.auto-deploy:
  image: "registry.gitlab.com/gitlab-org/cluster-integration/auto-deploy-image:v0.8.3"

review:
  extends: .auto-deploy
  stage: review
  script:
    - auto-deploy check_kube_domain
    - auto-deploy download_chart
    - auto-deploy ensure_namespace
    - auto-deploy initialize_tiller
    - auto-deploy create_secret
    - auto-deploy deploy
    - auto-deploy persist_environment_url
  environment:
    name: review/$CI_COMMIT_REF_NAME
    url: http://$CI_PROJECT_ID-$CI_ENVIRONMENT_SLUG.$KUBE_INGRESS_BASE_DOMAIN
    on_stop: stop_review
  artifacts:
    paths: [environment_url.txt]
  only:
    refs:
      - branches
      - tags
    kubernetes: active
  except:
    refs:
      - master
    variables:
      - $REVIEW_DISABLED

stop_review:
  extends: .auto-deploy
  stage: cleanup
  variables:
    GIT_STRATEGY: none
  script:
    - auto-deploy initialize_tiller
    - auto-deploy delete
  environment:
    name: review/$CI_COMMIT_REF_NAME
    action: stop
  when: manual
  allow_failure: true
  only:
    refs:
      - branches
      - tags
    kubernetes: active
  except:
    refs:
      - master
    variables:
      - $REVIEW_DISABLED

# Staging deploys are disabled by default since
# continuous deployment to production is enabled by default
# If you prefer to automatically deploy to staging and
# only manually promote to production, enable this job by setting
# STAGING_ENABLED.

staging:
  extends: .auto-deploy
  stage: staging
  script:
    - auto-deploy check_kube_domain
    - auto-deploy download_chart
    - auto-deploy ensure_namespace
    - auto-deploy initialize_tiller
    - auto-deploy create_secret
    - auto-deploy deploy
  environment:
    name: staging
    url: http://$CI_PROJECT_PATH_SLUG-staging.$KUBE_INGRESS_BASE_DOMAIN
  only:
    refs:
      - master
    kubernetes: active
    variables:
      - $STAGING_ENABLED

# Canaries are disabled by default, but if you want them,
# and know what the downsides are, you can enable this by setting
# CANARY_ENABLED.

canary:
  extends: .auto-deploy
  stage: canary
  script:
    - auto-deploy check_kube_domain
    - auto-deploy download_chart
    - auto-deploy ensure_namespace
    - auto-deploy initialize_tiller
    - auto-deploy create_secret
    - auto-deploy deploy canary
  environment:
    name: production
    url: http://$CI_PROJECT_PATH_SLUG.$KUBE_INGRESS_BASE_DOMAIN
  when: manual
  only:
    refs:
      - master
    kubernetes: active
    variables:
      - $CANARY_ENABLED

.production: &production_template
  extends: .auto-deploy
  stage: production
  script:
    - auto-deploy check_kube_domain
    - auto-deploy download_chart
    - auto-deploy ensure_namespace
    - auto-deploy initialize_tiller
    - auto-deploy create_secret
    - auto-deploy deploy
    - auto-deploy delete canary
    - auto-deploy delete rollout
    - auto-deploy persist_environment_url
  environment:
    name: production
    url: http://$CI_PROJECT_PATH_SLUG.$KUBE_INGRESS_BASE_DOMAIN
  artifacts:
    paths: [environment_url.txt]

production:
  <<: *production_template
  only:
    refs:
      - master
    kubernetes: active
  except:
    variables:
      - $STAGING_ENABLED
      - $CANARY_ENABLED
      - $INCREMENTAL_ROLLOUT_ENABLED
      - $INCREMENTAL_ROLLOUT_MODE

production_manual:
  <<: *production_template
  when: manual
  allow_failure: false
  only:
    refs:
      - master
    kubernetes: active
    variables:
      - $STAGING_ENABLED
      - $CANARY_ENABLED
  except:
    variables:
      - $INCREMENTAL_ROLLOUT_ENABLED
      - $INCREMENTAL_ROLLOUT_MODE

# This job implements incremental rollout on for every push to `master`.

.rollout: &rollout_template
  extends: .auto-deploy
  script:
    - auto-deploy check_kube_domain
    - auto-deploy download_chart
    - auto-deploy ensure_namespace
    - auto-deploy initialize_tiller
    - auto-deploy create_secret
    - auto-deploy deploy rollout $ROLLOUT_PERCENTAGE
    - auto-deploy scale stable $((100-ROLLOUT_PERCENTAGE))
    - auto-deploy delete canary
    - auto-deploy persist_environment_url
  environment:
    name: production
    url: http://$CI_PROJECT_PATH_SLUG.$KUBE_INGRESS_BASE_DOMAIN
  artifacts:
    paths: [environment_url.txt]

.manual_rollout_template: &manual_rollout_template
  <<: *rollout_template
  stage: production
  when: manual
  # This selectors are backward compatible mode with $INCREMENTAL_ROLLOUT_ENABLED (before 11.4)
  only:
    refs:
      - master
    kubernetes: active
    variables:
      - $INCREMENTAL_ROLLOUT_MODE == "manual"
      - $INCREMENTAL_ROLLOUT_ENABLED
  except:
    variables:
      - $INCREMENTAL_ROLLOUT_MODE == "timed"

.timed_rollout_template: &timed_rollout_template
  <<: *rollout_template
  when: delayed
  start_in: 5 minutes
  only:
    refs:
      - master
    kubernetes: active
    variables:
      - $INCREMENTAL_ROLLOUT_MODE == "timed"

timed rollout 10%:
  <<: *timed_rollout_template
  stage: incremental rollout 10%
  variables:
    ROLLOUT_PERCENTAGE: 10

timed rollout 25%:
  <<: *timed_rollout_template
  stage: incremental rollout 25%
  variables:
    ROLLOUT_PERCENTAGE: 25

timed rollout 50%:
  <<: *timed_rollout_template
  stage: incremental rollout 50%
  variables:
    ROLLOUT_PERCENTAGE: 50

timed rollout 100%:
  <<: *timed_rollout_template
  <<: *production_template
  stage: incremental rollout 100%
  variables:
    ROLLOUT_PERCENTAGE: 100

rollout 10%:
  <<: *manual_rollout_template
  variables:
    ROLLOUT_PERCENTAGE: 10

rollout 25%:
  <<: *manual_rollout_template
  variables:
    ROLLOUT_PERCENTAGE: 25

rollout 50%:
  <<: *manual_rollout_template
  variables:
    ROLLOUT_PERCENTAGE: 50

rollout 100%:
  <<: *manual_rollout_template
  <<: *production_template
  allow_failure: false