chore: bump Helm chart to appVersion 0.33.0 and trigger release workflow (#910)

Author: simaarfania

.github/workflows/release-helm-chart.yaml

@@ -52,3 +52,21 @@ jobs:
       ct_configfile: charts/cloudcost-exporter/ct.yaml
     secrets:
       vault_repo_secret_name: github-app
+
+  trigger-deployment-tools-update:
+    needs: release-chart
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - name: Trigger chartfile version update in deployment-tools
+        uses: grafana/shared-workflows/actions/trigger-argo-workflow@b513eb1dfd9becfa671a41e55063cdd5c0a08031 # trigger-argo-workflow/v1.2.2
+        with:
+          namespace: platform-monitoring-cd
+          workflow_template: chartfile-version-update
+          parameters: |
+            chartfile_file=ksonnet/lib/cloudcost-exporter/chartfile.yaml
+            chart_name=grafana/cloudcost-exporter
+            workflow_name=cloudcost-exporter-gh-runners
+            workflow_namespace=platform-monitoring-cd

.github/workflows/release-on-pr-merge.yml

@@ -233,6 +233,67 @@ jobs:
           tags: |
             type=raw,value=${{ needs.tag-and-goreleaser.outputs.version }}
 
+  update-helm-chart:
+    if: needs.tag-and-goreleaser.outputs.should-release == 'true'
+    needs: [check-release-label, tag-and-goreleaser, push-manifest]
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+      pull-requests: write
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - name: Install yq
+        env:
+          YQ_VERSION: v4.44.3
+          YQ_SHA256: a2c097180dd884a8d50c956ee16a9cec070f30a7947cf4ebf87d5f36213e9ed7
+        run: |
+          wget -qO /tmp/yq \
+            "https://github.com/mikefarah/yq/releases/download/${YQ_VERSION}/yq_linux_amd64"
+          echo "${YQ_SHA256}  /tmp/yq" | sha256sum -c
+          sudo mv /tmp/yq /usr/local/bin/yq
+          sudo chmod +x /usr/local/bin/yq
+
+      - name: Update Chart.yaml
+        id: update-versions
+        env:
+          APP_VERSION: ${{ needs.tag-and-goreleaser.outputs.version }}
+        run: |
+          APP_VERSION="${APP_VERSION#v}"
+
+          yq -i ".appVersion = \"${APP_VERSION}\"" charts/cloudcost-exporter/Chart.yaml
+          yq -i '.version |= (split(".") | .[2] = (.[2] | tonumber + 1 | tostring) | join("."))' charts/cloudcost-exporter/Chart.yaml
+
+          echo "app_version=${APP_VERSION}" >> "$GITHUB_OUTPUT"
+          echo "chart_version=$(yq '.version' charts/cloudcost-exporter/Chart.yaml)" >> "$GITHUB_OUTPUT"
+
+      - name: Get GitHub App token
+        id: get-github-app-token
+        uses: grafana/shared-workflows/actions/create-github-app-token@ae92934a14a48b94494dbc06d74a81d47fe08a40 # create-github-app-token/v0.2.2
+        with:
+          github_app: github-app
+
+      - name: Create pull request
+        uses: peter-evans/create-pull-request@5f6978faf089d4d20b00c7766989d076bb2fc7f1 # v8.1.1
+        with:
+          token: ${{ steps.get-github-app-token.outputs.github_token }}
+          branch: helm-chart/update-to-${{ steps.update-versions.outputs.app_version }}
+          delete-branch: true
+          base: main
+          commit-message: "Update Helm chart appVersion to ${{ steps.update-versions.outputs.app_version }}"
+          title: "Update Helm chart to appVersion ${{ steps.update-versions.outputs.app_version }}"
+          body: |
+            Automated update triggered by release `${{ needs.tag-and-goreleaser.outputs.version }}`.
+
+            - `appVersion`: updated to `${{ steps.update-versions.outputs.app_version }}`
+            - `version`: bumped to `${{ steps.update-versions.outputs.chart_version }}`
+
+            Once merged, the [Release Helm Chart](https://github.com/grafana/cloudcost-exporter/actions/workflows/release-helm-chart.yaml) workflow will publish the updated Helm chart.
+
   deploy:
     if: needs.tag-and-goreleaser.outputs.should-release == 'true'
     needs: [check-release-label, tag-and-goreleaser, push-manifest]

.github/workflows/update-helm-chart-on-release.yml

@@ -5,10 +5,10 @@ type: application
 
 # This is the chart version. This version number should be incremented each time you make changes
 # to the chart and its templates, including the app version.
-version: 1.1.2
+version: 1.1.3
 
 # This is the version of cloudcost-exporter to be deployed, which should be incremented
 # with each release.
-appVersion: "0.25.0"
+appVersion: "0.33.0"
 
 home: https://github.com/grafana/cloudcost-exporter