.gitlab-ci.yml

image: maven:3.8.5-openjdk-17

variables:
  MAVEN_OPTS: "-Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository"
  APP: ${APP_NAME}
  IMAGE_NAME: ${IMAGE_NAME}
  DOCKERHUB_REGISTRY: ${DOCKERHUB_REGISTRY}
  DOCKERHUB_USER: ${DOCKERHUB_USER}
  DOCKERHUB_PWD: ${DOCKERHUB_PWD}
  NAMESPACE: ${NAMESPACE}
  DEPLOY_ENV_URL: ${DEPLOY_ENV_URL}
  TAG_NAME: ${CI_COMMIT_SHORT_SHA}

cache:
  paths:
    - .m2/repository

stages:
  - package
  - release
  - deploy

maven-package:
  stage: package
  script:
    - 'mvn clean package -DskipTests'
  artifacts:
    paths:
      - target/*.jar
      - target/classes
    expire_in: 1 day

docker-build:
  stage: release
  image: docker:stable
  dependencies:
    - maven-package
  script:
    - docker login -u ${DOCKERHUB_USER} -p ${DOCKERHUB_PWD} ${DOCKERHUB_REGISTRY}
    - docker build -t "${DOCKERHUB_REGISTRY}/${DOCKERHUB_USER}/${IMAGE_NAME}":"${TAG_NAME}" -f ./docker/Dockerfile .
    - docker push "${DOCKERHUB_REGISTRY}/${DOCKERHUB_USER}/${IMAGE_NAME}":"${TAG_NAME}"

deploy:
  stage: deploy
  image: thisiskj/kubectl-envsubst
  before_script:
    - unset KUBECONFIG
  variables:
    CPU_LIMIT: 1000m
    MEMORY_LIMIT: 1024Mi
    CPU_REQUEST: 500m
    MEMORY_REQUEST: 512Mi
    JAVA_OPTS: -Xmx1024m -Xms512m
  script:
    - export IMAGE_PULL_SECRET=$IMAGE_NAME
    - kubectl -n ${NAMESPACE} get secret ${APP} || kubectl -n ${NAMESPACE} create secret docker-registry ${APP} --docker-server=$DOCKERHUB_REGISTRY --docker-username=$DOCKERHUB_USER --docker-password=$DOCKERHUB_PWD
    - envsubst < ./manifests/serviceAccount.yaml | kubectl apply -f -
    - envsubst < ./manifests/deployment.yaml | kubectl apply -f -
    - envsubst < ./manifests/service.yaml | kubectl apply -f -
    - envsubst < ./manifests/ingress.yaml | kubectl apply -f -