Expected Behavior

devcontainers should work with xdebug

Actual Behavior

At least on Windows with VS Code + devcontainers, ddev does the wrong detection and gets the wrong host.docker.internal, so xdebug doesn't work:

host.docker.internal='172.17.0.1' because IsWSL2 and !IsDockerDesktop; received from 'ip -4 route show default'

As a result, we also see DDEV trying to use wslinfo, which can't work.

This works fine on Codespaces (also devcontainers) because we have a special case for it:

host.docker.internal='172.17.0.1' because IsCodespaces uses 'host-gateway' in extra_hosts

Probably what we need is a more general IsDevcontainers() and codespaces does a superset of that.

Interestingly enough, xdebug works fine in VS Code on macOS:

host.docker.internal='172.17.0.1' because IsLinux uses 'host-gateway' in extra_hosts

Steps To Reproduce

No response

Anything else?

No response