# Mesh Topology

The WireGuard mesh connects clusters over overlay tunnels. Topology state is shared between the DaemonSet (writer) and CNI plugin (reader) via `/etc/kedge/mesh.json`.

## Peer Discovery
- Static peers from ConfigMap (`k8s/configmap-mesh.yaml`)
- Dynamic discovery via Headscale (Phase 3)

## Health Monitoring
- Periodic peer handshake checks
- Dead peer detection with configurable timeout
- Prometheus metrics: `kedge_mesh_peer_count`, `kedge_mesh_tunnel_up`