# Explanation on the scripts:
# https://gitlab.com/gitlab-examples/kubernetes-deploy/blob/master/README.md
image: registry.gitlab.com/gitlab-examples/kubernetes-deploy

variables:
  # Application deployment domain
  KUBE_DOMAIN: domain.example.com

stages:
  - build
  - test
  - review
  - staging
  - canary
  - production
  - cleanup

build:
  stage: build
  script:
    - command build
  only:
    - branches

canary:
  stage: canary
  script:
    - command canary
  environment:
    name: production
    url: http://$CI_PROJECT_NAME.$KUBE_DOMAIN
  when: manual
  only:
    - master

production:
  stage: production
  script:
    - command deploy
  environment:
    name: production
    url: http://$CI_PROJECT_NAME.$KUBE_DOMAIN
  when: manual
  only:
    - master

staging:
  stage: staging
  script:
    - command deploy
  environment:
    name: staging
    url: http://$CI_PROJECT_NAME-staging.$KUBE_DOMAIN
  only:
    - master

review:
  stage: review
  script:
    - command deploy
  environment:
    name: review/$CI_COMMIT_REF_NAME
    url: http://$CI_PROJECT_NAME-$CI_ENVIRONMENT_SLUG.$KUBE_DOMAIN
    on_stop: stop_review
  only:
    - branches
  except:
    - master

stop_review:
  stage: cleanup
  variables:
    GIT_STRATEGY: none
  script:
    - command destroy
  environment:
    name: review/$CI_COMMIT_REF_NAME
    action: stop
  when: manual
  allow_failure: true
  only:
    - branches
  except:
    - master