ha-cluster: add HA cluster orchestration - #29137
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This was referenced Apr 12, 2026
pgaufillet
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Add ha-cluster, a UCI-based orchestration package that coordinates keepalived (VRRP), owsync (config sync), and optionally lease-sync (DHCP sync) to provide high availability for OpenWrt routers. Reads /etc/config/ha-cluster and generates flat configs for each managed service in /tmp/ha-cluster/. Manages lifecycle via procd. Features: - Single UCI configuration for all HA services - Automatic keepalived.conf generation (VRRP instances, VIPs) - IPv4 + IPv6 dual-stack VRRP support - Unicast and multicast VRRP transport - Service takeover/release on VRRP state transitions - Startup validation (interface checks, DHCP prerequisites) Shell-only package (PKGARCH:=all), ~1000 lines. Depends on: keepalived. Recommends: owsync, lease-sync. Tested on: OpenWrt 24.10 and 25.12 (x86_64 + filogic), production. Signed-off-by: Pierre Gaufillet <pierre.gaufillet@bergamote.eu>
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| if [ "$lease_sync_enabled" -eq 1 ]; then | ||
| mkdir -p "$confdir" | ||
| tmp_overlay="$overlay_path.new" |
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The temp file lands inside dnsmasq's conf-dir, which is passed wholesale as --conf-dir=$dnsmasqconfdir in dnsmasq.init:1175 with no filter by default, so a ha-cluster.conf.new left behind by an interrupted run gets parsed as config (and the elif cleanup branch below only removes $overlay_path). dnsmasq's conf-dir scan skips dotfiles, so a dot-prefixed name inside the same directory keeps mv atomic and is never read.
Suggested change
| tmp_overlay="$overlay_path.new" | |
| tmp_overlay="$confdir/.$HA_DNSMASQ_OVERLAY_NAME.new" |
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📦 Package Details
Maintainer: @pgaufillet
Description:
Add ha-cluster, a UCI-based orchestration package that coordinates keepalived (VRRP), owsync (config sync), and optionally lease-sync (DHCP sync) to provide high availability for OpenWrt routers.
Reads /etc/config/ha-cluster and generates flat configs for each managed service in /tmp/ha-cluster/. Manages lifecycle via procd.
Features:
Shell-only package (PKGARCH:=all), ~1000 lines.
Depends on: keepalived. Recommends: owsync, lease-sync.
Part of the OpenWrt HA cluster proposal:
Source: files shipped in the package (no upstream repo).
🧪 Run Testing Details
✅ Formalities