Matrix jobs

Matrix jobs

Matrix jobs execute the same script with different inputs

Inputs are specified using environment variables

Matrix jobs are defined using parallel

The matrix keyword under parallel defines variables sets

Hands-On 1/

Cross-compile Go for multiple architectures

1. Extend template to support GOOS and GOARCH:

    .build-go:
      #...
      parallel:
        matrix:
        - GOOS: linux
          GOARCH: amd64
        - GOOS: linux
          GOARCH: arm64
      script:
      - go build -o hello-${GOOS}-${GOARCH} . \
            -ldflags "-X main.Version=${CI_COMMIT_REF_NAME} -X 'main.Author=${AUTHOR}'"
   

Hands-On 2/2

1. Update the test job:

    test:
      #...
      script:
      - ./hello-linux-amd64
   

2. Check pipeline

(See new .gitlab-ci.yml)