.drone.yml

# -----------------------------------------------------------------------------
# SETTINGS
# -----------------------------------------------------------------------------

# Drone matrix: Additional ENV vars for substitution - http://docs.drone.io/matrix-builds/
# Will be evaluated BEFORE the YAML is parsed, ONLY strings allowed, NO substitutions ${XXX} here.

matrix:
  include:
    - BUILD_ENV: all
      # The name of the k8s namespaces that these pipelines will target.
      K8S_DEPLOY_NS_DEV: customer-product-dev
      K8S_DEPLOY_NS_STAGING: customer-product-staging
      K8S_DEPLOY_NS_PROD: customer-product-prod

# YAML Configuration anchors - https://learnxinyminutes.com/docs/yaml/
# Will be evaluated WHILE the YAML is parsed, any valid yaml allowed, substitutions ${XXX} allowed.

alias:
  # The image will be tagged with this, pushed to gcr and referenced with this key in the k8s deployment
  - &IMAGE_DEPLOY_TAG ${DRONE_COMMIT_SHA}

  # The full uniquely tagged image names
  - &IMAGE_RUNNER_ID ${DRONE_REPO,,}-${BUILD_ENV}:${DRONE_COMMIT_SHA}
  - &IMAGE_BUILDER_ID ${DRONE_REPO,,}-${BUILD_ENV}:${DRONE_COMMIT_SHA}-builder

  # Defines which branches will trigger a docker image push our Google Cloud Registry (tags are always published)
  - &GCR_PUBLISH_BRANCHES [dev, staging, main, mr/redis-cache]

  # Docker registry publish default settings
  - &GCR_REGISTRY_SETTINGS
    image: plugins/gcr
    repo: a3cloud-192413/${DRONE_REPO,,}-${BUILD_ENV}
    registry: eu.gcr.io
    secrets:
      - source: AAA_GCR_SERVICE_ACCOUNT_JSON
        target: google_credentials
    volumes: # mount needed to push the already build container
      - /var/run/docker.sock:/var/run/docker.sock
    # As this is a multistage build, we define here what we are going to push
    target: runner
    # local short-time-cache: don't cleanup any image layers after pushing
    purge: false
    # force compress of docker build context
    compress: true

  # Deployment default settings
  - &K8S_DEPLOY_SETTINGS
    image: eu.gcr.io/a3cloud-192413/aw/aaa-drone-kubernetes:latest
    pull: true
    secrets:
    - source: AAA_K8S_SERVER
      target: KUBERNETES_SERVER
    - source: AAA_K8S_SERVICE_ACCOUNT_CRT
      target: KUBERNETES_CERT
    - source: AAA_K8S_SERVICE_ACCOUNT_TOKEN
      target: KUBERNETES_TOKEN
    - source: AAA_GCR_SERVICE_ACCOUNT_JSON
      target: GCR_SERVICE_ACCOUNT
    deployment: webapp
    repo: eu.gcr.io/a3cloud-192413/${DRONE_REPO,,}-${BUILD_ENV}
    container: [webapp]
    tag: *IMAGE_DEPLOY_TAG
    gcr_service_account_email: drone-ci-a3cloud@a3cloud-192413.iam.gserviceaccount.com
    mgmt_repo: https://git.allaboutapps.at/scm/aw/a3cloud-mgmt.git
    mgmt_git_email: infrastructure+drone@allaboutapps.at

  # Which build events should trigger the main pipeline (defaults to all)
  - &BUILD_EVENTS [push, pull_request, tag]

  # Pipeline merge helper: only execute if build event received
  - &WHEN_BUILD_EVENT
    when:
      event: *BUILD_EVENTS

  - &DOCKER_BUILD_SETTINGS_RUNNER
    image: docker:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      IMAGE_TAG: *IMAGE_RUNNER_ID
    commands:
      - |
        docker build -t $${IMAGE_TAG} . --build-arg NEXT_PUBLIC_COMMIT_HASH=${DRONE_BRANCH}_${DRONE_COMMIT_SHA:0:10}

  - &DOCKER_BUILD_SETTINGS_BUILDER
    image: docker:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    environment:
      IMAGE_TAG: *IMAGE_BUILDER_ID
    commands:
      - |
        docker build --target builder -t $${IMAGE_TAG} . --build-arg NEXT_PUBLIC_COMMIT_HASH=${DRONE_BRANCH}_${DRONE_COMMIT_SHA:0:10}

# The actual pipeline building our product
pipeline:

  # ---------------------------------------------------------------------------
  # PRE BUILD
  # ---------------------------------------------------------------------------

  "docker build (target builder)":
    group: pre-build
    <<: *DOCKER_BUILD_SETTINGS_BUILDER
    when:
      event: *BUILD_EVENTS

  # ---------------------------------------------------------------------------
  # BUILD
  # ---------------------------------------------------------------------------

  "docker build (target runner)":
    group: build
    <<: *DOCKER_BUILD_SETTINGS_RUNNER
    when:
      event: *BUILD_EVENTS

  # ---------------------------------------------------------------------------
  # CHECK
  # ---------------------------------------------------------------------------

