利用Dockerfile部署SpringBoot項目

利用Dockerfile部署SpringBoot項目

一、建立一個SpringBooot項目而且打成jar包

二、在Linux中建立一個文件夾，來作docker測試

[root@izwz90lvzs7171wgdhul8az ~]# mkdir /root/docker_test

三、將jar包上傳到Linux中

建立存放jar包的文件夾

[root@izwz90lvzs7171wgdhul8az docker_test]# mkdir /root/docker_test/jar

而後利用XShell上傳jar包到上面的文件夾中

四、編寫Dockerfile文件

# 基於java鏡像建立新鏡像
FROM java:8
# 做者
MAINTAINER Howinfun
# 將jar包添加到容器中並改名爲app.jar
ADD  jar/app.jar /root/docker_test/app.jar
# 運行jar包
ENTRYPOINT ["nohup","java","-jar","/root/docker_test/app.jar","&"]

注意：ADD 、 COPY 指令用法同樣，惟一不一樣的是 ADD 支持將歸檔文件（tar, gzip, bzip2, etc）作提取和解壓操做。還有須要注意的是，COPY 指令須要複製的目錄必定要放在 Dockerfile 文件的同級目錄下。

五、製做鏡像

[root@izwz90lvzs7171wgdhul8az docker_test]# docker build -t sbdemo .

命令參數：

• -t：指定新鏡像名
• .：表示Dockfile在當前路徑

若是咱們的 Dockerfile 文件路徑不在這個目錄下，或者有另外的文件名，咱們能夠經過 -f 選項單獨給出 Dockerfile 文件的路徑

[root@izwz90lvzs7171wgdhul8az docker_test]# docker build -t sbdemo -f /root/docker_test/Dockerfile /root/docker_test/

命令參數：

• -f：第一個參數是Dockerfile的路徑 第二個參數是Dockerfile所在文件夾製做完成後經過docker images命令查看咱們製做的鏡像：

[root@izwz90lvzs7171wgdhul8az  docker_test]# docker images | grep sbdemo
sbdemo              latest              7efac46ef997        4 hours ago         686MB

六、啓動容器

[root@izwz90lvzs7171wgdhul8az docker_test]# docker run -d -p 8888:8888 --name mysbdemo sbdemo:latest

命令參數：

• -d：後臺運行
• -p：公開指定端口號
• --name：給容器命名

啓動後可經過docker ps查看正在運行的容器：

[root@izwz90lvzs7171wgdhul8az docker_test]# docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
5096c8c7b36f        sbdemo              "nohup java -jar /ro??   4 seconds ago       Up 2 seconds        0.0.0.0:8888->8888/tcp   mysbdemo

七、查看容器啓動日誌

咱們能夠經過 docker logs 查看指定容器的日誌：

[root@izwz90lvzs7171wgdhul8az docker_test]# docker logs mysbdemo

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.6.RELEASE)

2019-10-11 02:10:46.264  INFO 1 --- [           main] com.hyf.DatabaseApplication              : Starting DatabaseApplication v0.0.1-SNAPSHOT on 6d85ac5d8751 with PID 1 (/root/docker_test/app.jar started by root in /)
2019-10-11 02:10:46.267 DEBUG 1 --- [           main] com.hyf.DatabaseApplication              : Running with Spring Boot v2.1.6.RELEASE, Spring v5.1.8.RELEASE
2019-10-11 02:10:46.268  INFO 1 --- [           main] com.hyf.DatabaseApplication              : No active profile set, falling back to default profiles: default
2019-10-11 02:10:49.139  WARN 1 --- [           main] o.m.s.mapper.ClassPathMapperScanner      : Skipping MapperFactoryBean with name 'bookMapper' and 'com.hyf.mapper.BookMapper' mapperInterface. Bean already defined with the same name!
2019-10-11 02:10:49.139  WARN 1 --- [           main] o.m.s.mapper.ClassPathMapperScanner      : No MyBatis mapper was found in '[com.hyf]' package. Please check your configuration.
2019-10-11 02:10:49.246  INFO 1 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Multiple Spring Data modules found, entering strict repository configuration mode!
2019-10-11 02:10:49.257  INFO 1 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2019-10-11 02:10:49.328  INFO 1 --- [           main] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 39ms. Found 0 repository interfaces.
2019-10-11 02:10:50.345  INFO 1 --- [           main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$2c6b335] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-10-11 02:10:51.255  INFO 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8888 (http)
2019-10-11 02:10:51.359  INFO 1 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2019-10-11 02:10:51.359  INFO 1 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.21]
2019-10-11 02:10:51.778  INFO 1 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-10-11 02:10:51.779  INFO 1 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 5104 ms
2019-10-11 02:10:54.164  INFO 1 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2019-10-11 02:10:56.081  INFO 1 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8888 (http) with context path ''
2019-10-11 02:10:56.090  INFO 1 --- [           main] com.hyf.DatabaseApplication              : Started DatabaseApplication in 11.49 seconds (JVM running for 12.624)

八、訪問接口

容器啓動後，咱們嘗試使用postman或者其餘http工具去訪問部署在容器中的應用接口。