Pull Request Labeler workflow (kr8s-org/kr8s)

The Pull Request Labeler workflow from kr8s-org/kr8s, explained and optimized by Latchkey.

What it does

This is the Pull Request Labeler workflow from the kr8s-org/kr8s repository, a real project running GitHub Actions. It is shown here with attribution under its BSD-3-Clause license.

Below, Latchkey shows a faster, safer version produced by its optimization engine.

The workflow

name: "Pull Request Labeler"
on:
- pull_request_target

jobs:
  triage:
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
    - uses: actions/labeler@v4
      name: File Path Labeler
    - uses: TimonVS/pr-labeler-action@v5
      name: Conventional Commits Labeler
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
        configuration-path: .github/conventional-commits-labeler.yml

The same workflow, on Latchkey

Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.

name: "Pull Request Labeler"
on:
- pull_request_target
 
jobs:
  triage:
    timeout-minutes: 30
    permissions:
      contents: read
      pull-requests: write
    runs-on: latchkey-small
    steps:
    - uses: actions/labeler@v4
      name: File Path Labeler
    - uses: TimonVS/pr-labeler-action@v5
      name: Conventional Commits Labeler
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
        configuration-path: .github/conventional-commits-labeler.yml
 

What changed

• Run on Latchkey managed runners with one line (runs-on), which apply the fixes below automatically and self-heal transient failures. This example uses latchkey-small; pick the runner size that fits the job.
• Add a job timeout so a hung step cannot burn hours of runner time.

1 third-party action is referenced by a movable tag. Pin it to the commit SHA (Latchkey resolves and applies this automatically) so a repointed tag cannot change what runs.

This workflow runs 1 job per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow