CODEWITHSUNDEEP
docker
Stefan
Stefan

Reputation: 2068

Docker Hostname inside container

I'm using a docker container to run some browser tests.

For some OAuth workflow, I need a custom hostname that I can forward to the OAuth site, for example my.dev.site.

Usually in non-docker environments, I just add an entry to the /etc/hosts file that casts my.dev.site to 127.0.0.1

Is this possible with docker and if so, how?

Upvotes: 0

Views: 688

Answers (1)

Etienne Dijon
Etienne Dijon

Reputation: 1303

By default, docker container hosts are identified by their name.

However, in a compose file, you could use extra_host field to add hostnames to /etc/hosts within containers.

https://docs.docker.com/compose/compose-file/compose-file-v3/#extra_hosts

extra_hosts:
  - "my.dev.site:127.0.0.1"

And the docker run version

https://docs.docker.com/engine/reference/run/#network-settings

docker run --add-host my.dev.site:127.0.0.1 <image>

Upvotes: 1

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