docker映射端口方式

1.指定端口

创建容器时使用小写p来指定端口。

[root@k3s-storage test-build]# docker run -d --name myapp -p 8080:8080 app:v1.0 
344efe4c10f47e72624e3bbe341378cb8dd21de9259d7d14f9aa40b9a3d5e8d8

2.随机端口

创建容器时使用大写P随机创建端口。

[root@k3s-storage test-build]# docker run -d --name myapp2 -P app:v1.0 
dcb87cd6df301fe712d666f80560575f1dad7167005498f8aa561f083f8d3704

3.查看容器启动信息

[root@k3s-storage test-build]# docker ps -l 
CONTAINER ID   IMAGE      COMMAND                  CREATED         STATUS         PORTS                                         NAMES
dcb87cd6df30   app:v1.0   "python3 -m http.ser…"   8 seconds ago   Up 5 seconds   0.0.0.0:49154->8080/tcp, :::49154->8080/tcp   myapp2
[root@k3s-storage test-build]# docker ps 
CONTAINER ID   IMAGE                    COMMAND                  CREATED          STATUS          PORTS                                             NAMES
344efe4c10f4   app:v1.0                 "python3 -m http.ser…"   22 seconds ago   Up 20 seconds   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp         myapp