  "lint":
    group: check
    image: *IMAGE_BUILDER_ID
    commands:
      - cd /app
      - yarn lint
    when:
      event: *BUILD_EVENTS

  # ---------------------------------------------------------------------------
  # TEST
  # ---------------------------------------------------------------------------

  "test":
    group: test
    image: *IMAGE_BUILDER_ID
    commands:
      - cd /app
      - yarn test:ci
    when:
      event: *BUILD_EVENTS

  # ---------------------------------------------------------------------------
  # PUBLISH
  # ---------------------------------------------------------------------------

  # Built a branch? Push to cloud registry
  "publish ${DRONE_BRANCH}_${DRONE_COMMIT_SHA:0:10}":
    group: publish
    <<: *GCR_REGISTRY_SETTINGS
    tags:
      - build_${DRONE_BUILD_NUMBER}
      - ${DRONE_BRANCH/\//-}_${DRONE_COMMIT_SHA:0:10}
      - *IMAGE_DEPLOY_TAG
      - latest
      - ${DRONE_BRANCH/\//-}
      - '${DRONE_COMMIT_SHA:0:10}'
    when:
      branch: *GCR_PUBLISH_BRANCHES
      event: *BUILD_EVENTS

  # Built a tag? Push to cloud registry
  "publish tag_${DRONE_COMMIT_SHA:0:10}":
    group: publish
    <<: *GCR_REGISTRY_SETTINGS
    tags:
      - build_${DRONE_BUILD_NUMBER}
      - tag_${DRONE_COMMIT_SHA:0:10}
      - *IMAGE_DEPLOY_TAG
      - latest
      - ${DRONE_TAG}
      - ${DRONE_COMMIT_SHA:0:10}
    when:
      event: tag

  # ---------------------------------------------------------------------------
  # DEPLOYMENT
  # ---------------------------------------------------------------------------

  # -----------------
  # DEPLOYMENT DEV --
  # -----------------

  # autodeploy if it hits the branch
  "deploy ${DRONE_COMMIT_SHA:0:10} to ${K8S_DEPLOY_NS_DEV} (auto)":
    <<: *K8S_DEPLOY_SETTINGS
    namespace: ${K8S_DEPLOY_NS_DEV}
    mgmt_deployment_yaml: namespaces/${K8S_DEPLOY_NS_DEV}/webapp.deployment.yaml
    when:
      branch: dev
      event: *WHEN_BUILD_EVENT

  # promote dev through "drone deploy <repo> <build> <env>" or "woodpecker-cli deploy <repo> <build> <env>"
  "deploy ${DRONE_COMMIT_SHA:0:10} to ${K8S_DEPLOY_NS_DEV} (promote)":
    <<: *K8S_DEPLOY_SETTINGS
    namespace: ${K8S_DEPLOY_NS_DEV}
    mgmt_deployment_yaml: namespaces/${K8S_DEPLOY_NS_DEV}/webapp.deployment.yaml
    when:
      environment: ${BUILD_ENV}
      event: deployment

  # ---------------------
  # DEPLOYMENT STAGING --
  # ---------------------

  # autodeploy if it hits the branch
  "deploy ${DRONE_COMMIT_SHA:0:10} to ${K8S_DEPLOY_NS_STAGING} (auto)":
    <<: *K8S_DEPLOY_SETTINGS
    namespace: ${K8S_DEPLOY_NS_STAGING}
    mgmt_deployment_yaml: namespaces/${K8S_DEPLOY_NS_STAGING}/webapp.deployment.yaml
    when:
      branch: staging
      event: *WHEN_BUILD_EVENT

  # promote staging through "drone deploy <repo> <build> <env>" or "woodpecker-cli deploy <repo> <build> <env>"
  "deploy ${DRONE_COMMIT_SHA:0:10} to ${K8S_DEPLOY_NS_STAGING} (promote)":
    <<: *K8S_DEPLOY_SETTINGS
    namespace: ${K8S_DEPLOY_NS_STAGING}
    mgmt_deployment_yaml: namespaces/${K8S_DEPLOY_NS_STAGING}/webapp.deployment.yaml
    when:
      environment: ${BUILD_ENV}
      event: deployment

  # ---------------------
  # DEPLOYMENT PROD --
  # ---------------------

  # promote main through "drone deploy <repo> <build> <env>" or "woodpecker-cli deploy <repo> <build> <env>"
  "deploy ${DRONE_COMMIT_SHA:0:10} to ${K8S_DEPLOY_NS_PROD} (promote)":
    <<: *K8S_DEPLOY_SETTINGS
    namespace: ${K8S_DEPLOY_NS_PROD}
    mgmt_deployment_yaml: namespaces/${K8S_DEPLOY_NS_PROD}/webapp.deployment.yaml
    when:
      environment: ${BUILD_ENV}
      event: deployment

# Long living services where the startup order does not matter (otherwise use detach: true)
services:

  # ---------------------------------------------------------------------------
  # SERVICES
  # ---------------------------------------------------------------------------

  "env":
    image: alpine
    commands:
      - "env | sort"