Docker——Python和Java微服务使用 Dockerfile 打包成镜像发布上线

骑猪看日落 2023-01-16 09:34 126阅读 0赞

### 微服务打包Docker镜像 ###

*  Python微服务打包Docker镜像
 *  SpringBoot微服务打包Docker镜像

# Python微服务打包Docker镜像 #

1.  编写app.py
    
        mkdir ~/python
        cd ~/python
        vim app.py
        
        #!/usr/bin/python3
        from werkzeug.serving import make_server
        def demo_app(environ, start_response):
        start_response('200 OK', [('Content-Type', 'text/html; charset=utf-8')])
        return ['hello xiaotian'.encode('utf8')]  # 浏览器显示的内容
        
        
        if __name__ == '__main__':
        httpd = make_server('0.0.0.0', 8080, demo_app)
        sa = httpd.socket.getsockname()
        print("Serving HTTP on", sa[0], "port", sa[1], "...")
        
        httpd.serve_forever()  # 服务器在后台一直运行
    
    还有写一个模块文件
    
        vim requirements.txt
        
        werkzeug
2.  编写dockerfile
    
        FROM python
        MAINTAINER xiaotian<123@qq.com>
        
        COPY requirements.txt /app/requirements.txt
        COPY app.py /app/app.py
        
        WORKDIR /app
        
        RUN pip install -r ./requirements.txt
        
        EXPOSE 8080
        
        CMD ["python3","/app/app.py"]
    
    对于Dockerfile不熟悉的同学可用参考：  
    [Dockerfile][]
3.  构建镜像
    
        docker build -t pythonapp .
        
        查看
        docker images
        REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
        pythonapp      latest    72e2bbddc994   16 minutes ago   893MB
4.  开启容器
    
        docker run -d -p 8080:8080 --name xiaotian pythonapp
5.  发布运行
    
        后台自动运行
        docker ps
        CONTAINER ID   IMAGE     COMMAND                 CREATED          STATUS          PORTS                                      
        NAMES29cf7f100a55   pythonapp   "python3 /app/app.py"   46 seconds ago   Up 45 seconds   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp  
         xiaotian
        
        测试
        [root@docker python]# curl localhost:8080
        hello xiaotian

![在这里插入图片描述][20210424225236317.png]

# SpringBoot微服务打包Docker镜像 #

1.  构架springboot项目
    
        package xiaotian.app.tian;
        
        import org.springframework.web.bind.annotation.RequestMapping;
        import org.springframework.web.bind.annotation.RestController;
        
        @RestController
        public class helloxiaotian {
              
        
        @RequestMapping("/hello")
        public String Hello(){
              
            return "hello xiaotian";
        }

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NhbnRldmVubA_size_16_color_FFFFFF_t_70]

测试  
![在这里插入图片描述][20210424231248605.png]

1.  打包应用  
    ![在这里插入图片描述][20210424231325332.png]  
    ![在这里插入图片描述][2021042423135943.png]  
    测试  
    在CMD里运行jar包  
    java -jar app-0.0.1-SNAPSHOT.jar  
    ![在这里插入图片描述][20210424233809428.png]
    
    ![在这里插入图片描述][2021042423173870.png]
2.  编写dockerfile
    
        mkdir java
        cd java/
        上传jar包
        
        vim Dockerfile
        
        FROM java:8
        MAINTAINER xiaotian<123@qq.com>
        
        COPY *.jar /app.jar
        
        CMD ["--server.port=8080"]
        
        EXPOSE 8080
        
        ENTRYPOINT ["java","-jar","/app.jar"]
        
        [root@docker java]# ls
        app-0.0.1-SNAPSHOT.jar  Dockerfile
3.  构建镜像
    
        [root@docker java]# docker build -t javaapp .
        Sending build context to Docker daemon  16.57MB
        Step 1/5 : FROM java:8
        8: Pulling from 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 java:8
         ---> d23bdf5b1b1b
        Step 2/5 : COPY *.jar /app.jar
         ---> fe9445aff5f5
        Step 3/5 : CMD ["--server.port=8080"]
         ---> Running in 7822b686cc94
        Removing intermediate container 7822b686cc94
         ---> 4e1c3095eccb
        Step 4/5 : EXPOSE 8080
         ---> Running in c83a1bf2143c
        Removing intermediate container c83a1bf2143c
         ---> 1bc1901772eb
        Step 5/5 : ENTRYPOINT ["java","-jar","/app.jar"]
         ---> Running in b65c74eeb26e
        Removing intermediate container b65c74eeb26e
         ---> 34bbac318580
        Successfully built 34bbac318580
        Successfully tagged javaapp:latest
        
        查看镜像
        [root@docker java]# docker images
        REPOSITORY   TAG       IMAGE ID       CREATED          SIZE
        javaapp      latest    34bbac318580   54 seconds ago   660MB
        python3      latest    72e2bbddc994   55 minutes ago   893MB
4.  发布运行
    
        docker run -d -P --name xiaotian-springboot-web javaapp
        
        [root@docker java]# docker ps
        CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS     
           NAMES
        0ece0817ea1b   javaapp   "java -jar /app.jar …"   11 seconds ago   Up 10 seconds   0.0.0.0:4
        9154->8080/tcp, :::49154->8080/tcp   xiaotian-springboot-web
        
        curl localhost:49154/hello
        hello xiaotian

![在这里插入图片描述][20210424233252423.png]  
大功告成！

[Dockerfile]: https://blog.csdn.net/Cantevenl/article/details/116056353
[20210424225236317.png]: /images/20221022/63e15764bad9451d8437bf60de39f86e.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0NhbnRldmVubA_size_16_color_FFFFFF_t_70]: /images/20221022/73ad07c417214eddb038bfc9a8cf7187.png
[20210424231248605.png]: /images/20221022/4b1096b0818a4f82a37525d7544f52c6.png
[20210424231325332.png]: /images/20221022/4af7920d23e24619bcff700bf1c5e7c1.png
[2021042423135943.png]: /images/20221022/330614b258734768bebfd3f8a32f26cf.png
[20210424233809428.png]: /images/20221022/f8c14933d01b482bbc5398f936a5ed01.png
[2021042423173870.png]: /images/20221022/1fbec4c9d4cc459fb7c22c701b71bb9b.png
[20210424233252423.png]: /images/20221022/e408c297fed04c79a8493cd9cd26120e.png