func (s *consulSnapshot) persistNodes(sink raft.SnapshotSink,
encoder *codec.Encoder) error {
// Get all the nodes
nodes, err := s.state.Nodes()
if err != nil {
return err
}
// Register each node
for node := nodes.Next(); node != nil; node = nodes.Next() {
n := node.(*structs.Node)
req := structs.RegisterRequest{
Node: n.Node,
Address: n.Address,
}
// Register the node itself
sink.Write([]byte{byte(structs.RegisterRequestType)})
if err := encoder.Encode(&req); err != nil {
return err
}
// Register each service this node has
services, err := s.state.Services(n.Node)
if err != nil {
return err
}
for service := services.Next(); service != nil; service = services.Next() {
sink.Write([]byte{byte(structs.RegisterRequestType)})
req.Service = service.(*structs.ServiceNode).ToNodeService()
if err := encoder.Encode(&req); err != nil {
return err
}
}
// Register each check this node has
req.Service = nil
checks, err := s.state.Checks(n.Node)
if err != nil {
return err
}
for check := checks.Next(); check != nil; check = checks.Next() {
sink.Write([]byte{byte(structs.RegisterRequestType)})
req.Check = check.(*structs.HealthCheck)
if err := encoder.Encode(&req); err != nil {
return err
}
}
}
// Save the coordinates separately since they are not part of the
// register request interface. To avoid copying them out, we turn
// them into batches with a single coordinate each.
coords, err := s.state.Coordinates()
if err != nil {
return err
}
for coord := coords.Next(); coord != nil; coord = coords.Next() {
sink.Write([]byte{byte(structs.CoordinateBatchUpdateType)})
updates := structs.Coordinates{coord.(*structs.Coordinate)}
if err := encoder.Encode(&updates); err != nil {
return err
}
}
return nil
}
