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Automatic Port Forwarding for Docker Containers
2 starsGo
Conduit – Automatic Port Forwarding for Docker Containers
by orandaio·Feb 27, 2026·1 point·0 comments
AI Analysis
●●SolidSolve My ProblemShip It
Single-port multiplexing for Docker services, but Caddy and ngrok already handle this better.
Strengths
- •Abstraction over Codespaces/Dev Containers' inconsistent port exposure APIs
- •Zero configuration in container—runs directly inside without external setup
- •Linux-native implementation using /proc/net/tcp avoids dependencies
Weaknesses
- •HTTP-only routing—no WebSocket, gRPC, or TCP passthrough support
- •Linux-specific—/proc/net/tcp limits portability to Windows and macOS
Category
Target Audience
Backend developers, DevOps engineers using Docker containers or dev environments
Similar To
Caddy · ngrok · socat
Post Description
A small Go library built to make it dead simple to expose internal ports from a Docker container (can be used anywhere, but this was my use-case).
I had trouble finding a simple tool to expose internal ports consistently. E.g. Codespaces, Dev Containers, etc have different mechanisms to expose ports.
To keep exposure agnostic, this tool can be run directly in the container.
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