When the host shuts down, sshd is killed before sending exit-status,
causing Go ssh library to return "wait: remote command exited without
exit status" — treated as failure even though the shutdown worked.
Changes:
- shutdown.go: wrap shutdown-like commands with nohup so the SSH
session exits cleanly before sshd is killed by shutdown
- IsShutdownCommand() helper detects shutdown/poweroff/halt/reboot commands
- handlers_machines.go: classify expected shutdown-side-effect errors
(no exit status, connection refused/reset) as success so the UI
shows a green toast instead of a false error
The old ApproveFingerprint passed the SHA256 fingerprint string to
AddKnownHost which expected authorized_key format, causing known_hosts
entries to be corrupted and subsequent SSH connections (including shutdown)
to fail with "host key not found".
Changes:
- dialSSH now returns (conn, fingerprint, pubKey, error) with the raw
ssh.PublicKey captured from the server
- New ConnectForApproval() wraps dialSSH with strictHostKeyChecking=false
for the approval handshake
- ApproveFingerprint now opens an SSH connection to the host (non-strict),
captures the real public key, and writes it in authorized_keys format
to known_hosts via AddKnownHost
- shutdown.go updated to handle the new 4-value dialSSH return
- Supports optional host_key field in request body for direct key submission
Backend:
- New migration: add shutdown_command TEXT column to machines table
- Machine model updated with ShutdownCommand field (Create/GetAll/GetByID/Update)
- MachineRequest/MachineResponse DTOs updated with shutdown_command field
- New ShutdownResponse DTO
- New POST /api/machines/{id}/shutdown handler via SSH
- Refactor sshmanager/testconn.go: extract dialSSH() helper shared with shutdown.go
- New sshmanager/shutdown.go: RunRemoteCommand with 15s timeout
Frontend:
- New shutdownMachine() API helper and ShutdownResponse type in client.ts
- New shutdown_command field in MachineForm
- Power button (amber) in machines table actions
- Shutdown confirmation modal with WoL warning notice
- shutdown_command input field in machine edit/create form
- Machine interface updated with shutdown_command and last_seen_at fields
darroyo