gitlab cicd

Example of needs:optional:

build-job:
  stage: build

test-job1:
  stage: test

test-job2:
  stage: test
  rules:
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH

deploy-job:
  stage: deploy
  needs:
    - job: test-job2
      optional: true
    - job: test-job1
  environment: production

review-job:
  stage: deploy
  needs:
    - job: test-job2
      optional: true 

environment: review 

Example of rules:needs:

build-dev:
  stage: build
  rules:
    - if: $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
  script: echo "Feature branch, so building dev version..."

build-prod:
  stage: build
  rules:
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
  script: echo "Default branch, so building prod version..."

tests:
  stage: test
  rules:
    - if: $CI_COMMIT_BRANCH != $CI_DEFAULT_BRANCH
      needs: ['build-dev']
    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
      needs: ['build-prod']
  script: echo "Running dev specs by default, or prod specs when default branch..."