Tomcat war deploy [CI > Gitlab, CD > gitops & ArgoCD]

.gitlab-ci.yml

# ----------------------------
# stages
# ----------------------------
stages:
  - build_source               # 소스 빌드 단계
  - build_push_docker_image    # 도커라이징 & 도커 이미지 push 단계
  - deploy                     # gitops push

# ----------------------------
# variables
# ----------------------------
variables:
  # -------------- variables > docker --------------
  DOCKER_HOST: tcp://docker-svc.gitlab-managed-apps:2375/
  DOCKER_DRIVER: overlay2
  DOCKER_TLS_CERTDIR: ""
  # -------------- DOCKER IMAGE --------------
  REGISTRY_IMAGE: $REGISTRY_URL/$CI_PROJECT_NAME                # DOCKER 이미지 이름
  BUILD_TAG: $CI_COMMIT_REF_NAME-$CI_PROJECT_ID-$CI_PIPELINE_ID # DOCKER 이미지 tag
  # -------------- variables > maven --------------
  MAVEN_OPTS: "-Dmaven.repo.local=$CI_PROJECT_DIR/.m2/repository -Dmaven.test.skip=true" # 메이븐 옵션
  # -------------- 추후 project ci/cd variables 로 등록 --------------
  GITOPS_REPO_URL: seulseul.com/demo/demo-gitops.git
  GITOPS_REPO_PATH: demo-2/be
  BUILD_BASE_IMAGE: maven:3.6.0-jdk-8-slim
  DOCKER_BASE_IMAGE_DEV: tomcat:9-jdk8
  DOCKER_BASE_IMAGE_PRD: tomcat:9-jre8-alpine
  #-------------------------------------------------------------------

# ----------------------------------------------
# rules
# ----------------------------------------------
.rules_template:
  rules:
    - if: $CI_COMMIT_BRANCH == "main" || $CI_COMMIT_BRANCH == "master"
      variables:
        DOCKER_BASE_IMAGE: $DOCKER_BASE_IMAGE_PRD
      when: always
    - if: $CI_COMMIT_BRANCH == "develop"  || $CI_COMMIT_BRANCH == "dev"
      variables:
        DOCKER_BASE_IMAGE: $DOCKER_BASE_IMAGE_DEV
      when: always
    - if: $CI_COMMIT_BRANCH == "main" && $CI_COMMIT_TAG != null
      variables:
        BUILD_TAG: $CI_COMMIT_TAG
        DOCKER_BASE_IMAGE: $DOCKER_BASE_IMAGE_PRD
      when: always
    - when: never

# ----------------------------------------------
# SCRIPT - Build Source
# ----------------------------------------------
build_source:
  rules:
    - !reference [ .rules_template, rules ]
  stage: build_source
  image: $BUILD_BASE_IMAGE
  script:
    - echo "------------------------------"
    - echo "Build $CI_PROJECT_PATH"
    - echo "------------------------------"
    # war 파일 생성
    - mvn clean package $MAVEN_OPTS

    - echo "------------------------------"
    - echo "$CI_PROJECT_NAME successfully build"
    - echo "------------------------------"
  artifacts:
    paths:
      - "target/*.war"
    expire_in: 5 mins

# ----------------------------------------------
# SCRIPT - Build & Push docker image
# ----------------------------------------------
build_push_docker_image:
  rules:
    - !reference [.rules_template, rules]
  stage: build_push_docker_image
  image:
    name: docker/compose:latest
  services:
    - docker:dind
  script:
    - echo "------------------------------"
    - echo "Build & Push docker image $REGISTRY_IMAGE"
    - echo "------------------------------"
    # docker image build & push in image registry
    - ls -al $CI_PROJECT_DIR/target
    - chmod +x $CI_PROJECT_DIR/script/build-image.sh
    - sh $CI_PROJECT_DIR/script/build-image.sh

    - chmod +x $CI_PROJECT_DIR/script/push-image.sh
    - sh $CI_PROJECT_DIR/script/push-image.sh

    - echo "------------------------------"
    - echo "clean stage"
    - echo "------------------------------"
    - chmod +x $CI_PROJECT_DIR/script/remove-docker-image.sh
    - sh $CI_PROJECT_DIR/script/remove-docker-image.sh
  artifacts:
    paths:
      - "target/*.war"

