Files
edgeguard-native/internal/keepalived/keepalived.conf.tpl
Debian a2450a759c fix(cluster): keepalived Split-Brain + Boot-Race behoben — v1.2.101
Ursache der „WireGuard reißt immer wieder ab"-Abrisse war NICHT die UniFi,
sondern keepalived-Flapping im HA-Cluster: die VIP 89.163.205.100 (an der die
UniFi-Site-to-Site hängt) wanderte bei ~17 VRRP-Wahlen/Tag zwischen utm-1/utm-2
→ Tunnel-Abriss bei jeder Wahl.

Drei Bugs:
1) Firewall ließ VRRP (IP-Proto 112) zwischen den Cluster-Peers NICHT zu
   (policy drop). Adverts überlebten nur via conntrack-Reverse-Matching → bei
   conntrack-Ablauf gedroppt → Peer promotet sich → Split-Brain.
   Fix: ruleset.nft.tpl erlaubt `ip/ip6 ... vrrp saddr @peer_ipv4/6`;
   firewall.go nimmt zusätzlich hb_src_ip/hb_peer_ip aus cluster_settings ins
   Peer-Set (deckt den Heartbeat-Pfad 169.254.0.x ab).
2) Kein nopreempt → erholter Node riss die VIP sofort zurück (Flap-Back);
   aggressiver gw-Check (fall 2 → 10s-Blip = Failover).
   Fix: keepalived.conf.tpl mit `nopreempt` in VI_1+VI_HB, chk_gateway fall 2→5;
   keepalived.go setzt State immer BACKUP (nopreempt wirkt nur in BACKUP),
   Priorität 200/100 aus pg_role bleibt → deckt sich mit „manuelles Promote".
3) keepalived-Boot-Race: Unit startete vor vlan500 (nur After=network-online)
   → „interface vlan500 doesn't exist" → permanenter CONFIG-Crash ohne Recovery
   (keepalived nach Reboot tot). Fix: postinst legt Drop-in mit
   After=/Wants=edgeguard-interfaces.service + Restart=on-failure an.

Neuer Test internal/keepalived/keepalived_test.go (nopreempt/BACKUP/fall).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-07 17:49:04 +02:00

75 lines
1.6 KiB
Smarty

global_defs {
router_id {{ .RouterID }}
script_user root
enable_script_security
}
vrrp_script chk_edgeguard {
script "/usr/lib/edgeguard/keepalived-check.sh"
interval 2
weight -50
fall 3
rise 2
}
{{ if .GWCheckIP }}
vrrp_script chk_gateway {
script "/usr/lib/edgeguard/keepalived-gw-check.sh {{ .GWCheckIP }}"
interval 5
weight -110
fall 5
rise 2
}
{{ end }}
{{ if .HBInterface }}
vrrp_sync_group VG_1 {
group {
VI_1
VI_HB
}
}
{{ end }}
vrrp_instance VI_1 {
state {{ .State }}
interface {{ .Interface }}
virtual_router_id {{ .RouterID }}
priority {{ .Priority }}
advert_int 1
nopreempt
{{ if .SrcIP }} unicast_src_ip {{ .SrcIP }}
unicast_peer {
{{ .PeerIP }}
}
{{ end }} authentication {
auth_type PASS
auth_pass {{ .AuthPass }}
}
virtual_ipaddress {
{{ range .VIPs }} {{ .Address }}/{{ .Prefix }} dev {{ .Device }}
{{ end }} }
track_script {
chk_edgeguard
{{ if .GWCheckIP }} chk_gateway
{{ end }} }
notify_master "/usr/lib/edgeguard/keepalived-master.sh"
notify_backup "/usr/lib/edgeguard/keepalived-backup.sh"
notify_fault "/usr/lib/edgeguard/keepalived-backup.sh"
}
{{ if .HBInterface }}
vrrp_instance VI_HB {
state {{ .State }}
interface {{ .HBInterface }}
virtual_router_id {{ .HBRouterID }}
priority {{ .Priority }}
advert_int 1
nopreempt
{{ if .HBSrcIP }} unicast_src_ip {{ .HBSrcIP }}
unicast_peer {
{{ .HBPeerIP }}
}
{{ end }} authentication {
auth_type PASS
auth_pass {{ .AuthPass }}
}
}
{{ end }}