Build and Deploy workflow (covid19india/covid19india.github.io)
The Build and Deploy workflow from covid19india/covid19india.github.io, explained and optimized by Latchkey.
CI health: C - fair
Point runs-on at Latchkey and get run de-duplication, job timeouts, SHA-pinned actions, self-healing for flaky steps, and up to 58% lower cost, applied automatically.
What it does
This is the Build and Deploy workflow from the covid19india/covid19india.github.io 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: Build and Deploy
on:
push:
branches:
- master
jobs:
build-and-deploy:
runs-on: ubuntu-latest
steps:
- name: Checkout ποΈ
uses: actions/checkout@v2 # If you're using actions/checkout@v2 you must set persist-credentials to false in most cases for the deployment to work correctly.
with:
persist-credentials: false
- name: Install and Build π§
run: |
yarn install
yarn run build
- name: Deploy π
uses: JamesIves/github-pages-deploy-action@releases/v3
with:
GITHUB_TOKEN: ${{ secrets.github_token }}
BRANCH: gh-pages # The branch the action should deploy to.
FOLDER: build # The folder the action should deploy.
CLEAN: true
The same workflow, on Latchkey
Removes redundant runs and caps runaway jobs. Added and changed lines are highlighted.
name: Build and Deploy on: push: branches: - master concurrency: group: ${{ github.workflow }}-${{ github.ref }} cancel-in-progress: true jobs: build-and-deploy: timeout-minutes: 30 runs-on: latchkey-small steps: - name: Checkout ποΈ uses: actions/checkout@v2 # If you're using actions/checkout@v2 you must set persist-credentials to false in most cases for the deployment to work correctly. with: persist-credentials: false - name: Install and Build π§ run: | yarn install yarn run build - name: Deploy π uses: JamesIves/github-pages-deploy-action@releases/v3 with: GITHUB_TOKEN: ${{ secrets.github_token }} BRANCH: gh-pages # The branch the action should deploy to. FOLDER: build # The folder the action should deploy. CLEAN: 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 useslatchkey-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 - Cancel superseded runs when a branch or PR gets a newer push.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:
- 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.