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This article introduces the relevant knowledge of "what are the methods for Docker to modify hosts". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Method 1:

Go directly to the container to modify / etc/hosts

Disadvantages: after restarting the container, the added content will be lost

Method 2:

When making a mirror image, modify it directly.

Restrictions:

Needs to be a root user and needs to install sudo in the container

Increased the mirror size

Method 3:

When running a new container using docker run, add the domain name and IP information to the container's / etc/hosts file with the parameter-add-host. For example:

Docker run-add-host=myhostname:10.180.8.1-name test-it debian

Note:

-- add-host parameter is preferably followed by-- name to avoid initiating error reports.

Method 4:

In the docker-compose.yml file, this is done by configuring the parameter extra_hosts. For example:

Extra_hosts:

-"somehost:162.242.195.82"

-"otherhost:50.31.209.229"

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