Shulou(Shulou.com)06/01 Report--

This article shows you how to modify the docker container port, the content is concise and easy to understand, it will definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Docker port mapping is to map the service ports applied in the container to the host machine.

Port mapping when creating a container

Docker run-d-p 80:80-name name

To replace the container, you need to stop the container

$docker stop A $docker commit An imageA$ docker rm A $docker run-d-p 80:80-name An imageA

To modify the configuration of the container, you need to restart the DOCKER service, otherwise it will fail.

1. Stop the container, stop the service (systemctl stop docker/service docker stop)

$docker stop A $systemctl stop docker

two。 Modify / var/lib/docker/containers/ {Container ID+ some strings} / hostconfig.json

"PortBindings": {"container port / tcp": [{"HostIp": "", "HostPort": "host port"}]

At the same time, modify "ExposedPorts": {"Container Port / tcp": {}} in config.v2.json in the same directory.

"Ports": {"Container port / tcp": [{"HostIp": "0.0.0.0", "HostPort": "host port"}]}

3. Restart the service and start the container (systemctl start docker/service docker start)

$systemctl start docker$ docker start A

Add a mapping when the container is running

Iptables-t nat-A DOCKER-p tcp-- dport host port-j DNAT-- to-destination container ip: container port

View Container ip

Docker inspect-- format=' {{.NetworkSettings.IPAddress}}'$(docker ps-a-Q)

The above content is how to modify the docker container port, have you learned the knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.