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dewijones92
Asked: 2022-01-30 08:58:46 +0800 CST

How can I run docker container in existing network namespace?

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I have an existing network namespace:

dewi@dewiserver:~$ ip netns list
dewinetns235 (id: 0)

How can I get a docker container to use and run inside this network namespace?
e.g. run something like

docker run --rm curlimages/curl:7.81.0 --namespace dewinetns235 -L -v https://curl.haxx.se

So in this instance I want the curl command to exist within the dewinetns235 network namespace

Many thanks

linux docker network-namespace

1 Answers

  1. A quick google turns up this link. Looks like you attach the network namespace after running the container? I'm a bit surprised this isn't more built-in to Docker.

    There is the --network flag to docker run but I suspect that's for Docker-created networks.

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