        env:
+          CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/release-tag.yml

@@ -0,0 +1,28 @@
+# Create a tag when a PR on a release/v* branch is merged
+
+name: release-tag
+
+on:
+  pull_request:
+    types:
+      - closed
+    branches:
+      - main
+
+jobs:
+  tag:
+    runs-on: ubuntu-20.04
+    steps:
+      -
+        name: Checkout
+        uses: actions/[email protected]
+      -
+        name: Create tag
+        if: github.event.pull_request.merged == true && startsWith(${{ github.head_ref }}, "release/v")
+        uses: christophebedard/[email protected]
+        with:
+          token: ${{ secrets.REPO_GHA_PAT }}
+          version_regex: '^Version tag to ([0-9]+\.[0-9]+\.[0-9]+)'
+          version_tag_prefix: v
+          dry_run: false
+

README.md

@@ -6,15 +6,25 @@ designed by EnterpriseDB to manage PostgreSQL workloads on any
 supported Kubernetes cluster running in private, public, or hybrid cloud
 environments.
 
-## Deployment
+## Deployment using the latest release
+
+```console
+helm repo add cnp https://enterprisedb.github.io/cloud-native-postgresql-helm/
+helm upgrade --install cnp \
+  --namespace postgresql-operator-system \
+  --create-namespace \
+  cnp/cloud-native-postgresql
+```
+
+## Deployment using local chart
 
 To deploy the operator from sources you can run the following command:
 
 ```console
 helm upgrade --install cnp \
   --namespace postgresql-operator-system \
   --create-namespace \
-  cloud-native-postgresql
+  charts/cloud-native-postgresql
 ```
 
 ## Copyright

RELEASE.md

@@ -0,0 +1,19 @@
+# Cloud Native PostgreSQL release procedure
+
+**Steps:**
+
+The following steps assume version 0.2.0 as the one to be released. Alter the
+instructions accordingly.
+
+1. Create branch `release/v0.2.0`
+1. Approve the PR that is automatically generated.
+1. The tag 0.2.0 will be created when the PR is merged.
+1. The helm chart will be automatically added to the chart index.
+
+To check the chart was updated correctly, run:
+```bash
+helm repo add cnp https://enterprisedb.github.io/cloud-native-postgresql-helm/
+# or "helm repo update" if already added
+helm search repo cnp
+```
+and you should see the latest version available.

cloud-native-postgresql/Chart.yaml → charts/cloud-native-postgresql/Chart.yaml

@@ -33,3 +33,6 @@ keywords:
   - postgres
   - database
 home: https://www.enterprisedb.com/products/postgresql-on-kubernetes-ha-clusters-k8s-containers-scalable
+maintainers:
+  - name: phisco
+    email: [email protected]

cloud-native-postgresql/values.yaml → charts/cloud-native-postgresql/values.yaml

@@ -39,13 +39,13 @@ webhook:
 config:
   create: true
   data: {}
-    #INHERITED_ANNOTATIONS: categories
-    #INHERITED_LABELS: environment, workload, app
-    #EDB_LICENSE_KEY: <YOUR_EDB_LICENSE_KEY_HERE>
+    # INHERITED_ANNOTATIONS: categories
+    # INHERITED_LABELS: environment, workload, app
+    # EDB_LICENSE_KEY: <YOUR_EDB_LICENSE_KEY_HERE>
   name: postgresql-operator-controller-manager-config
 
 # -- Additinal arguments to be added to the operator's args list
-additionalArgs:  []
+additionalArgs: []
 
 serviceAccount:
   # -- Specifies whether a service account should be created