make image workflow (genuinetools/img)

The make image workflow from genuinetools/img, explained and optimized by Latchkey.

What it does

This is the make image workflow from the genuinetools/img repository, a real project running GitHub Actions. It is shown here with attribution under its MIT license.

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

The workflow

on: push
name: make image
jobs:
  makeimage:
    name: make image
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@master
      - name: make image
        run: make image
        shell: bash

The same workflow, on Latchkey

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

on: push
name: make image
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  makeimage:
    timeout-minutes: 30
    name: make image
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@master
      - name: make image
        run: make image
        shell: bash
 

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.
• Cancel superseded runs when a branch or PR gets a newer push.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.

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