Lint GitHub Actions Workflows workflow (hashicorp/go-memdb)

The Lint GitHub Actions Workflows workflow from hashicorp/go-memdb, explained and optimized by Latchkey.

What it does

This is the Lint GitHub Actions Workflows workflow from the hashicorp/go-memdb repository, a real project running GitHub Actions. It is shown here with attribution under its MPL-2.0 license.

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

The workflow

name: Lint GitHub Actions Workflows
on:
  push:
    paths:
      - .github/**

permissions:
  contents: read

jobs:
  actionlint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
      - name: "Check workflow files"
        uses: docker://docker.mirror.hashicorp.services/rhysd/actionlint:latest
        with:
          args: -color

The same workflow, on Latchkey

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

name: Lint GitHub Actions Workflows
on:
  push:
    paths:
      - .github/**
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  actionlint:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
      - name: "Check workflow files"
        uses: docker://docker.mirror.hashicorp.services/rhysd/actionlint:latest
        with:
          args: -color
 

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• Cancel superseded runs when a branch or PR gets a newer push.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