image:
  name: hashicorp/packer:light
  entrypoint: [""]

variables:
  PACKER_CONFIG_DIR: $CI_PROJECT_DIR

cache:
  key: "packer-plugins"  # Define a key for Packer plugins
  paths:
    - "$PACKER_CONFIG_DIR/.packer.d"

stages:
  - validate
  - build

.parallel:
  parallel:
    matrix:
      - IMAGE:
        - flatcar-stable

validate:
  extends: .parallel
  stage: validate
  variables:
    PACKER_WORKSPACE: images
  script:
    - packer init $PACKER_WORKSPACE
    - packer fmt -check $PACKER_WORKSPACE
    - packer validate $PACKER_WORKSPACE

build-image:
  extends: .parallel
  stage: build
  script:
    - packer build $IMAGE.pkr.hcl
  rules:
    - if: $CI_COMMIT_BRANCH == "main"