Your first pipeline

A pipeline is a list of steps. Each step runs a command, and a step that exits with an error stops the run.

Three steps

steps:
  - name: build
    run: npm run build
  - name: test
    run: npm test
  - name: deploy
    if: branch == main
    run: ./deploy.sh

steps:
  - name: build
    run: npm run build
  - name: test
    run: npm test
  - name: deploy
    if: branch == main
    run: ./deploy.sh

steps:
  - name: build
    run: npm run build
  - name: test
    run: npm test
  - name: deploy
    if: branch == main
    run: ./deploy.sh

Conditions

The if field decides whether a step runs. You can compare the branch, the event, a label or an environment variable.

Run it locally first

Use cinder check to catch a typo before you push. It validates the file and prints the steps it would run.