feat: add GitHub Actions workflow for linting and testing Helm charts

Signed-off-by: oujonny <jonny@immerda.ch>

Author: oujonny

.github/workflows/helm-testing.yaml

@@ -0,0 +1,47 @@
+name: Lint and Test Charts
+
+on: pull_request
+
+permissions: {}
+
+jobs:
+  lint-test:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v5.0.0
+        with:
+          fetch-depth: 0
+
+      - name: Set up Helm
+        uses: azure/setup-helm@v4.3.1
+
+      - uses: actions/setup-python@v6.0.0
+        with:
+          python-version: '3.x'
+          check-latest: true
+
+      - name: Set up chart-testing
+        uses: helm/chart-testing-action@v2.8.0
+
+      - name: Run chart-testing (list-changed)
+        id: list-changed
+        run: |
+          changed=$(ct list-changed --target-branch ${{ github.event.repository.default_branch }})
+          if [[ -n "$changed" ]]; then
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Run chart-testing (lint)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct lint --target-branch ${{ github.event.repository.default_branch }}
+
+      - name: Create kind cluster
+        if: steps.list-changed.outputs.changed == 'true'
+        uses: helm/kind-action@v1.12.0
+
+      - name: Run chart-testing (install)
+        if: steps.list-changed.outputs.changed == 'true'
+        run: ct install --target-branch ${{ github.event.repository.default_branch }}

charts/kube-ovn-v2/values.yaml

@@ -931,3 +931,6 @@ extraObjects: []
 #           }
 #         ]
 #       }
+
+# TODO: remove only temorary
+trigger: true