gitlab_build_and_deploy.yaml

image: docker:latest
services:
  - docker:dind

variables:
  DOCKER_DRIVER: overlay

stages:
  - build
  - package
  - deploy

gradle-build:
  image: openjdk:8-jdk
  stage: build
  script: "./gradlew bootJar"
  artifacts:
    paths:
      - build/libs/*.jar

docker-build:
  stage: package
  script:
  - docker build -t registry.gitlab.com/<name>/<project> .
  - docker login -u gitlab-ci-token -p $CI_BUILD_TOKEN registry.gitlab.com
  - docker push registry.gitlab.com/<name>/<project>

deploy-prod:
  stage: deploy
  image: gitlab/dind:latest
  only:
    - "master"
  environment: production
  services:
    - docker:dind
  before_script:
    - mkdir -p ~/.ssh
    - echo "$DEPLOYER_KEY" | tr -d '\r' > ~/.ssh/id_rsa
    - chmod 600 ~/.ssh/id_rsa
    - eval "$(ssh-agent -s)"
    - ssh-add ~/.ssh/id_rsa
    - ssh-keyscan -H $DEPLOYER_HOST >> ~/.ssh/known_hosts
  script:
    - ssh $DEPLOYER_USER@$DEPLOYER_HOST "docker-compose -f /opt/api/docker-compose.yaml pull &&  docker-compose -f /opt/api/docker-compose.yaml up -d"