jenkins docker 发布

分享下怎么使用jenkins 发布 docker

 

首先准备docker的相关部分

docker tomcat基础镜像，这边使用centos7做系统，dockerfile如下：

#tomcat基础镜像
#我这边先把tomcat 各项配置好了，然后重新打包，传入docker，tomcat的数据目录设置在 /data/www 下  ，机器上先装了JDK
FROM centos:7
MAINTAINER www.cnblogs.com/fanpiao
 
ENV VERSION=8.5.42
ENV JAVA_HOME /usr/local/jdk
 
WORKDIR /usr/local/
ADD apache-tomcat-${VERSION}.tar.gz .
 
RUN mv apache-tomcat-${VERSION} tomcat && 
    rm -rf apache-tomcat-${VERSION}.tar.gz && 
    yum install -y unzip && 
    mkdir -p /data/www
 
#ENV PATH $PATH:/usr/local/tomcat/bin
#WORKDIR /usr/local/tomcat
#EXPOSE 8080
#CMD ["/usr/local/tomcat/bin/catalina.sh", "run"]

打包成镜像，并上传到容器仓库

docker build -t registry.cn-beij.aliyuncs.com/basis/tomcat:v7 .

#可以和我一样使用阿里云提供的容器镜像服务，免费的

docker push registry.cn-beij.aliyuncs.com/basis/tomcat:v7

上传完成后备用

 

#jenkins pipeline 脚本准备

node {
    def JAVA_HOME = tool 'jdk'
    env.PATH = "${JAVA_HOME}/bin:${env.PATH}"
    
   stage('拉取代码') {
      checkout([$class: 'SubversionSCM', additionalCredentials: [], excludedCommitMessages: '', excludedRegions: '', excludedRevprop: '', excludedUsers: '', filterChangelog: false, ignoreDirPropChanges: false, includedRegions: '', locations: [[cancelProcessOnExternalsFail: true, credentialsId: '1', depthOption: 'infinity', ignoreExternalsOption: true, local: '.', remote: 'http://svn.yin.cn/repos/${version}/project']], quietOperation: false, workspaceUpdater: [$class: 'UpdateUpdater']])
    }
   
   stage('构建') {
        if ("${Status}"== 'Deploy') {
            echo "JDK: ${JAVA_HOME}"
            sh "/usr/local/maven/bin/mvn clean install -pl $module -am -U -Dmaven.test.skip=true"
            echo '需要构建'
        } else {
            echo '不需要构建'
        }
    }
    
    def web_name = "${JOB_NAME}"
   
    stage('Status判断') {
        if ("${Status}"== 'Deploy') {
            jar_file = sh (
                script: 'find $WORKSPACE/$module/target -name *.war',
                returnStdout: true
            ).trim()
            sh 'mkdir -p $WORKSPACE/bak/$BUILD_ID'
            sh "(cp -a '${jar_file}' $WORKSPACE/bak/$BUILD_ID)"
            echo '部署'
        } else {
            jar_file = sh (
                script: 'find $WORKSPACE/bak/$Rollback_tag -name *.war',
                returnStdout: true
            ).trim()
            echo '回滚'
        }
    }

    war_file_name = sh (
        script: "(basename '${jar_file}')",
        returnStdout: true
    ).trim()
    
    config_file_name = sh (
        script: 'basename ${config_file}',
        returnStdout: true
    ).trim()
    
    old_BUILD_NUMBER = sh (
        script: "(awk 'BEGIN{print '${BUILD_NUMBER}' - 1 }')",
        returnStdout: true
    ).trim()
   
   stage('打印部署参数') {
        echo "jar_file: ${jar_file}"
        echo "war_file_name: ${war_file_name}"
        echo "config_file: ${config_file}"
        echo "config_file_name: ${config_file_name}"
        echo "job_name: ${web_name}"
        echo "old_BUILD_NUMBER: ${old_BUILD_NUMBER}"
        echo "JDK: ${JAVA_HOME}"
    }
    
    stage('构建镜像') {
        if ("${Status}"== 'Deploy') {
            REPOSITORY="registry.cn-beij.aliyuncs.com/service/${web_name}:${BUILD_NUMBER}"
            sh """
mkdir -p dockerfile
cd dockerfile
yes|cp -a $config_file/log4j2.xml .
#yes|cp -a $config_file/config.properties .
yes|cp -a ${jar_file} .

cat > Dockerfile << EOF
FROM registry.cn-beij.aliyuncs.com/basis/tomcat:v7
COPY ${war_file_name} /tmp
RUN unzip -oq /tmp/${war_file_name} -d /data/www/ && 
    rm -rf /tmp/${war_file_name} 
COPY log4j2.xml /data/www/WEB-INF/classes/log4j2.xml
#COPY config.properties /data/www/WEB-INF/classes/config.properties
EXPOSE 8080
CMD ["/usr/local/tomcat/bin/catalina.sh", "run"]
EOF
docker build -t $REPOSITORY .
docker push $REPOSITORY
docker image rm $REPOSITORY |true
    """
            }
        else {
            REPOSITORY="registry.cn-beij.aliyuncs.com/service/${web_name}:${Rollback_tag}"
            echo "无需构建镜像直接回滚"
            }        
    }
    
    stage('部署') {
        sh "/usr/bin/ansible-playbook /etc/ansible/playbook/docker-deploy.yaml -f 5 -e host=${host} -e REPOSITORY=${REPOSITORY} -e docker_name=${web_name} -e run_port=${run_port}"
    }

}

ansbile-playbook准备,ansbile ,host主机的配置请自己先配置

---
- hosts: '{{ host }}'
  remote_user: java
  gather_facts: false
  vars:
      REPOSITORY: '{{ REPOSITORY }}'
      docker_name: '{{ web_name }}'
      run_port: '{{ run_port }}'
  tasks:
    #下载镜像
    - name: "Download images"
      shell: docker pull {{ REPOSITORY }}
    #删除在运行的旧容器
    - name: "rm container"
      shell: docker rm -f {{ docker_name }} | true
    #启动容器
    - name: "run container"
      #shell: docker run -d -p {{ run_port }}:8080 -v /usr/local/jdk:/usr/local/jdk -v /etc/localtime:/etc/localtime:ro --name {{ docker_name }} {{ REPOSITORY }}
      shell: docker run -d -p {{ run_port }}:8080 
                        -v /usr/local/jdk:/usr/local/jdk 
                        -v /data/logs/Blockchain:/data/logs/Blockchain 
                        -v /data/logs/tomcatlogs/{{ docker_name }}:/usr/local/tomcat/logs 
                        -v /etc/localtime:/etc/localtime:ro 
                        --name {{ docker_name }} {{ REPOSITORY }}
      register: result
    #打印启动命令
    - name: "print information"
      debug: msg={{ result.cmd }}
~                                 

jenkisn 的配置，需要如下设置如下参数

 在流水线这里配置上刚才准备的 jenkins pipeline 脚本

 

保存后就完成了，效果如下