[Docker port mapping] --2019-08-09 11:04:47

Original: http://106.13.73.98/__/104/

Docker is about to open port mapping port mapping to host the container port, which provides access to external networks.

First, let's download mirror for the test port mapping:

[root@fedora ~]# docker pull training/webapp

After the download is complete, start the following operations.

Random port mapping


execution command to below the random port 5000 is mapped to the host port of the container:

[root@fedora ~]# docker -d -P training/webapp python app.py

To view port mapping information mapping:

[root@fedora ~]# docker port inspiring_mcnulty
5000/tcp -> 0.0.0.0:32768
# 容器的5000端口被映射到了宿主机的32768端口

Check process in the container information:

[root@fedora ~]# docker top b0b
UID                 PID                 PPID                C                   STIME               TTY                 TIME                CMD
root                4676                4656                0                   08:20               ?                   00:00:00            python app.py

Monitoring container logs:

[root@fedora ~]# docker logs -f 9505707c12ad

Open a browser to access:

It is mapped to the specified port


Run the following commands to map port 5000 to port 9000 of container host port:

[root@fedora ~]# docker run -d -p 9000:5000 training/webapp python app.py

Well, the same steps as above, to test it.

Original: http://106.13.73.98/__/104/