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feat(healthcheck): HEALTH_ICMP_TARGET_IP -> HEALTH_ICMP_TARGET_IPS

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- Specify fallback ICMP IP addresses
- Defaults changed from 1.1.1.1 to 1.1.1.1,8.8.8.8
- Small periodic check cycles through addresses as it fails and moves to retry
This commit is contained in:
Quentin McGaw
2025-11-19 16:00:20 +00:00
parent f9490656eb
commit 9f39d47150
6 changed files with 60 additions and 33 deletions
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2
internal/vpn/interfaces.go
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@@ -101,7 +101,7 @@ type CmdStarter interface {
}
type HealthChecker interface {
SetConfig(tlsDialAddrs []string, icmpTarget netip.Addr)
SetConfig(tlsDialAddrs []string, icmpTargetIPs []netip.Addr)
Start(ctx context.Context) (runError <-chan error, err error)
Stop() error
}

8
internal/vpn/tunnelup.go
View File

@@ -31,11 +31,11 @@ func (l *Loop) onTunnelUp(ctx, loopCtx context.Context, data tunnelUpData) {
}
}
icmpTarget := l.healthSettings.ICMPTargetIP
if icmpTarget.IsUnspecified() {
icmpTarget = data.serverIP
icmpTargetIPs := l.healthSettings.ICMPTargetIPs
if len(icmpTargetIPs) == 1 && icmpTargetIPs[0].IsUnspecified() {
icmpTargetIPs = []netip.Addr{data.serverIP}
}
l.healthChecker.SetConfig(l.healthSettings.TargetAddresses, icmpTarget)
l.healthChecker.SetConfig(l.healthSettings.TargetAddresses, icmpTargetIPs)
healthErrCh, err := l.healthChecker.Start(ctx)
l.healthServer.SetError(err)