gitlab ci yaml file with hidden keys for merging parameters example

.gitlab-ci.yaml

.artifacts: &artifacts
  artifacts:
    paths:
      - tests/build/config.log
    when: on_failure
    expire_in: "1 week"

.cache: &cache
  cache:
    paths:
      - .mocha/node_modules
      - mocha/node_modules
      - tests/node_modules

.dependencies: &dependencies
  <<: *artifacts
  <<: *cache
  stage: dependencies
  only:
    - master
    - /^mr-cache-.*$/
  script:
    - cd ${CI_PROJECT_DIR}/tests
    - ../waf/waf distclean configure ${DEVICE} ${WITH_TESTS} ${WITHOUT_TESTS} ${OPTIONS} third-party-push

.configure: &configure
  <<: *artifacts
  <<: *cache
  stage: configure
  only:
    - /^mr-.*$/
  except:
    - /^mr-cache-.*$/
  script:
    - cd ${CI_PROJECT_DIR}/tests
    - ../waf/waf distclean configure ${DEVICE} ${WITH_TESTS} ${WITHOUT_TESTS} ${OPTIONS}

.arch_linux: &arch_linux
  image: vcatechnology/arch-toolchain

Arch Linux Dependencies:
  <<: *arch_linux
  <<: *dependencies

Arch Linux Configure:
  <<: *arch_linux
  <<: *configure


.....etc... for 12 different platforms.