- 确定docker安装好
Client:
Version: 20.10.12
API version: 1.41
Go version: go1.17.3
Git commit: 20.10.12-0ubuntu4
Built: Mon Mar 7 17:10:06 2022
OS/Arch: linux/amd64
Context: default
Experimental: true
- 写一个简单的springboot项目，端口9000
package com.example.demo.controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class TestController {
@GetMapping("hello")
public String Hello() {
return "hello world";
}
}
- 打包项目，得到
demo-0.0.1-SNAPSHOT.jar，并上传到服务器上某个路径下 - 在该路径下新建Dockerfile
FROM openjdk:19
LABEL version="1.0" maintainer="liu<[email protected]>"
VOLUME /tmp
EXPOSE 9000
COPY demo-0.0.1-SNAPSHOT.jar demo.jar
RUN bash -c "touch /demo.jar"
ENTRYPOINT ["java", "-jar", "/demo.jar"]
- 制作镜像：
sudo docker build -t demo:v1 .
Sending build context to Docker daemon 17.63MB
Step 1/7 : FROM openjdk:19
19: Pulling from library/openjdk
051f419db9dd: Pull complete
aa51c6010a14: Pull complete
dba785fff917: Pull complete
Digest: sha256:4123be55fd6853980020c59e7530d017ea08996abbe71741a51c62f7b7586bee
Status: Downloaded newer image for openjdk:19
---> 2e6f6690e479
Step 2/7 : LABEL version="1.0" maintainer="liu<[email protected]>"
---> Running in e57b29a5b246
Removing intermediate container e57b29a5b246
---> c83d1c179e99
Step 3/7 : VOLUME /tmp
---> Running in a784a1301559
Removing intermediate container a784a1301559
---> 29ac61d06f0c
Step 4/7 : EXPOSE 9000
---> Running in 560e957e9b39
Removing intermediate container 560e957e9b39
---> 881d66fde5d0
Step 5/7 : COPY demo-0.0.1-SNAPSHOT.jar demo.jar
---> 81624581eb31
Step 6/7 : RUN bash -c "touch /demo.jar"
---> Running in cd305a07501f
Removing intermediate container cd305a07501f
---> d535e84abab6
Step 7/7 : ENTRYPOINT ["java", "-jar", "/demo.jar"]
---> Running in 8136b9aad84f
Removing intermediate container 8136b9aad84f
---> 5bfade2bb744
Successfully built 5bfade2bb744
Successfully tagged demo:v1
-
启动容器：
sudo docker run -d -p 9001:9000 demo:v1，9001是服务器端口，9000是项目端口号（容器开放端口号） -
测试：
curl http://localhost:9001/hello，输出：hello world