ci: Add helm chart checks (#63)

Author: nikitabelonogov

.github/workflows/check_helm.yml

@@ -0,0 +1,34 @@
+name: Check Helm Chart
+
+on:
+  pull_request_target:
+    branches:
+      - master
+
+jobs:
+  helm-template:
+    name: Run helm template
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
+    steps:
+      - uses: hmarr/[email protected]
+
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Run helm template and lint
+        env:
+          BASE_SHA: ${{ github.event.pull_request.base.sha }}
+          HEAD_SHA: ${{ github.event.pull_request.head.sha }}
+        run: |
+          CHANGED_CHARTS=$(git diff --name-only "${BASE_SHA}" "${HEAD_SHA}" | grep '^charts/' | cut -d/ -f1-2 | sort -u)
+          echo "Changed charts:"
+          echo "$CHANGED_CHARTS"
+          for chart in $CHANGED_CHARTS; do
+            echo "Rendering template for $chart"
+            helm dependency update "$chart"
+            helm template "$chart"
+            helm lint "$chart"
+          done