Customers can now see what they have used and what is left, and the service
slows down rather than stopping when the allowance is gone — a slow Nextcloud
gets a top-up, a dead one gets a cancellation.
- instance_traffic keeps one row per instance per month. Proxmox counters are
cumulative since the VM last started, so usage is the difference between two
samples, and a counter that went backwards means a restart, not a refund.
- Outbound is what counts: inbound is free at our providers and egress is what
Hetzner's 20 TB per server applies to.
- CollectInstanceTraffic samples every 15 minutes, warns once per threshold
(80/95 %) rather than on every run, and at 100 % limits the VM's NIC via
Proxmox — released again as soon as the customer tops up or the month rolls
over.
- The dashboard gets a full-width band (it throttles the service, so it is not
a tile among tiles) with the top-up offer right next to the warning.
- Bytes are formatted in SI units now: allowances are computed in SI, so
dividing by 1024 made a 1000 GB plan read as "931 GB".
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The console can now create, block and remove VPN accesses, and shows who is
actually connected — traffic counters, source endpoint and last handshake.
Design notes:
- The web container has no wg0, so the page never talks to WireGuard. Live
state is copied in by SyncVpnPeers on the provisioning queue (the only worker
whose container owns the interface); the page polls the database and merely
nudges that job, throttled so many open tabs cannot flood the queue.
- enabled (operator intent) and present (observed on the hub) are stored
separately, so a sync can never quietly undo a block and drift stays visible
as "wird angewendet".
- The sync adopts peers the host pipeline registered, naming them after their
host — otherwise "who is on the VPN" would have blind spots.
- Keypairs are generated in PHP via libsodium rather than shelling out to
wg genkey (no interface in this container, and it keeps generation testable).
The private key is shown once and never stored.
- allocateIp() now also considers vpn_peers, which would otherwise be handed a
tunnel address a host already holds.
- vpn.manage is a new capability held by Owner/Admin only, and it hides the nav
entry too — a VPN access reaches the management network.
Verified end to end against the real hub, not just mocks: created an access in
the browser, connected with the generated config, watched the console flip to
"Verbunden" with real counters, then blocked it and confirmed the peer was
gone from wg0 and the client could no longer handshake.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
nexxo