Description
Summary:
nemoclaw onboard fails at preflight with "Port 18789 is not available" after a previous sandbox was destroyed. The SSH port-forward process from the previous session is not cleaned up by openshell gateway destroy or nemoclaw <name> destroy.
Reproduction Steps
- Complete a full
nemoclaw onboard (sandbox running, dashboard forwarded on port 18789)
- Destroy gateway directly via openshell (bypassing NemoClaw's cleanup):
openshell gateway destroy -g nemoclaw
docker stop openshell-cluster-nemoclaw
docker rm openshell-cluster-nemoclaw
- Run
nemoclaw onboard again
Note: This also applies to scenarios where the gateway is lost unexpectedly (machine reboot, Ctrl+C during onboard, etc.) without going through nemoclaw destroy.
Environment
- Platform: Ubuntu 24.04
- NemoClaw: v0.1.0 (latest main)
- OpenShell CLI: 0.0.26
- Node.js: v22.22.2
Debug Output
Logs
**Expected Behavior:**
Onboard detects the orphaned SSH port-forward and cleans it up automatically, then proceeds normally.
**Actual Behavior:**
[1/8] Preflight checks
✓ Docker is running
✓ Container runtime: docker
✓ openshell CLI: openshell 0.0.26
✓ Port 8080 available (OpenShell gateway)
!! Port 18789 is not available.
NemoClaw dashboard needs this port.
Blocked by: ssh (PID 3595441)
User must manually `sudo kill <PID>` before re-onboarding.
**Suggested Fix:**
In the preflight port check, when port 18789 is blocked by an `ssh` process (NemoClaw's own port-forward), automatically kill it and retry — similar to the orphaned gateway container cleanup in #1582.Checklist
Description
Summary:
nemoclaw onboardfails at preflight with "Port 18789 is not available" after a previous sandbox was destroyed. The SSH port-forward process from the previous session is not cleaned up byopenshell gateway destroyornemoclaw <name> destroy.Reproduction Steps
nemoclaw onboard(sandbox running, dashboard forwarded on port 18789)openshell gateway destroy -g nemoclaw
docker stop openshell-cluster-nemoclaw
docker rm openshell-cluster-nemoclaw
nemoclaw onboardagainNote: This also applies to scenarios where the gateway is lost unexpectedly (machine reboot, Ctrl+C during onboard, etc.) without going through
nemoclaw destroy.Environment
Debug Output
Logs
Checklist