Generate PR for release instead of commit to main

.github/workflows/prepare-release.yaml

@@ -0,0 +1,53 @@
+name: "Prepare the release"
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: version of the operator to release
+        required: true
+
+jobs:
+  prepare-release:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: "1.20"
+
+      - name: Generate token
+        id: generate_token
+        uses: tibdex/github-app-token@v2
+        with:
+          app_id: ${{ secrets.PUBLISH_APP_ID }}
+          private_key: ${{ secrets.PUBLISH_APP_PRIVATE_KEY }}
+          installation_retrieval_payload:  ${{ secrets.PUBLISH_APP_INSTALLATION_ID }}
+          installation_retrieval_mode: id
+
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ steps.generate_token.outputs.token }}
+
+      - name: Generate bundle
+        run: make bundle
+        env:
+          OPERATOR_VERSION: ${{inputs.version}}
+          IMG_PREFIX: ghcr.io/grafana/tempo-operator
+
+      - name: Generate CHANGELOG
+        run: make chlog-update
+        env:
+          OPERATOR_VERSION: ${{inputs.version}}
+
+      # Commit all changed files back to the repository
+      - name: Commit the changes to the repository and create PR
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git checkout -b release/v${{ inputs.version }}
+          git add -A
+          git commit -m "Prepare Release ${{inputs.version}}" --author="${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>"
+          git push -f --set-upstream origin release/v${{ inputs.version }}
+          gh pr create --title='Prepare release v${{ inputs.version }}' --assignee=${{ github.actor }} --reviewer=${{ github.actor }} --body='v${{ inputs.version }}'
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release.yaml

@@ -1,11 +1,7 @@
-name: "Prepare the release"
+name: "Release"
 on:
-  workflow_dispatch:
-    inputs:
-      version:
-        description: version of the operator to release
-        required: true
-
+  push:
+    tags: [ 'v*' ]
 
 jobs:
   release:
@@ -17,28 +13,6 @@ jobs:
         go-version: "1.20"
     - uses: actions/checkout@v4
 
-    - name: Generate bundle
-      run: make bundle
-      env:
-        OPERATOR_VERSION: ${{inputs.version}}
-        IMG_PREFIX: ghcr.io/grafana/tempo-operator
-
-    - name: Generate CHANGELOG
-      run: make chlog-update
-      env:
-        OPERATOR_VERSION: ${{inputs.version}}
-
-    # Commit all changed files back to the repository
-    - name: Commit the changes to the repository
-      run: |
-        git config user.name "github-actions[bot]"
-        git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-        git add -A
-        git commit -m "Release ${{inputs.version}}" --author="${{ github.actor }} <${{ github.actor }}@users.noreply.github.com>"
-        git push
-        git tag v${{inputs.version}}
-        git push origin v${{inputs.version}}
-
     - name: "generate release resources"
       run: make release-artifacts
       env:

RELEASE.md

@@ -3,9 +3,10 @@
 Steps to release a new version of the Tempo Operator:
 
 1. Checkout the main branch, and make sure you have the latest changes.
-1. Build, deploy and, run OpenShift tests locally against an OpenShift cluster `make e2e-openshift`. A locally installed [CRC](https://github.com/crc-org/crc) cluster can be used for testing.
 1. Go to GitHub Actions Tab, In the left sidebar, choose "Prepare Release" Workflow, then push in the "Run workflow" button , select the main branch and type the version of operator to release
-1. Push "Run workflow", this will trigger the process to generate the CHANGELOG and publish the images, and create the GitHub release
+1. Push "Run workflow", this will trigger the process to generate the CHANGELOG and generate the bundle, this will create a PR with the title "Prepare Release vx.y.z`"
+1. Once the PR is created, use that branch to build, deploy and, run OpenShift tests locally against an OpenShift cluster `make e2e-openshift`. A locally installed [CRC](https://github.com/crc-org/crc) cluster can be used for testing.
+1. Once the PR above are merged and available in the `main` branch, tag it with the desired version, prefixed with `v`: `vx.y.z` (e.g. `git tag v0.1.0 && git push origin v0.1.0`)
 
    Note: The e2e tests require MinIO (`make deploy-minio`) and opentelemetry-operator to be installed in the cluster.
 ```