ci(generate_prs): Add custom PR title support (#504)

Author: Techassi

.github/workflows/generate_prs.yml

@@ -9,6 +9,8 @@ on:
       message:
         description: "Message to include in the generated commits:"
         required: true
+      custom-pr-title:
+        description: "Optionally a custom PR title. If unset, default will be used"
       dry-run:
         description: "Dry Run (PRs are not generated)"
         type: boolean
@@ -155,12 +157,18 @@ jobs:
       # Generate PRs
       - name: Run playbook
         if: ${{ !inputs.dry-run }}
+        env:
+          CUSTOM_PR_TITLE: ${{ inputs.custom-pr-title }}
+          GH_ACCESS_TOKEN: ${{ secrets.gh_access_token }}
         run: |
           # Funnel via JSON to ensure that values are escaped properly
-          echo '{}' | jq '{commit_hash: $ENV.GITHUB_SHA, author: $ENV.AUTHOR, reason: $ENV.REASON, base_dir: $pwd, gh_access_token: $ENV.GH_ACCESS_TOKEN}' --arg pwd "$(pwd)" > vars.json
+          # Check if custom PR title is set. If so, insert it into the extra vars
+          if [ -n "$CUSTOM_PR_TITLE" ]; then
+            echo '{}' | jq '{commit_hash: $ENV.GITHUB_SHA, author: $ENV.AUTHOR, reason: $ENV.REASON, custom_pr_title: $ENV.CUSTOM_PR_TITLE, base_dir: $pwd, gh_access_token: $ENV.GH_ACCESS_TOKEN}' --arg pwd "$(pwd)" > vars.json
+          else
+            echo '{}' | jq '{commit_hash: $ENV.GITHUB_SHA, author: $ENV.AUTHOR, reason: $ENV.REASON, base_dir: $pwd, gh_access_token: $ENV.GH_ACCESS_TOKEN}' --arg pwd "$(pwd)" > vars.json
+          fi
           ansible-playbook playbook/playbook.yaml --extra-vars "@vars.json"
-        env:
-          GH_ACCESS_TOKEN: ${{ secrets.gh_access_token }}
 
       # Do Not Generate PRs
       - name: Run playbook (dry-run)

playbook/group_vars/all/vars

@@ -19,7 +19,7 @@ commit_message: |
     Reference-to: stackabletech/operator-templating@{{ commit_short_hash }} ({{ reason }})
 
 # Title and body of created PRs
-pr_title: "chore: Update templated files ({{ commit_short_hash }})"
+pr_title: "{{ custom_pr_title | default('chore: Update templated files (' + commit_short_hash + ')') }}"
 pr_body: |
     > [!NOTE]
     > _Autogenerated PR to update templated files since the last template run up to stackabletech/operator-templating@{{ commit_hash }}._