codex - 💡(How to fix) Fix [devcontainer] "secure" customer profile for devcontainer should be installable from Codex [1 participants]

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openai/codex#18339Fetched 2026-04-18 05:55:40
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What variant of Codex are you using?

CLI

What feature would you like to see?

Having a first-party devcontainer for isolation of Codex is very nice, but the config files for it are only available here in the repo, which does not really help any users.

My proposal here is for a new sub-command that is similar in syntax to the existing sandbox command called codex devcontainer. The command would then verify that the user has a Docker engine and @devcontainers/cli installed, extract the needed files from the codex executable to a .codex-devcontainer folder in the current directory, and launch the container.

Additional information

A rough draft of what I'm thinking can be seen here: https://github.com/ebendler/codex/commit/870fcd6e1e224f15d8d8ae7b3e63d4b1cf9abfdf

extent analysis

TL;DR

Implement a new sub-command codex devcontainer to provide a first-party devcontainer for isolation, making it easier for users to access and utilize the config files.

Guidance

  • Review the proposed implementation in the provided commit (https://github.com/ebendler/codex/commit/870fcd6e1e224f15d8d8ae7b3e63d4b1cf9abfdf) to understand the suggested changes.
  • Verify that the codex devcontainer command checks for the presence of Docker engine and @devcontainers/cli before attempting to launch the container.
  • Consider adding error handling and user feedback mechanisms to ensure a smooth experience when using the new sub-command.
  • Evaluate the security implications of extracting files from the Codex executable to a user-accessible directory.

Example

No code snippet is provided as the issue does not contain sufficient technical details to generate a accurate example.

Notes

The proposed solution relies on the user having Docker and @devcontainers/cli installed, which may not be the case for all users. Additional checks and installation guidance may be necessary.

Recommendation

Apply workaround: Implement the proposed codex devcontainer sub-command as described, allowing users to easily access and utilize the devcontainer config files. This approach addresses the user's request and provides a clear path forward for improving the Codex user experience.

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codex - 💡(How to fix) Fix [devcontainer] "secure" customer profile for devcontainer should be installable from Codex [1 participants]