image: edbizarro/gitlab-ci-pipeline-php:7.3-alpine

stages:
  - prepare
  - testing
  - build
  - cleanup

variables:
  APP_IMAGE_NAME: "$CI_REGISTRY_IMAGE/app"
  WEB_IMAGE_NAME: "$CI_REGISTRY_IMAGE/web"
  DB_IMAGE_NAME: "$CI_REGISTRY_IMAGE/db"

#######################
# Shared script steps #
#######################

# GitLab do not supports bash syntax in the "variables" definitions,
# so we use custom step to define all necessary environment variables
.defineVars: &defineVars |-
  export VERSION="${CI_COMMIT_TAG:-${CI_COMMIT_REF_NAME}-${CI_COMMIT_SHORT_SHA}}"

  export APP_VERSIONED_IMAGE_NAME="$APP_IMAGE_NAME:$VERSION"
  export APP_LATEST_IMAGE_NAME="$APP_IMAGE_NAME:latest"

  export WEB_VERSIONED_IMAGE_NAME="$WEB_IMAGE_NAME:$VERSION"
  export WEB_LATEST_IMAGE_NAME="$WEB_IMAGE_NAME:latest"

  export DB_VERSIONED_IMAGE_NAME="$DB_IMAGE_NAME:$VERSION"
  export DB_LATEST_IMAGE_NAME="$DB_IMAGE_NAME:latest"

.dockerLogin: &dockerLogin |-
  docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY

###################
# Steps to extend #
###################

.vendorCache:
  cache:
    key: backend-deps
    paths:
      - vendor
    policy: pull

#################
# Prepare stage #
#################

Precache dependencies:
  stage: prepare
  extends:
    - .vendorCache
  cache:
    policy: pull-push
  script:
    - composer install --ignore-platform-reqs

#################
# Testing stage #
#################

PHP-CS-Fixer:
  stage: testing
  extends:
    - .vendorCache
  script:
    - vendor/bin/php-cs-fixer fix -v --dry-run

Codeception:
  stage: testing
  extends:
    - .vendorCache
  services:
    - name: redis:4.0.10-alpine
      alias: redis
    - name: bitnami/mariadb:10.3.20-debian-9-r4
      alias: db
  variables:
    # App config
    DB_HOST: "db"
    DB_DATABASE: "ely_accounts_test"
    DB_USER: "ely_accounts_tester"
    DB_PASSWORD: "ely_accounts_tester_password"
    REDIS_HOST: "redis"
    REDIS_PORT: "6379"
    # MariaDB config
    ALLOW_EMPTY_PASSWORD: "yes"
    MARIADB_DATABASE: "ely_accounts_test"
    MARIADB_USER: "ely_accounts_tester"
    MARIADB_PASSWORD: "ely_accounts_tester_password"
  before_script:
    # We don't count code coverage yet, so xdebug can be removed
    - sudo rm /usr/local/etc/php/conf.d/docker-php-ext-xdebug.ini
  script:
    - php yii rbac/generate
    - ./docker/php/wait-for-it.sh "${DB_HOST}:3306" -s -t 0 -- "php yii migrate/up --interactive=0"
    - vendor/bin/codecept run

###############
# Build stage #
###############

Docker images:
  stage: build
  image: docker:19.03.2
  before_script:
    - *defineVars
    - *dockerLogin
    - sed -i -e "s/{{PLACE_VERSION_HERE}}/$VERSION/g" common/config/config.php
  script:
    # Download previous images to use them as a cache
    - docker pull "$APP_LATEST_IMAGE_NAME" || true
    - docker pull "$WEB_LATEST_IMAGE_NAME" || true
    - docker pull "$DB_LATEST_IMAGE_NAME" || true
    # Build images
    - >
      docker build
      --pull
      --target app
      --build-arg "build_env=prod"
      --cache-from "$APP_LATEST_IMAGE_NAME"
      -t "$APP_VERSIONED_IMAGE_NAME"
      -t "$APP_LATEST_IMAGE_NAME" .
    - >
      docker build
      --pull
      --target web
      --build-arg "build_env=prod"
      --cache-from "$APP_VERSIONED_IMAGE_NAME"
      --cache-from "$WEB_LATEST_IMAGE_NAME"
      -t "$WEB_VERSIONED_IMAGE_NAME"
      -t "$WEB_LATEST_IMAGE_NAME" .
    - >
      docker build
      --pull
      --target db
      --build-arg "build_env=prod"
      --cache-from "$APP_VERSIONED_IMAGE_NAME"
      --cache-from "$WEB_VERSIONED_IMAGE_NAME"
      --cache-from "$DB_LATEST_IMAGE_NAME"
      -t "$DB_VERSIONED_IMAGE_NAME"
      -t "$DB_LATEST_IMAGE_NAME" .
    # Push images to the registry
    - docker push $APP_VERSIONED_IMAGE_NAME
    - docker push $APP_LATEST_IMAGE_NAME
    - docker push $WEB_VERSIONED_IMAGE_NAME
    - docker push $WEB_LATEST_IMAGE_NAME
    - docker push $DB_VERSIONED_IMAGE_NAME
    - docker push $DB_LATEST_IMAGE_NAME
  only:
    - master
    - tags

#################
# Cleanup stage #
#################

Remove Docker images:
  stage: cleanup
  image: docker:19.03.2
  variables:
    GIT_STRATEGY: none
  before_script:
    - *defineVars
  script:
    - docker rmi "$APP_LATEST_IMAGE_NAME" "$APP_VERSIONED_IMAGE_NAME" || true
    - docker rmi "$WEB_LATEST_IMAGE_NAME" "$WEB_VERSIONED_IMAGE_NAME" || true
    - docker rmi "$DB_LATEST_IMAGE_NAME" "$DB_VERSIONED_IMAGE_NAME" || true
  when: always
  only:
    - master
    - tags