Hello. Has anyone managed to launch docker within the env setup? I want to be able to run some applications that are containerized as part of my dev environment. Is socker mounter docker in docker supported? dockerd doesn’t seem to work

Hey there and welcome to the community! to clarify, you’re asking about whether or not docker runs in the ChatGPT Pro Codex feature, yes? While I don’t yet have access to that, I do use the CLI version, and I’m at least familiar with how the chatgpt version works. Codex essentially handles every …

Yes, I’m using the newly release codex pro, not the cli version. I want it to be able to recreate my development environment so that it can run integration tests, and use the app as part of debugging to make sure the changes it’s suggesting actually work. Unfortunately parts of my app are dependent…

I can get static docker running, but kernel restrictions in the Codex image prevent creating new user namespaces (apparently because the unshare syscall is not available), and hence it will not run an image. I think this is a dead horse not to be kicked until they add custom image support (as hinte…

No, you cannot use custom images yet in Codex. It is the most important feature that it is missing right now, and luckily seems like it is coming soon.

It’s definitely not possible. Not only are there cgroup restrictions, as mentioned above-- even if you try to run a container without cgroups like with podman rootless and crun, it’ll fail due to not being allowed to bind mount /proc. I had to resort to creating a shim for podman that “simulates” ru…

I’m looking for the same, because my integration test depends on container, without it, I don’t have certainties with the generated code.

In my case, I use Postgres and Kafka for my integration tests. I requested that Codex find an alternative to the container method. After a while, it found a way to install and run those services. Based on that, I requested a markdown file with those steps, and I added those instructions to the AGEN…

When can we expect this to be shipped? Being able to run integration tests against Docker is basic functionality - users should not care how Codex runs the code internally.

Has docker support been added to the codex envronments?

Codex docker in docker in environment setup

Codex

Thanos June 9, 2025, 11:20pm 8

Need the container feature as well as I am blocked from doing unit tests without it.

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Codex docker in docker in environment setup

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