Cannot forward gpg-agent when "docker-in-docker" is enabled in devcontainer

[pan93412]

What happened?

The exact same issue mentioned in https://github.com/loft-sh/devpod/issues/881#issuecomment-2008166519.

$ devpod ssh devpod-issue --debug
<omitted>
19:06:17 info Initializing gpg-agent forwarding
19:06:17 info Decoding input public key
19:06:17 info Decoding input owner trust
19:06:17 info Stopping container gpg-agent
19:06:17 info gpg: importing gpg public key in container
19:06:17 info gpg: importing gpg owner trust in container
19:06:17 info Ensuring paths existence and permissions
19:06:17 info Ensure stopping container gpg-agent
19:06:17 info Setup local gnupg socket links
19:06:17 debug Received ping from agent
19:06:17 debug Connection to container closed
19:06:17 debug done inject
19:06:17 fatal error forwarding /Users/pan93412/.gnupg/S.gpg-agent.extra: EOF
19:06:17 debug done injecting

What did you expect to happen instead?

I should be able to log in into my container.

How can we reproduce the bug? (as minimally and precisely as possible)

https://github.com/pan93412/devpod-regression-20240607

My devcontainer.json:

{
    "image":"mcr.microsoft.com/devcontainers/go",
    "features": {
        "ghcr.io/devcontainers/features/docker-in-docker:2": {}
    }
}

Local Environment:

• DevPod Version: v0.5.12
• Operating System: Mac
• ARCH of the OS: ARM64

DevPod Provider:

• Cloud Provider: aws

Anything else we need to know?

[pascalbreuninger]

Hi @pan93412, thanks for opening the issue. I can reproduce it on my side as well, we'll take a look

[endocrimes]

@pascalbreuninger Did you ever get a chance to take a closer look? - I ran into this today too (and it's somewhat of a workflow blocker, so can spend a bit of time digging in, but any other context would be helpful)

[pascalbreuninger]

Finally had a chance to tackle this, the attached PR should fix this issue with the next release :)