🚀 Beacon Release — Proxmox Overseer

Run Beacon on a Proxmox VE host and it becomes an overseer: it monitors the host and sees every VM and container the host runs — including the up/down state a crashed guest can't report for itself — through the host's own pvesh. One vantage point that survives a guest falling over. Also adds host-mode agent management (beacon service, beacon logs) and a single-instance guard.

✨ Highlights

🖥️ Proxmox overseer — see the whole host

Install Beacon on a Proxmox VE host and it reports the host and its full guest inventory to BeaconInfra. In the dashboard the host shows up with a Host badge and its guests nested underneath — live status for every VM/CT, on the Devices list and on the device detail Operate tab.

How it works:

1. On its heartbeat, the host agent queries the host's own pvesh and reports role: host plus the current VM/container inventory.
2. BeaconInfra promotes the device to a host and stores the guest inventory — a deliberate dashboard link is never overridden by a heartbeat.
3. The dashboard renders the host card with its guests: name, type (qemu/lxc), and live running/stopped status, refreshed roughly once a minute.

beacon proxmox list proves the agent can read pvesh; the host appears in the dashboard once a heartbeat has carried the overseer inventory.

🎛️ Power controls for guests

Start / Reboot / Shutdown any guest straight from the dashboard. The action is queued to the host, which runs it on its next heartbeat — with an audit trail (received → executed) so you can see what happened.

📟 One-line Proxmox installer

On the Proxmox host, as root:

bash -c "$(curl -fsSL https://raw.githubusercontent.com/Bajusz15/beacon/main/scripts/proxmox-install.sh)"

Interactive whiptail setup (Default / Advanced), or fully unattended:

BEACON_API_KEY=bci_live_… BEACON_DEVICE_NAME="rack-pve-1" \
  bash -c "$(curl -fsSL https://raw.githubusercontent.com/Bajusz15/beacon/main/scripts/proxmox-install.sh)"

It verifies it's a PVE host, downloads the latest binary, registers the host, installs the beacon-master systemd service, and verifies overseer access.

🧰 Host-mode agent: beacon service & beacon logs

• beacon service install / status — run Beacon as a supervised systemd service (beacon-master), as root on a host or per-user elsewhere. Plumbing subcommands are hidden behind it.
• beacon logs [-f] — tail the agent's logs (journal or logfile) without hunting for the unit.

🛡️ Single-instance guard

A second beacon start against the same BEACON_HOME is refused with a clear "already running (pid …)" message instead of launching a duplicate master. The lock self-releases when the process exits.

🛠️ What's included

• Overseer CLI: beacon proxmox list / beacon proxmox status (+ beacon overseer … alias) — VMID, name, type, status, and an "N/M guests running" summary; --json output
• Host agent reports role: host + guest inventory on the heartbeat; a deliberate dashboard link is never overridden by a heartbeat
• Guest inventory in the dashboard on both the Devices list host card and the device detail Operate tab, with live status and Start / Reboot / Shutdown controls
• Guest power actions queued to the host and applied on the next heartbeat, with a received → executed audit trail
• Single-instance guard (flock on BEACON_HOME), self-releasing on exit
• beacon service (systemd beacon-master) and beacon logs
• Accepts current bci_live_… API keys; beacon restart fixed for host installs
• scripts/proxmox-install.sh: whiptail Default/Advanced flow, masked API-key prompt, spinners, and plain-prompt / env-var fallbacks for non-interactive use
• Built with Go 1.26.5 (picks up the crypto/tls standard-library security fix)

Full Changelog: https://github.com/Bajusz15/beacon/compare/v0.6.8-remote-access-pass...v0.7.0-proxmox-overseer

What's Changed

• ⭐ Passkey (WebAuthn) remote-access unlock — agent side + OOB + e2e by @Bajusz15 in https://github.com/Bajusz15/beacon/pull/160
• fix CI by @Bajusz15 in https://github.com/Bajusz15/beacon/pull/161
• feature: Proxmox overseer role + single-instance guard by @Bajusz15 in https://github.com/Bajusz15/beacon/pull/162

Full Changelog: https://github.com/Bajusz15/beacon/compare/v0.6.8-remote-access-pass...v0.7.1-proxmox-overseer