使用Jenkins、Docker、GitLab 部署SpringBoot項目

安裝Jenkins

下載 Jenkins RPM包 

wget https://pkg.jenkins.io/redhat/jenkins-2.197-1.1.noarch.rpm複製代碼

安裝 Jenkins

rpm -ivh jenkins-2.197-1.1.noarch.rpm複製代碼

啓動Jenkins 

sudo service jenkins start複製代碼

解鎖

這裏提示解鎖Jenkins，複製 /Users/Shared/Jenkins/Home/secrets/initialAdminPassword文件內容到頁面

cat /Users/Shared/Jenkins/Home/secrets/initialAdminPassword
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sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://pvo5vonp.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
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設置用戶

解鎖成功後，跳轉到設置用戶頁面

這裏設置 admin / admin

安裝默認插件

而後提示安裝插件，選擇默認的安裝，等待安裝完成。有些插件可能安裝失敗，提示要求升級最新版本Jenkins，升級成功後能夠安裝成功。

全局配置

點擊 >系統設置>全局工具配置

配置maven、JDK、Docker、git

項目地址：gitee.com/yimingkeji/…

Dockerfile內容：

#FROM openjdk:8-jdk-alpine
FROM hub.c.163.com/dwyane/openjdk:8
VOLUME /tmp
ADD docker-springboot-1.0-SNAPSHOT.jar app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
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而後上傳到本身的git地址

使用Jenkins部署項目到Docker

在jenkins頁面添加自由風格的軟件項目

在源碼管理裏添加git倉庫和用戶名、密碼配置，而且選擇代碼分支（這裏是master）

配置JenkinsSSH免密訪問GitLab

ssh-keygen -t rsa -C "youmail@mail.com" -b 4096

cat ~/.ssh/id_rsa.pub,複製添加到GitLab的SSH祕鑰

設置Jenkins啓動爲root，解決拉代碼權限問題

vim /etc/sysconfig/jenkins，修改JENKINS_USER="root"

在構建步驟中，添加2個步驟

1.頂級maven 選擇maven版本（上面的全局配置中配的maven），添加maven打包命令

clean install -Dmaven.test.skip=true
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2. 執行shell 添加shell：

/opt/apache-maven-3.2.5/bin/mvn docker:build
echo "當前docker 鏡像："
docker images | grep dockerspringboot
echo "啓動容器----->"
docker run -p 8001:8001 -d dockerspringboot
echo "啓動服務成功！"
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執行構建並啓動服務

上面配置完成後，到Jenkins主頁，選擇配置好的項目，菜單中點擊當即構建

看到左邊菜單裏有執行的進度條，點進去後會看到執行日誌

構建中 在工做空間 /Users/yangzhenlong/.jenkins/workspace/docker-springboot 中
 > /usr/bin/git rev-parse --is-inside-work-tree # timeout=10
...
 > /usr/bin/git checkout -f de05bbef05fae5ade0c79ce1d49154723d84fa88
Commit message: "修改dockerfile" #git中最後的提交記錄
 > /usr/bin/git rev-list --no-walk 330c170c5829017d00942d7301834c2a196a29ac # timeout=10
[docker-springboot] $ /Users/xxxx/apache-maven-3.5.4/bin/mvn -s /Users/xxx/apache-maven-3.5.4/conf/settings.xml -gs /Users/xxx/apache-maven-3.5.4/conf/settings.xml clean install -Dmaven.test.skip=true # 執行maven腳本
[INFO] Scanning for projects...
...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.412 s
[INFO] Finished at: 2018-11-19T18:01:54+08:00
[INFO] ------------------------------------------------------------------------
[docker-springboot] $ /bin/sh -xe /Users/yangzhenlong/tools/tomcat8-jenkins/temp/jenkins7206360448776968606.sh
+ mvn docker:build #構建成功後，執行shell腳本開始...
[INFO] Scanning for projects...
...
[INFO] Copying /Users/yangzhenlong/.jenkins/workspace/docker-springboot/src/main/docker/Dockerfile -> /Users/yangzhenlong/.jenkins/workspace/docker-springboot/target/docker/Dockerfile
[INFO] Building image dockerspringboot #執行Dockerfile腳本開始...
Step 1/4 : FROM hub.c.163.com/dwyane/openjdk:8

