A master key now has a set of servers (the panel's own and/or nodes). A
device's single WireGuard key becomes a peer on every server of its key,
each with its own IP and PSK, and config.servers[] lists them all.
- ui.db: master_servers (the key's set, never empty), device_peers (which
key is on which server, with the ip/psk that server issued),
peer_tombstones (peers to delete) and server_profiles (last known
profile of each server).
- Nothing is pushed blindly: reconcile() brings one server to the desired
state - deletes tombstones, adds peers, rekeys with PUT, fills ip/psk,
rotates a pending PSK - one pass per server at a time. It runs right
after every action, when a node connects and once a minute, so a node
that was offline catches up on rekeys, PSK changes and removals.
- config is built from ui.db, so an offline node stays in it and rev does
not flap; a server is listed once its peer carries the device's current
key. An empty config is never sent (502 instead); register and rekey
roll back if no server accepted the key.
- Existing keys and devices migrate on start. With one server the config
and its rev are byte-identical to 0.3.1 (checked by running both
versions on the same ui.db), so existing clients notice nothing.
- Panel: server checkboxes in the key settings instead of the placeholder
(the last one cannot be removed), "на N из M серверов" on devices that
have not reached every server yet, device stats summed over servers.
- SUB_HOST: the panel's public address for sen:// links and endpoints;
install.sh writes it. Without it a panel with no VPN of its own used
the address it was opened at.
- A node referenced by a key's server set cannot be deleted.
maeneko
c97acc933f