Introduce unixSocketTCPService, a new OriginService that dials a unix
socket and forwards raw bytes bidirectionally via WebSocket, without any
HTTP wrapping. This is the unix-socket analogue of tcpOverWSService.
A new ingress URL scheme unix+tcp:<path> is recognised during ingress
validation and maps to this service type. Example config:
ingress:
- hostname: ssh.example.com
service: unix+tcp:/run/sshd.sock
The scheme name unix+tcp mirrors the existing unix+tls modifier pattern:
the suffix describes the transport style, not the application protocol,
so the service works equally well for SSH, RDP, or any other stream-based
protocol whose daemon listens on a unix socket.
The implementation reuses the existing tcpOverWSConnection and
DefaultStreamHandler machinery; the only difference from ssh:// (TCP) is
that the underlying net.Conn is obtained via net.Dial("unix", path).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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