 ---> 96cddf5ae9f1
Step 2/4 : VOLUME /tmp

 ---> Using cache
 ---> 2e62fad6a16a
Step 3/4 : ADD docker-springboot-1.0-SNAPSHOT.jar app.jar

 ---> 2d1319472a12
Step 4/4 : ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

 ---> Running in f5d8c06b3b7d
Removing intermediate container f5d8c06b3b7d
 ---> 3f24ff705b46
ProgressMessage{id=null, status=null, stream=null, error=null, progress=null, progressDetail=null}
Successfully built 3f24ff705b46
Successfully tagged dockerspringboot:latest
[INFO] Built dockerspringboot
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.841 s
[INFO] Finished at: 2018-11-19T18:02:00+08:00
[INFO] ------------------------------------------------------------------------
+ echo '當前docker 鏡像：' # dockerFile構建鏡像成功後，shell腳本打印docker鏡像
當前docker 鏡像：
+ docker images 
+ grep dockerspringboot
REPOSITORY                     TAG                 IMAGE ID            CREATED             SIZE
dockerspringboot               latest              3f24ff705b46        1 second ago        657MB
+ echo '啓動容器----->'
啓動容器-----> #這裏的中文會亂碼，後面建議使用英文
+ docker run -p 8080:8080 -d dockerspringboot
e0aeafb47410a77f30bcb24b744b49dd57b251594a68da997defeef24c256f2b
+ echo $'�\220��\212��\234\215�\212��\210\220�\212\237�\201'
啓動服務成功！
Finished: SUCCESS
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而後瀏覽器訪問 localhost:8080

改造shell腳本

若是下次構建該項目的時候，docker鏡像和服務已存在，須要先刪除鏡像和服務

# 先刪除以前的容器
echo "remobe old container"
docker ps -a | grep dockerspringboot | awk '{print $1}'| xargs docker rm -f
# 刪除以前的鏡像
echo "romove old image"
docker rmi dockerspringboot
# 構建鏡像
mvn docker:build
# 打印當前鏡像
echo "current docker images"
docker images | grep dockerspringboot
# 啓動容器
echo "start container"
docker run -p 8001:8001 -d dockerspringboot
# 打印當前容器
echo "current container"
docker ps -a | grep dockerspringboot
echo "star service success!"
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輸出日誌：

+ echo 'current docker images'
current docker images
+ docker images
REPOSITORY                     TAG                 IMAGE ID            CREATED                  SIZE
dockerspringboot               latest              8c9f93a324c0        Less than a second ago   657MB
<none>                         <none>              3f24ff705b46        2 hours ago              657MB
<none>                         <none>              e276f4ef3cc5        2 days ago               657MB
<none>                         <none>              02b677ad12e1        2 days ago               657MB
nginx                          latest              dbfc48660aeb        4 weeks ago              109MB
mongo                          latest              a41c82c0998a        2 months ago             380MB
redis                          3.2                 e2e6164a20de        4 months ago             76MB
hub.c.163.com/library/nginx    latest              46102226f2fd        19 months ago            109MB
mysql                          5.7                 9e64176cd8a2        19 months ago            407MB
hub.c.163.com/library/mysql    5.7                 9e64176cd8a2        19 months ago            407MB
hub.c.163.com/dwyane/openjdk   8                   96cddf5ae9f1        2 years ago              641MB
+ echo 'start container'
start container
+ docker run -p 8001:8001 -d dockerspringboot
0b79b907e9ca49831bd9259eeea2c60ec40132342b2ed3c00d4cf183756d6610
+ echo 'current container'
current container
+ docker ps -a
+ grep dockerspringboot
0b79b907e9ca        dockerspringboot              "java -Djava.securit…"   1 second ago        Up Less than a second      0.0.0.0:8001->8001/tcp     happy_johnson
+ echo 'star service success!'
star service success!
Finished: SUCCESS複製代碼