// GetNode is used to request information about a specific node
func (n *Node) GetNode(args *structs.NodeSpecificRequest,
reply *structs.SingleNodeResponse) error {
if done, err := n.srv.forward("Node.GetNode", args, args, reply); done {
return err
}
defer metrics.MeasureSince([]string{"nomad", "client", "get_node"}, time.Now())
// Setup the blocking query
opts := blockingOptions{
queryOpts: &args.QueryOptions,
queryMeta: &reply.QueryMeta,
watch: watch.NewItems(watch.Item{Node: args.NodeID}),
run: func() error {
// Verify the arguments
if args.NodeID == "" {
return fmt.Errorf("missing node ID")
}
// Look for the node
snap, err := n.srv.fsm.State().Snapshot()
if err != nil {
return err
}
out, err := snap.NodeByID(args.NodeID)
if err != nil {
return err
}
// Setup the output
if out != nil {
// Clear the secret ID
reply.Node = out.Copy()
reply.Node.SecretID = ""
reply.Index = out.ModifyIndex
} else {
// Use the last index that affected the nodes table
index, err := snap.Index("nodes")
if err != nil {
return err
}
reply.Node = nil
reply.Index = index
}
// Set the query response
n.srv.setQueryMeta(&reply.QueryMeta)
return nil
}}
return n.srv.blockingRPC(&opts)
}
// GetNode is used to request information about a specific node
func (n *Node) GetNode(args *structs.NodeSpecificRequest,
reply *structs.SingleNodeResponse) error {
if done, err := n.srv.forward("Node.GetNode", args, args, reply); done {
return err
}
defer metrics.MeasureSince([]string{"nomad", "client", "get_node"}, time.Now())
// Verify the arguments
if args.NodeID == "" {
return fmt.Errorf("missing node ID")
}
// Look for the node
snap, err := n.srv.fsm.State().Snapshot()
if err != nil {
return err
}
out, err := snap.NodeByID(args.NodeID)
if err != nil {
return err
}
// Setup the output
if out != nil {
reply.Node = out
reply.Index = out.ModifyIndex
} else {
// Use the last index that affected the nodes table
index, err := snap.Index("nodes")
if err != nil {
return err
}
reply.Index = index
}
// Set the query response
n.srv.setQueryMeta(&reply.QueryMeta)
return nil
}