build workflow (bojand/ghz)

The build workflow from bojand/ghz, explained and optimized by Latchkey.

What it does

This is the build workflow from the bojand/ghz repository, a real project running GitHub Actions. It is shown here with attribution under its Apache-2.0 license.

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

The workflow

name: build

on:
  push:
    branches:
    - master
    paths:
    - 'go.mod'
    - 'go.sum'
    - '*.go'
    - '*/*.go'
    - '*/*/*.go'
    - '*/*/*/*.go'
    - '*/*/*/*/*.go'
    - '*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*/*.go'
  pull_request:
    branches:
    - master
    paths:
    - 'go.mod'
    - 'go.sum'
    - '*.go'
    - '*/*.go'
    - '*/*/*.go'
    - '*/*/*/*.go'
    - '*/*/*/*/*.go'
    - '*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*/*.go'
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    env:
      GO111MODULE: on
      GOLANGCI_LINT_VERSION: v1.58.0

    steps:
    - name: Check out code
      uses: actions/checkout@v5
    - name: Set up Go
      uses: actions/setup-go@v6
      with:
        go-version: 1.23.0
    - name: golangci-lint
      uses: golangci/golangci-lint-action@v2
      with:
        version: v1.58.0
    - name: Test
      run: go test -failfast -race

  build_docker_image:
    name: Build Docker image from latest tag
    runs-on: ubuntu-latest
    steps:
    - name: Build image
      run: docker build https://github.com/bojand/ghz.git
      env:
        DOCKER_BUILDKIT: '1'

The same workflow, on Latchkey

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

name: build
 
on:
  push:
    branches:
    - master
    paths:
    - 'go.mod'
    - 'go.sum'
    - '*.go'
    - '*/*.go'
    - '*/*/*.go'
    - '*/*/*/*.go'
    - '*/*/*/*/*.go'
    - '*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*/*.go'
  pull_request:
    branches:
    - master
    paths:
    - 'go.mod'
    - 'go.sum'
    - '*.go'
    - '*/*.go'
    - '*/*/*.go'
    - '*/*/*/*.go'
    - '*/*/*/*/*.go'
    - '*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*.go'
    - '*/*/*/*/*/*/*/*.go'
  workflow_dispatch:
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    runs-on: latchkey-small
    env:
      GO111MODULE: on
      GOLANGCI_LINT_VERSION: v1.58.0
 
    steps:
    - name: Check out code
      uses: actions/checkout@v5
    - name: Set up Go
      uses: actions/setup-go@v6
      with:
        go-version: 1.23.0
    - name: golangci-lint
      uses: golangci/golangci-lint-action@v2
      with:
        version: v1.58.0
    - name: Test
      run: go test -failfast -race
 
  build_docker_image:
    timeout-minutes: 30
    name: Build Docker image from latest tag
    runs-on: latchkey-small
    steps:
    - name: Build image
      run: docker build https://github.com/bojand/ghz.git
      env:
        DOCKER_BUILDKIT: '1'
 

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.

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.

What Latchkey heals here

This workflow has steps that commonly fail on transient issues (network, registries, flaky browsers). On Latchkey managed runners they are detected, retried, and self-healed instead of failing your build:

• Container pulls and builds

This workflow runs 2 jobs per trigger. On Latchkey the same minutes cost up to 58% less than GitHub-hosted, with zero queue time.

Actions used in this workflow