# ----------------------------------------------
# SCRIPT - GitOps Repository Image Change
# ----------------------------------------------
deploy:
  rules:
    - !reference [ .rules_template, rules ]
  stage: deploy
  image: alpine:latest
  before_script:
    - apk add --no-cache git curl bash coreutils
    - curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"  | bash
    - mv kustomize /usr/local/bin/
    - git remote set-url origin "https://${CI_USERNAME}:${CI_PUSH_TOKEN}@$GITOPS_REPO_URL"
    - git config --global user.email "${GITLAB_USER_EMAIL}"
    - git config --global user.name "${GITLAB_USER_LOGIN}"
  script:
    - echo "------------------------------------------------------------"
    - echo "GitOps Repository deploy"
    - echo "------------------------------------------------------------"

    # Reset to remote main branch
    - git fetch
    - git switch main
    - git reset --hard origin/main
    - cd $GITOPS_REPO_PATH
    - ls -la
    - kustomize edit set image $REGISTRY_IMAGE:$BUILD_TAG
    - cat kustomization.yaml
    - git commit -am "CI Deploy to $BUILD_TAG"
    - git push origin main

build-image.sh

#!/bin/bash
# build-image.sh

export APP_FILE=target/*.war

# case1 env 파일로 docker-compose build
#docker-compose --env-file .env_docker build

# case2
docker-compose build --build-arg DOCKER_BASE_IMAGE=${DOCKER_BASE_IMAGE}

build-push-image.sh

#!/bin/bash

# build-push-image.sh
# export PROJECT_VERSION=$(sh mvnw -q -Dexec.executable=echo -Dexec.args='${project.version}' --non-recursive exec:exec 2>/dev/null)
# export APP_FILE=./target/${CI_PROJECT_NAME}-${PROJECT_VERSION}.war
# docker-compose --env-file .env_docker build
# export APP_FILE=target/ROOT.war

echo "------------------------------"
echo "Build docker image ${REGISTRY_IMAGE}:${BUILD_TAG}"
echo "------------------------------"

docker login --username ${CI_REGISTRY_USER} --password ${CI_REGISTRY_PASSWORD} ${REGISTRY_URL}

docker build --build-arg DOCKER_BASE_IMAGE=${DOCKER_BASE_IMAGE} --build-arg BUILD_BASE_IMAGE=${BUILD_BASE_IMAGE} -t ${REGISTRY_IMAGE}:${BUILD_TAG} .

docker push ${REGISTRY_IMAGE}:${BUILD_TAG}

echo "------------------------------"
echo "Success Push Image ${REGISTRY_IMAGE}:${BUILD_TAG}"
echo "------------------------------"

docker-compose.yaml

version: "3.7"
services:
  portal:
    image: ${CI_PROJECT_NAME}
    container_name: ${CI_PROJECT_NAME}
    build:
      args:
        APP_FILE: ${APP_FILE}
        DOCKER_BASE_IMAGE: ${DOCKER_BASE_IMAGE}
      context: .
      dockerfile: Dockerfile

Dockerfile-tomcat-war

ARG DOCKER_BASE_IMAGE
#FROM $DOCKER_BASE_IMAGE

FROM tomcat:9-jre8-alpine

RUN echo $DOCKER_BASE_IMAGE

RUN rm -rf /usr/local/tomcat/webapps/*

ARG APP_FILE

#COPY ${APP_FILE} /usr/local/tomcat/webapps/ROOT.war

COPY target/ROOT.war /usr/local/tomcat/webapps/ROOT.war

ENV TZ=Asia/Seoul

EXPOSE 8080

CMD ["catalina.sh","run"]

push-image.sh

#!/bin/bash
# push-image.sh

docker login --username ${CI_REGISTRY_USER} --password ${CI_REGISTRY_PASSWORD} ${REGISTRY_URL}

docker tag ${CI_PROJECT_NAME} ${REGISTRY_IMAGE}:${BUILD_TAG}

docker push ${REGISTRY_IMAGE}:${BUILD_TAG}

echo "------------------------------"
echo "Success Push Image ${REGISTRY_IMAGE}:${BUILD_TAG}"
echo "------------------------------"

remove-docker-image.sh

#!/bin/bash

# remove-docker-image.sh

docker images -a

# project name docker image 삭제
docker rmi $(docker image ls | grep "${CI_PROJECT_NAME}" | awk '{print $1 ":" $2}')

docker images -a

echo "------------------------------"
echo "Success Clean UP"
echo "------------------------------"