Bump Deps workflow (google/go-containerregistry)

The Bump Deps workflow from google/go-containerregistry, explained and optimized by Latchkey.

What it does

This is the Bump Deps workflow from the google/go-containerregistry 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: Bump Deps

on:
  schedule:
  - cron: '0 6 * * 2' # weekly at 6AM Tuesday
  workflow_dispatch:

permissions:
  contents: write
  pull-requests: write

env:
  GOTOOLCHAIN: local

jobs:
  bump-deps:
    name: Bump Deps

    # Don't bother bumping deps on forks.
    if: ${{ github.repository == 'google/go-containerregistry' }}
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with:
        go-version-file: '.go-version'

    - run: ./hack/bump-deps.sh
    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v8
      with:
        title: "Bump dependencies using hack/bump-deps.sh"
        commit-message: "Bump dependencies using hack/bump-deps.sh"
        labels: dependencies
        assignees: imjasonh
        delete-branch: true

The same workflow, on Latchkey

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

name: Bump Deps
 
on:
  schedule:
  - cron: '0 6 * * 2' # weekly at 6AM Tuesday
  workflow_dispatch:
 
permissions:
  contents: write
  pull-requests: write
 
env:
  GOTOOLCHAIN: local
 
jobs:
  bump-deps:
    timeout-minutes: 30
    name: Bump Deps
 
    # Don't bother bumping deps on forks.
    if: ${{ github.repository == 'google/go-containerregistry' }}
    runs-on: latchkey-small
 
    steps:
    - uses: actions/checkout@v6
    - uses: actions/setup-go@v6
      with:
        go-version-file: '.go-version'
 
    - run: ./hack/bump-deps.sh
    - name: Create Pull Request
      uses: peter-evans/create-pull-request@v8
      with:
        title: "Bump dependencies using hack/bump-deps.sh"
        commit-message: "Bump dependencies using hack/bump-deps.sh"
        labels: dependencies
        assignees: imjasonh
        delete-branch: 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 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