add endpoint for re-joins (migration)

controllers/node.go

@@ -34,6 +34,7 @@ func nodeHandlers(r *mux.Router) {
 	r.HandleFunc("/api/nodes/{network}/{nodeid}/createingress", logic.SecurityCheck(false, http.HandlerFunc(createIngressGateway))).Methods("POST")
 	r.HandleFunc("/api/nodes/{network}/{nodeid}/deleteingress", logic.SecurityCheck(false, http.HandlerFunc(deleteIngressGateway))).Methods("DELETE")
 	r.HandleFunc("/api/nodes/{network}/{nodeid}/approve", authorize(false, true, "user", http.HandlerFunc(uncordonNode))).Methods("POST")
+	r.HandleFunc("/api/nodes/{network}/{nodeid}", authorize(true, true, "node", http.HandlerFunc(createNode))).Methods("POST")
 	r.HandleFunc("/api/nodes/{network}", nodeauth(checkFreeTierLimits(node_l, http.HandlerFunc(createNode)))).Methods("POST")
 	r.HandleFunc("/api/nodes/adm/{network}/authenticate", authenticate).Methods("POST")
 }