docker -SpringBoot微服务打包Docker镜像

Posted 2021-05-23 hequnwang10

1、架构springboot项目

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {

    @RequestMapping("/hello")
    public String hello(){
        return "hello!";
    }
}

2、打包应用

3、编写dockerfile

FROM java:8

COPY *.jar /app.jar
CMD ["--server.port=8080"]

EXPOSE 8080
ENTRYPOINT ["java","-jar","/app.jar"]

将jar包和Dockerfile上传至服务器

4、构建镜像

root@vm:/home/idea# ls
demo-0.0.1-SNAPSHOT.jar  Dockerfile

#构建镜像
docker build -t whq .

root@vm:/home/idea# docker build -t whq .
Sending build context to Docker daemon  17.06MB
Step 1/5 : FROM java:8

root@vm:/home/idea# docker images
REPOSITORY   TAG                IMAGE ID       CREATED              SIZE
whq          latest             8faba24825d8   About a minute ago   660MB
tomcat       latest             c43a65faae57   6 days ago           667MB
redis        5.0.9-alpine3.11   3661c84ee9d0   13 months ago        29.8MB
java         8                  d23bdf5b1b1b   4 years ago          643MB

5、发布运行

#发布运行
root@vm:/home/idea# docker run -d -P --name whq-springboot-web whq
cc76bb7b1f2fb33a2cbecbdbc3f5e317b7a2d4cc8cb54fe9552822033767f66c
root@vm:/home/idea# docker ps
CONTAINER ID   IMAGE     COMMAND                  CREATED          STATUS          PORTS                                         NAMES
cc76bb7b1f2f   whq       "java -jar /app.jar …"   14 seconds ago   Up 13 seconds   0.0.0.0:49159->8080/tcp, :::49159->8080/tcp   whq-springboot-web


root@vm:/home/idea# curl localhost:49159
{"timestamp":"2021-05-20T14:20:47.461+00:00","status":404,"error":"Not Found","message":"","path":"/"}

root@vm:/home/idea# curl localhost:49159/hello
hello! 

完成发布！