Core / Build Bench workflow (frappe/frappe_docker)

The Core / Build Bench workflow from frappe/frappe_docker, explained and optimized by Latchkey.

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Source: frappe/frappe_docker.github/workflows/core-build-bench.ymlLicense MITView source

What it does

This is the Core / Build Bench workflow from the frappe/frappe_docker 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

workflow (.yml)

name: Core / Build Bench

on:
  pull_request:
    branches:
      - main
    paths:
      - images/bench/**
      - docker-bake.hcl
      - .github/workflows/core-build-bench.yml

  schedule:
    # Every day at 12:00 pm
    - cron: 0 0 * * *

  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: Setup QEMU
        uses: docker/setup-qemu-action@v4
        with:
          image: tonistiigi/binfmt:latest
          platforms: all

      - name: Setup Buildx
        uses: docker/setup-buildx-action@v4

      - name: Set Environment Variables
        run: cat example.env | grep -o '^[^#]*' >> "$GITHUB_ENV"

      - name: Get Bench Latest Version
        run: echo "LATEST_BENCH_RELEASE=$(curl -s 'https://api.github.com/repos/frappe/bench/releases/latest' | jq -r '.tag_name')" >> "$GITHUB_ENV"

      - name: Build and test
        uses: docker/bake-action@v7.3.0
        with:
          source: .
          targets: bench-test

      - name: Login
        if: ${{ github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request' }}
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Push
        if: ${{ github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request' }}
        uses: docker/bake-action@v7.3.0
        with:
          targets: bench
          push: true
          set: "*.platform=linux/amd64,linux/arm64"

The same workflow, on Latchkey

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

name: Core / Build Bench
 
on:
  pull_request:
    branches:
      - main
    paths:
      - images/bench/**
      - docker-bake.hcl
      - .github/workflows/core-build-bench.yml
 
  schedule:
    # Every day at 12:00 pm
    - cron: 0 0 * * *
 
  workflow_dispatch:
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  build:
    timeout-minutes: 30
    runs-on: latchkey-small
    steps:
      - name: Checkout
        uses: actions/checkout@v7
 
      - name: Setup QEMU
        uses: docker/setup-qemu-action@v4
        with:
          image: tonistiigi/binfmt:latest
          platforms: all
 
      - name: Setup Buildx
        uses: docker/setup-buildx-action@v4
 
      - name: Set Environment Variables
        run: cat example.env | grep -o '^[^#]*' >> "$GITHUB_ENV"
 
      - name: Get Bench Latest Version
        run: echo "LATEST_BENCH_RELEASE=$(curl -s 'https://api.github.com/repos/frappe/bench/releases/latest' | jq -r '.tag_name')" >> "$GITHUB_ENV"
 
      - name: Build and test
        uses: docker/bake-action@v7.3.0
        with:
          source: .
          targets: bench-test
 
      - name: Login
        if: ${{ github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request' }}
        uses: docker/login-action@v4
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
 
      - name: Push
        if: ${{ github.repository == 'frappe/frappe_docker' && github.event_name != 'pull_request' }}
        uses: docker/bake-action@v7.3.0
        with:
          targets: bench
          push: true
          set: "*.platform=linux/amd64,linux/arm64"

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.

4 third-party actions are referenced by a movable tag. Pin them 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 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

actions/checkout docker/setup-qemu-action docker/setup-buildx-action docker/login-action