好久以前就用过,一直没有好好写篇博客,今天就总结一下
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建立一个SpringBoot项目并打成jar包,结构如图java
FROM java:8 VOLUME /tmp ADD springboot-1.0-SNAPSHOT.jar boot.jar EXPOSE 8080 ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/boot.jar"]
FROM
:表示基础镜像,即运行环境web
VOLUME
: /tmp建立/tmp目录并持久化到Docker数据文件夹,由于Spring Boot使用的内嵌Tomcat容器默认使用/tmp做为工做目录spring
ADD
:拷贝文件而且重命名(ADD springboot-1.0-SNAPSHOT.jar boot.jar 将应用jar包复制到/boot.jar)docker
EXPOSE
:并非真正的发布端口,这个只是容器部署人员与创建image的人员之间的交流,即创建image的人员告诉容器布署人员容器应该映射哪一个端口给外界shell
ENTRYPOINT
:容器启动时运行的命令,至关于咱们在命令行中输入java -jar xxxx.jar,为了缩短 Tomcat 的启动时间,添加java.security.egd的系统属性指向/dev/urandom做为 ENTRYPOINTapache
咱们将 Dockerfile 和 咱们的项目 jar包 上传到 Linux 服务器上去 ,如何执行下面命令centos
docker build -t springboot .
docker build
: 就是 咱们编译 当前目录下的 Dockerfile文件
-t
: 个人我的理解就是 在进程中运行 ,而那个 点 代码当前目录api
[root@spiritmark]# docker build -t springboot . Sending build context to Docker daemon 14.43 MB Step 1/5 : FROM java:8 Trying to pull repository docker.io/library/java ... 8: Pulling from docker.io/library/java 5040bd298390: Pull complete fce5728aad85: Pull complete 76610ec20bf5: Pull complete 60170fec2151: Pull complete e98f73de8f0d: Pull complete 11f7af24ed9c: Pull complete 49e2d6393f32: Pull complete bb9cdec9c7f3: Pull complete Digest: sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d Status: Downloaded newer image for docker.io/java:8 ---> d23bdf5b1b1b Step 2/5 : VOLUME /tmp ---> Running in 0aec2dc2f98c ---> a52e844f25d4 Removing intermediate container 0aec2dc2f98c Step 3/5 : ADD springboot-1.0-SNAPSHOT.jar boot .jar ---> 3ba2f4fdddda Removing intermediate container 860a0f748a23 Step 4/5 : EXPOSE 8080 ---> Running in 1d3331cc2be6 ---> e9ac33d26ce0 Removing intermediate container 1d3331cc2be6 Step 5/5 : ENTRYPOINT java -Djava.security.egd=file:/dev/./urandom -jar /boot.jar ---> Running in d354f8ee2af5 ---> 8937e1ade6c7 Removing intermediate container d354f8ee2af5 Successfully built 8937e1ade6c7
docker run --rm -d --name 容器名称 -p 8080:8080 镜像名称
–name
给容器取一个容易记住的名字方便往后管理。--rm
在Docker容器退出时,默认容器内部的文件系统仍然被保留,以方便调试并保留用户数据docker logs -f --tail=100 容器名称
[root@spiritmark] # docker logs -f --tail=100 04d6b2c34795 . ____ _ __ _ _ /\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \ ( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \ \\/ ___)| |_)| | | | | || (_| | ) ) ) ) ' |____| .__|_| |_|_| |_\__, | / / / / =========|_|==============|___/=/_/_/_/ :: Spring Boot :: (v1.5.4.RELEASE) 2019-12-29 07:42:58.982 INFO 1 --- [ main] c.b.ElkExampleSpringBootApplication : Starting ElkExampleSpringBootApplication v1.0-SNAPSHOT on 04d6b2c34795 with PID 1 (/elk.jar started by root in /) 2019-12-29 07:42:58.999 INFO 1 --- [ main] c.b.ElkExampleSpringBootApplication : No active profile set, falling back to default profiles: default 2019-12-29 07:42:59.243 INFO 1 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5a2e4553: startup date [Sun Dec 29 07:42:59 UTC 2019]; root of context hierarchy 2019-12-29 07:43:03.652 INFO 1 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8080 (http) 2019-12-29 07:43:03.699 INFO 1 --- [ main] o.apache.catalina.core.StandardService : Starting service [Tomcat] 2019-12-29 07:43:03.714 INFO 1 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.5.15 2019-12-29 07:43:04.012 INFO 1 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext 2019-12-29 07:43:04.012 INFO 1 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4772 ms 2019-12-29 07:43:04.449 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/] 2019-12-29 07:43:04.470 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*] 2019-12-29 07:43:04.470 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*] 2019-12-29 07:43:04.471 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*] 2019-12-29 07:43:04.471 INFO 1 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*] 2019-12-29 07:43:05.534 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@5a2e4553: