Update tools versions in GitHub workflow

This updates GitHub actions and tools used in GitHub workflows to the
latest versions.

See https://github.com/helm/charts-repo-actions-demo for reference.

This update adds support for GPG signing which will be required for the
planned addition of Loki charts. See grafana/loki/issues/2593

Signed-off-by: Reinhard Nägele <unguiculus@gmail.com>

.github/workflows/lint-test.yaml

@@ -8,23 +8,40 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
 
-      - name: Fetch history
-        run: git fetch --prune --unshallow
+      - name: Set up Helm
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.4.1
 
-      - name: Run chart-testing (lint)
-        id: lint
-        uses: helm/chart-testing-action@v1.0.0
+      # Python is required because `ct lint` runs Yamale (https://github.com/23andMe/Yamale) and
+      # yamllint (https://github.com/adrienverge/yamllint) which require Python
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.7
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.0.1
         with:
-          command: lint
-          config: ct.yaml
+          version: v3.3.0
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --config ct.yaml)
+          if [[ -n "$changed" ]]; then
+            echo "::set-output name=changed::true"
+          fi
+
+      - name: Run chart-testing (lint)
+        run: ct lint --config ct.yaml
 
       - name: Create kind cluster
-        uses: helm/kind-action@v1.0.0
-        if: steps.lint.outputs.changed == 'true'
+        uses: helm/kind-action@v1.1.0
+        if: steps.list-changed.outputs.changed == 'true'
 
       - name: Run chart-testing (install)
-        uses: helm/chart-testing-action@v1.0.0
-        with:
-          command: install
-          config: ct.yaml
+        run: ct install --config ct.yaml

.github/workflows/release.yaml

@@ -3,36 +3,35 @@ name: Release Charts
 on:
   push:
     branches:
-      - main
+      - master
 
 jobs:
   release:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v2
-
-      - name: Fetch history
-        run: git fetch --prune --unshallow
+        with:
+          fetch-depth: 0
 
       - name: Configure Git
         run: |
           git config user.name "$GITHUB_ACTOR"
           git config user.email "$GITHUB_ACTOR@users.noreply.github.com"
 
-      # See https://github.com/helm/chart-releaser-action/issues/6
       - name: Install Helm
-        run: |
-          curl -fsSLo get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
-          chmod 700 get_helm.sh
-          ./get_helm.sh
+        uses: azure/setup-helm@v1
+        with:
+          version: v3.4.1
 
       - name: Add dependency chart repos
         run: |
           helm repo add stable https://charts.helm.sh/stable
           helm repo add incubator https://charts.helm.sh/incubator
 
       - name: Run chart-releaser
-        uses: helm/chart-releaser-action@v1.0.0
+        uses: helm/chart-releaser-action@v1.1.0
+        with:
+          charts_dir: charts
         env:
           CR_TOKEN: "${{ secrets.GITHUB_TOKEN }}"

.gitignore

@@ -0,0 +1,5 @@
+/charts/*/charts
+.idea
+.vscode
+.project
+.settings