Mavkit_rpc_process.Forward_handler
val callback :
acl:Mavryk_rpc_http_server.RPC_server.Acl.t ->
Mavryk_rpc_http_server.RPC_server.server ->
string ->
Mavryk_rpc_http_server.RPC_server.callback
callback server socket_path
redirects all the traffic received by the given server
to the socket determined by socket_path
if it fails to be resolved locally. The forwarding happens only if the acl
rules are satisfied.