Labeler workflow (theislab/ncem)
The Labeler workflow from theislab/ncem, explained and optimized by Latchkey.
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the Labeler workflow from the theislab/ncem 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: Labeler
on:
push:
branches:
- main
- master
jobs:
labeler:
runs-on: ubuntu-latest
steps:
- name: Check out the repository
uses: actions/checkout@v2.3.3
- name: Run Labeler
uses: crazy-max/ghaction-github-labeler@v3.1.1
with:
skip-delete: true
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Labeler on: push: branches: - main - master concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: labeler: timeout-minutes: 30 runs-on: latchkey-small steps: - name: Check out the repository uses: actions/checkout@v2.3.3 - name: Run Labeler uses: crazy-max/ghaction-github-labeler@v3.1.1 with: skip-delete: true
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 useslatchkey-small; pick the runner size that fits the job. - Cancel superseded runs when a branch or PR gets a newer push.
- 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.