SpringBoot微服务打包Docker镜像

步骤

• 构建springboot项目
• 打包应用
• 编写dockerfile
• 构建镜像
• 发布运行

打包应用

编写dockerfile

FROM java:8

COPY *.jar /app.jar

CMD ["--server.port=8080"]

EXPOSE 8080

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

构建镜像
发布运行

[root@iz2zeif8d0jji4i15b138pz home]# ls
ceshi  docker-test-volume  mysql
[root@iz2zeif8d0jji4i15b138pz home]# mkdir idea
[root@iz2zeif8d0jji4i15b138pz home]# ls
ceshi  docker-test-volume  idea  mysql
[root@iz2zeif8d0jji4i15b138pz home]# cd idea/
[root@iz2zeif8d0jji4i15b138pz idea]# ls

利用xftp将本地jar和dockerfile文件拖拽上传到宿主机上

[root@iz2zeif8d0jji4i15b138pz idea]# ls
demo-0.0.1-SNAPSHOT.jar  Dockerfile
[root@iz2zeif8d0jji4i15b138pz idea]# ll
total 16664
-rw-r--r-- 1 root root 17057825 Apr 25 13:31 demo-0.0.1-SNAPSHOT.jar
-rw-r--r-- 1 root root      120 Apr 25 13:31 Dockerfile

构建镜像命令

[root@iz2zeif8d0jji4i15b138pz idea]# docker build -t gsjidea .
Sending build context to Docker daemon  17.06MB
Step 1/5 : FROM java:8
8: Pulling from library/java
5040bd298390: Pull complete
fce5728aad85: Pull complete

[root@iz2zeif8d0jji4i15b138pz idea]# docker images
REPOSITORY         TAG       IMAGE ID       CREATED              SIZE
gsjidea            latest    a6a81d62ec46   About a minute ago   660MB

[root@iz2zeif8d0jji4i15b138pz idea]# docker run -d -P --name springboot-web gsjidea
831c7a44a31902ce2fa61e849f85e3a8e57c84e2db40d1ca02d370a3044b0560
[root@iz2zeif8d0jji4i15b138pz idea]# docker ps
CONTAINER ID   IMAGE            COMMAND                  CREATED         STATUS         PORTS                     NAMES
831c7a44a319   gsjidea          "java -jar /app.jar …"   9 seconds ago   Up 8 seconds   0.0.0.0:49155->8080/tcp   springboot-web

[root@iz2zeif8d0jji4i15b138pz idea]# curl localhost:49155
{"timestamp":"2021-04-25T05:43:40.628+00:00","status":404,"error":"Not Found","message":"","path":"/"}
[root@iz2zeif8d0jji4i15b138pz idea]# curl localhost:49155/hello