環境准備
- Git: 安裝部署使用略。
- Jenkins: 2.46.2版本安裝部署略（修改jenkins執行用戶為root，省得配置權限）
- JDK: 安裝部署略。
- Maven: 安裝部署略。
- 服務器免密登陸
Jenkinsfile文件編寫
node {
def mvnHome
def workspace = pwd()
stage('Preparation') { // for display purposes // Get some code from a GitHub repository git 'http://192.168.161.118:8080/git/demo.git' // Get the Maven tool. // ** NOTE: This 'M3' Maven tool must be configured // ** in the global configuration. mvnHome = tool 'M3' } stage('Build') { // Run the maven build if (isUnix()) { sh "'${mvnHome}/bin/mvn' -Dmaven.test.failure.ignore clean package" } else { bat(/"${mvnHome}\bin\mvn" -Dmaven.test.failure.ignore clean package/) } } stage('Deploy') { sh "'/scripts/deploy.sh' ${workspace} deploy" } } Jenkinsfile文件就放在你自己的Git倉庫的更目錄! 如圖：
在Jenkins中創建Pipeline項目
如上3圖，3步，jenkins的pipeline項目創建完成。
編寫部署Shell腳本
#!/bin/bash #集群IP列表，多個用空格分開 #NODE_LIST="192.168.161.118 192.168.161.117" NODE_LIST="192.168.161.245" #應用部署到的遠程服務器目錄 REMOTE_DIR="/home/project" #需要部署的項目名稱（需和maven的project名一樣,多個用空格分開） #NEED_DEPLOY_PROJECT="user-server user-mgr info-mgr" NEED_DEPLOY_PROJECT="user-mgr" # Date/Time Veriables LOG_DATE='date "+%Y-%m-%d"' LOG_TIME='date "+%H:%M:%S"' CDATE=$(date "+%Y%m%d") CTIME=$(date "+%H%M%S") #Shell Env SHELL_NAME="deploy.sh" SHELL_DIR="/deploy/log" SHELL_LOG="${SHELL_DIR}/${SHELL_NAME}.log" #Code Env JAR_DIR="/deploy/jar" CONFIG_DIR="/deploy/config" LOCK_FILE="/tmp/deploy.lock" usage(){ echo $"Usage: $0 [projectJarPath] [ deploy | rollback ]" } init() { create_dir $SHELL_DIR; create_dir $JAR_DIR; create_dir $CONFIG_DIR; } create_dir() { if [ ! -d $1 ]; then mkdir -p $1 fi } shell_lock(){ touch ${LOCK_FILE} } shell_unlock(){ rm -f ${LOCK_FILE} } write_log(){ LOGINFO=$1 echo "`eval ${LOG_DATE}` `eval ${LOG_TIME}` : ${SHELL_NAME} : ${LOGINFO}"|tee -a ${SHELL_LOG} } #拷貝jenkins的工作空間構建的jar包到特定目錄，備份，為以后回滾等等操作 copy_jar() { TARGET_DIR=${JAR_DIR}/${CDATE}${CTIME} write_log "Copy jenkins workspace jar file to ${TARGET_DIR}" mkdir -p $TARGET_DIR for project in $NEED_DEPLOY_PROJECT;do mkdir -p $TARGET_DIR/${project} find $1 -name ${project}*.jar -exec cp {} $TARGET_DIR/${project}/ \; done } #拷貝應用的jar包到遠程服務器 scp_jar(){ SOURCE_DIR=${JAR_DIR}/${CDATE}${CTIME} write_log "Scp jar file to remote machine..." for node in $NODE_LIST;do scp -r ${SOURCE_DIR}/* $node:${REMOTE_DIR} write_log "Scp to ${node} complete." done } # 殺掉遠程服務器上正在運行的項目 cluster_node_remove(){ write_log "Kill all runing project on the cluster..." for project in $NEED_DEPLOY_PROJECT;do for node in $NODE_LIST;do pid=$(ssh $node "ps aux|grep ${project}|grep -v grep|awk '{print $2}'"|awk '{print $2}') if [ ! -n "$pid" ]; then write_log "${project} is not runing..." else ssh $node "kill -9 $pid" write_log "Killed ${project} at ${node}..." fi done done } #在遠程服務器上啟動項目 cluster_deploy(){ write_log "Up all project on the cluster..." for project in $NEED_DEPLOY_PROJECT;do for node in $NODE_LIST;do ssh $node "cd ${REMOTE_DIR}/${project};nohup java -jar ${project}*.jar >/dev/null 2>&1 &" write_log "Up ${project} on $node complete..." done done } #回滾（暫未實現） rollback(){ echo rollback } #入口 main(){ if [ -f ${LOCK_FILE} ];then write_log "Deploy is running" && exit; fi WORKSPACE=$1 DEPLOY_METHOD=$2 init; case $DEPLOY_METHOD in deploy) shell_lock; copy_jar $WORKSPACE; scp_jar; cluster_node_remove; cluster_deploy; shell_unlock; ;; rollback) shell_lock; rollback; shell_unlock; ;; *) usage; esac } main $1 $2 PS: deploy.sh放在/scripts目錄，和JenkinsFile中寫的路徑一致就好
運行看效果
部署成功。。。 
Jenkins的Console Output也都打印成功。 
瀏覽器訪問部署的應用也一切正常。完事！
PS：本實踐適合小型集群部署。（經驗有限，歡迎大神指導）