cassian forward - Cassian

Usage

cassian forward

Opens tunnels for all ports defined in cassian.yaml. Stays alive until you press ctrl+c. The instance keeps running after you disconnect.

Configuration

Ports are defined in cassian.yaml:

ports:
  - "8000:8000"     # local:container
  - "8888:8888"
  - "8080:3000"     # local 8080, container 3000

Example

# Start a server in the container
cassian exec -d "python -m http.server 8000"

# Forward it locally
cassian forward

# In another terminal
curl http://localhost:8000

When to use

Scenario	Command
Interactive development	`cassian ssh` (ports forward automatically)
Background server you want to reach locally	`cassian forward`
One-off command	`cassian exec` (no port forwarding)

Notes

Requires a running instance (cassian up first)
Ports also forward automatically during cassian ssh
If a local port is already in use, that tunnel is skipped with a warning