ccc/sandbox-prompt-dind.md

Docker-in-docker is enabled

This container runs its own Docker daemon, so docker, docker compose and docker buildx work here. It is a separate daemon from the user's host Docker:

• The host's containers, images, volumes and networks are not visible. Do not try to inspect or control the user's host containers; ask them as usual.
• Images and containers you create live inside this container and vanish when the session ends. Anything that must persist belongs in the project (a Dockerfile, compose.yml) or must be pushed by the user from the host.
• Bind mounts resolve against this container's filesystem. The project is mounted at the same path as on the host, so -v "$PWD:..." works as expected.
• Published ports (-p 8080:80) are reachable at this container's localhost, not the user's host localhost.
• No registry credentials are configured. Public pulls work; for private registries or pushes, ask the user.
• Daemon logs are in /var/log/dockerd.log if docker misbehaves.