Tests (dco) workflow (middyjs/middy)

The Tests (dco) workflow from middyjs/middy, explained and optimized by Latchkey.

CI health: A - excellent

Point runs-on at Latchkey and get job timeouts, self-healing for flaky steps, and up to 58% lower cost, applied automatically.

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Source: middyjs/middy.github/workflows/test-dco.ymlLicense MITView source

What it does

This is the Tests (dco) workflow from the middyjs/middy 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: Tests (dco)

on:
  pull_request:

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  dco:
    name: Tests (dco)
    runs-on: ubuntu-latest
    steps:
      - name: Harden runner
        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
        with:
          egress-policy: audit
          disable-telemetry: true
      - name: Check for Developer Certificate of Origin (DCO) compiance
        uses: KineticCafe/actions-dco@1da04282bbf757dab7d92a5c8535dbfb8113da5c # v3.1.0

The same workflow, on Latchkey

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

name: Tests (dco)
 
on:
  pull_request:
 
permissions:
  contents: read
 
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
jobs:
  dco:
    timeout-minutes: 30
    name: Tests (dco)
    runs-on: latchkey-small
    steps:
      - name: Harden runner
        uses: step-security/harden-runner@9af89fc71515a100421586dfdb3dc9c984fbf411 # v2.19.4
        with:
          egress-policy: audit
          disable-telemetry: true
      - name: Check for Developer Certificate of Origin (DCO) compiance
        uses: KineticCafe/actions-dco@1da04282bbf757dab7d92a5c8535dbfb8113da5c # v3.1.0

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.

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

step-security/harden-runner