add chart to branch

.github/workflows/release.yaml

@@ -105,6 +105,39 @@ jobs:
           gh release upload $TAG $f
         done
         echo "Charts successfully uploaded to GitHub release $TAG"
+
+    - name: Add charts to branch
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      run: |
+        version=$(echo '${{ steps.goreleaser.outputs.metadata }}' | jq -r '.version')
+        branch_version=v$(echo "$version" | cut -d'.' -f1,2)
+        charts_branch=charts/$branch_version
+        if [ ! -e ~/.gitconfig ]; then
+          git config --global user.name "aks-operator-bot"
+          git config --global user.email aks-operator@suse.de
+        fi
+        echo "Publishing helm chart in the branch $charts_branch"
+        if ! git ls-remote --exit-code --heads origin "$charts_branch"; then
+          git checkout --orphan "$charts_branch"
+          git rm -rf .
+          echo "# AKS Operator Helm Charts for $branch_version versions" > README.md
+          echo "The documentation is centralized in a unique place, checkout https://github.com/rancher/aks-operator." >> README.md
+          git checkout origin/main -- License .gitignore
+          git add README.md License .gitignore
+          git commit -m "Initial commit for $charts_branch"
+        else
+          git checkout .
+          git checkout "$charts_branch"
+        fi
+        mkdir -p charts
+        for f in $(find bin/ -name '*.tgz'); do
+          tar -xf $f -C charts/
+        done
+        git add charts/**/*
+        git commit -m "Update charts to version $version"
+        git remote set-url origin https://x-access-token:${GITHUB_TOKEN}@github.com/${{ github.repository }}.git
+        git push origin "$charts_branch"
 
   dispatch-chart-release:
     permissions: