.gitlab-ci.yml

############################################################################
# prerequisites:
# 1. admin runner settings:
#     Runners -> set all runners as protected
# 2. project settings:
#     Repository -> add master to protected branches
#     CI/CD -> git strategy for pipelines: git clone
############################################################################

stages:
  - build
  - deploy

variables:
  APP_NAME: spring-api-seed
  APP_PORT: 9105
  APP_IP: 172.20.0.105

before_script:
  - whoami && pwd && ls -l

build:
  stage: build
  tags:
    - shell-runner
  script:
    # generate deploy related files
    - sh ./filegen.sh

    # build jar package
    - mvn clean package

    # stop and remove
    - >
      if [ "$(docker ps -a -q -f ancestor=$APP_NAME)" ] ; then
        docker stop $(docker ps -a -q -f ancestor=$APP_NAME)
        docker rm $(docker ps -a -q -f ancestor=$APP_NAME)
      fi

    # build image
    - docker build -t $APP_NAME .

deploy:
  stage: deploy
  tags:
    - shell-runner
  script:
    # - docker network create -d bridge --subnet 172.20.0.0/16 my
    - docker run --network=my --ip=$APP_IP -p $APP_PORT:$APP_PORT -d $APP_NAME
    # starts the second instance to compose a cluster behind ribbon
    - docker run --network=my --ip=172.20.0.5 -p 9005:9105 -d spring-api-seed

    # clean up useless containers/images/volumes
    - >
      if [ "$(docker ps -a -q -f status=exited)" ] ; then
        docker rm $(docker ps -a -q -f status=exited)
      fi
    - >
      if [ "$(docker images -q -f dangling=true)" ] ; then
        docker image rm $(docker images -q -f dangling=true)
      fi
    - >
      if [ "$(docker volume ls -q -f dangling=true)" ] ; then
        docker volume rm $(docker volume ls -q -f dangling=true)
      fi