startup date [Sun Dec 29 07:42:59 UTC 2019]; root of context hierarchy 2019-12-29 07:43:05.765 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/exception]}" onto public java.lang.String com.bruceliu.controller.ELKController.exception() 2019-12-29 07:43:05.766 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/elkdemo]}" onto public java.lang.String com.bruceliu.controller.ELKController.helloWorld() 2019-12-29 07:43:05.772 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 2019-12-29 07:43:05.780 INFO 1 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest) 2019-12-29 07:43:05.869 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-29 07:43:05.869 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-29 07:43:05.984 INFO 1 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler] 2019-12-29 07:43:06.387 INFO 1 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup 2019-12-29 07:43:06.537 INFO 1 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8080 (http) 2019-12-29 07:43:06.562 INFO 1 --- [ main] c.b.ElkExampleSpringBootApplication : Started ElkExampleSpringBootApplication in 8.771 seconds (JVM running for 9.832)
这样咱们项目 已经部署在 阿里云服务器上了浏览器
使用 idea去链接docker ,就必须开放端口,默认 docker是不支持 idea远程 链接 docker的,因此咱们要开放,
首先编辑咱们服务器上的docker文件,进入修改docker的地方
#修改该Docker服务文件 vi /usr/lib/systemd/system/docker.service
修改以ExecStart开头的行(centos 7):添加
#修改ExecStart这行 ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock
将文件内的 ExecStart注释。 新增如上行。
#ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375-H unix:///var/run/docker.sock
修改后保存文件,而后重启docker
systemctl daemon-reload
service docker restart
重启以后测试远程链接是否正常,这里的2375是以前配置的端口
curl http://服务ip:2375/version
而后开启端口,或者关闭防火墙,两者选其一便可
firewall-cmd --zone=public --add-port=2375/tcp --permanent
chkconfig iptables off
而后打开浏览器测试将以前的localhost修改成你的ip
首先下载docker插件,idea2019自带了docker插件。若是没有插件能够选择安装docker插件
打开Idea,从File->Settings->Plugins->Install JetBrains plugin进入插件安装界面,
在搜索框中输入docker,能够看到Docker integration,点击右边的Install按钮进行安装。
安装后重启Idea。
配置docker,链接到远程docker服务。
从File->Settings->Build,Execution,Deployment->Docker打开配置界面
配置完成连接以后,出现了框中的内容便可.
连接成功以后会列出容器和镜像!
配置阿里云镜像加速器:
加速器 地址 : —》 你们能够从 阿里云官网点击服务镜像加速 ,去获取
传统过程当中,打包、部署、等。
而在持续集成过程当中,项目工程通常使用 Maven 编译打包,而后生成镜像,经过镜像上线,可以大大提供上线效
率,同时可以快速动态扩容,快速回滚,着实很方便。docker-maven-plugin 插件就是为了帮助咱们在Maven工程
中,经过简单的配置,自动生成镜像并推送到仓库中。
<build> <finalName>${project.artifactId}</finalName> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <version>1.5.3.RELEASE</version> </plugin> <!--使用docker-maven-plugin插件--> <plugin> <groupId>com.spotify</groupId> <artifactId>docker-maven-plugin</artifactId> <version>1.0.0</version> <configuration> <!--指定生成的镜像名--> <imageName>${docker.image.prefix}/template</imageName> <!--指定标签--> <imageTags> <imageTag>latest</imageTag> </imageTags> <!--指定基础镜像jdk1.8--> <baseImage>java</baseImage> <!--镜像制做人本人信息--> <maintainer>2509919428@email.com</maintainer> <!--切换到ROOT目录--> <workdir>/ROOT</workdir> <cmd>["java", "-version"]</cmd> <entryPoint>["java", "-jar", "/${project.build.finalName}.jar"]</entryPoint> <!--指定远程 docker api地址--> <dockerHost>http://39.97.241.130:2375</dockerHost> <!-- 这里是复制 jar 包到 docker 容器指定目录配置 --> <resources> <resource> <targetPath>/ROOT</targetPath> <!--jar 包所在的路径 此处配置的 即对应 target 目录--> <directory>${project.build.directory}</directory> <!--用于指定须要复制的文件 须要包含的 jar包 ,这里对应的是 Dockerfile中添加的文件名 --> <include>${project.build.finalName}.jar</include> </resource> </resources> </configuration> <!---当执行mvn package 时,执行: mvn clean package docker:build--> <executions> <execution> <id>build-image</id> <phase>package</phase> <goals> <goal>build</goal> </goals> </execution> </executions> </plugin> </plugins> </build>
上面的配置 就和 下面的 效果同样 ,只不过变成了自动化
FROM java:8 VOLUME /tmp ADD springboot-1.0-SNAPSHOT.jar boot.jar EXPOSE 8080 ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/boot.jar"]
mvn clean package docker:build
或者
完成后你就会发现多出一个镜像