scheduler workflow (kkdai/youtube)

The scheduler workflow from kkdai/youtube, explained and optimized by Latchkey.

What it does

This is the scheduler workflow from the kkdai/youtube 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

name: scheduler

on:
  schedule:
    - cron: '0 0 */1 * *'

jobs:
  test:
    strategy:
      matrix:
        platform: [ubuntu-24.04]
        go-version: [1.26.x]
    runs-on: ${{ matrix.platform }}
    name: integration tests
    env:
      GOBIN: /tmp/.bin
    steps:
      - name: Check out code into the Go module directory.
        uses: actions/checkout@v3

      - name: Install Go.
        uses: actions/setup-go@v4
        with:
          go-version: ${{ matrix.go-version }}

      - name: Install ffmpeg
        run: |
          sudo apt-get update
          sudo apt-get install ffmpeg

      - name: Run tests
        run: make test-integration

      - name: Archive artifacts
        uses: actions/upload-artifact@v4
        with:
          name: output
          path: output

The same workflow, on Latchkey

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

name: scheduler
 
on:
  schedule:
    - cron: '0 0 */1 * *'
 
jobs:
  test:
    timeout-minutes: 30
    strategy:
      matrix:
        platform: [ubuntu-24.04]
        go-version: [1.26.x]
    runs-on: ${{ matrix.platform }}
    name: integration tests
    env:
      GOBIN: /tmp/.bin
    steps:
      - name: Check out code into the Go module directory.
        uses: actions/checkout@v3
 
      - name: Install Go.
        uses: actions/setup-go@v4
        with:
          go-version: ${{ matrix.go-version }}
 
      - name: Install ffmpeg
        run: |
          sudo apt-get update
          sudo apt-get install ffmpeg
 
      - name: Run tests
        run: make test-integration
 
      - name: Archive artifacts
        uses: actions/upload-artifact@v4
        with:
          name: output
          path: output
 

What changed

• Add a job timeout so a hung step cannot burn hours of runner time.

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:

• Dependency installs

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