The auth key to create the node. If the node is already created (from state previously stored), then this field is not
used.
#### control_url
The coordination server URL.
`https://controlplane.tailscale.com` is used by default.
#### ephemeral
Indicates whether the instance should register as an Ephemeral node (https://tailscale.com/s/ephemeral-nodes).
#### hostname
The hostname of the node.
System hostname is used by default.
Example: `localhost`
#### exit_node
The exit node name or IP address to use.
#### exit_node_allow_lan_access
!!! note
When the exit node does not have a corresponding advertised route, private traffics cannot be routed to the exit node even if `exit_node_allow_lan_access is` set.
Indicates whether locally accessible subnets should be routed directly or via the exit node.
#### advertise_routes
CIDR prefixes to advertise into the Tailscale network as reachable through the current node.