How to get the IP address of Docker container using Docker SDK for Python?

Question

I am launching a container with network_mode = bridge, when I inspect the network container in the terminal I get the container IP address.

docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' container_id

However, I can't get this IP address from the container object. Is there any solution without searching the container in the network object?

Yes, but didn't help, I need to use docker SDK for python because the interactions with the docker daemon are from the flask server. — Tiago Ramalho
– Tiago Ramalho, Commented Oct 11, 2019 at 10:00
Looking up this IP address is almost never necessary (it simply doesn't work in several common situations); why do you want it? — David Maze
– David Maze, Commented Oct 11, 2019 at 10:27
It is an academic project but basically, I want to implement a policy rule in the openvswitch where I restrict access to that container based on the IP address. — Tiago Ramalho
– Tiago Ramalho, Commented Oct 11, 2019 at 13:28

tom · Accepted Answer · 2023-05-27 17:23:52Z

19

Here is an example:

import docker

client = docker.DockerClient()
container = client.containers.get(container_id_or_name)
ip_add = container.attrs['NetworkSettings']['IPAddress']
print(ip_add)

You may need to call container.reload() first to update the attributes (reference).

edited May 27, 2023 at 17:23

tom

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answered Oct 11, 2019 at 10:03

LinPy

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Community · Accepted Answer · 2022-12-09 17:22:33Z

3

If the IP doesn't return from container.attrs['NetworkSettings']['IPAddress'] as suggested here, try the following:

network_name = "my_net"
container.attrs["NetworkSettings"]["Networks"][network_name]["IPAddress"]

For me, this was the case when the containers were created with docker-compose, with an external network.

edited Dec 9, 2022 at 17:22

CommunityBot

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answered Feb 8, 2022 at 17:36

Gulzar

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Comments

edsion zhang · Accepted Answer · 2023-02-17 07:42:31Z

1

container.attrs.get("NetworkSettings", {}).get("Networks", {}).get(network.name, {}).get("IPAddress")

answered Feb 17, 2023 at 7:42

edsion zhang

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Mark Rotteveel Over a year ago

Please don't post only code as answer, but also provide an explanation what your code does and how it solves the problem of the question. Answers with an explanation are usually more helpful and of better quality, and are more likely to attract upvotes.

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