从gitlab自动部署

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把source推到gitlab上后，自动部署到docker

通知

通过gitlab的webhook功能，当有source push到gitlab上，自动触发回调，然后执行shell。
可以使用这个自作的webhook接受程序
https://hub.docker.com/r/ebusiness/webhook

shell

git

用git clone或者pull最新source。

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PRIVATE_KEY=/id_rsa
WORK_ROOT=/java
APP_PATH=${WORK_ROOT}/app-api
if [[ ! -d ${APP_PATH} ]]; then
    docker run --rm -v ${PRIVATE_KEY}:/root/id_rsa -v ${WORK_ROOT}:/git alpine/git clone --single-branch --branch development git@gitlab.com:app-api.git --config core.sshCommand="ssh -i/root/id_rsa -F /dev/null -oStrictHostKeyChecking=no"
else
    docker run --rm -v ${PRIVATE_KEY}:/root/id_rsa -v ${WORK_ROOT}:/git alpine/git pull
fi

build

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docker run --rm  -v /var/run/docker.sock:/var/run/docker.sock -v gradle-cache:/root/.gradle -v ${APP_PATH}:/work -w /work openjdk:11 sh -c '
    ls -la
    sh ./gradlew clean
    sh ./gradlew bootBuildImage --imageName=app-api --pullPolicy IF_NOT_PRESENT
'

手动分层

上面使用的是spring boot的plugin自带的bootBuildImage来构建的image，当然构建的时候是用到了spring boot的分层的，每次构建时会尽可能的变更最少的层。但是因为上面用到的构建image，以及运行image都是固定的，如果用户想使用自己的image的话，需要手动构建

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FROM amazoncorretto:17-alpine as builder
WORKDIR application
ARG JAR_FILE=build/libs/*.jar
COPY ${JAR_FILE} application.jar
RUN java -Djarmode=layertools -jar application.jar extract
FROM amazoncorretto:17-alpine
WORKDIR application
COPY --from=builder application/dependencies/ ./
COPY --from=builder application/spring-boot-loader/ ./
COPY --from=builder application/snapshot-dependencies/ ./
COPY --from=builder application/application/ ./
ENTRYPOINT ["java", "org.springframework.boot.loader.JarLauncher"]

先build程序，然后build镜像

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./gradlew bootJar
docker build .

deploy

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LOG_PATH=/logs
DOCKER_NAME=app-api
PROFILE=dev
docker rm -f ${DOCKER_NAME}
docker run -d --restart=always --name ${DOCKER_NAME} \
  --network my-nw \
  -v ${LOG_PATH}:/logs \
  -e "TZ=Asia/Tokyo" \
  -e "SPRING_PROFILES_ACTIVE=dev" \
  -e "JAVA_TOOL_OPTIONS=-DSPECIFY_LOG_PATH=/logs -Xmx256M -Xms256M" app-api

定期清理垃圾image

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docker rmi $(docker images -f "dangling=true" -q)