Esempio n. 1
0
func (n None) DeleteServer(svcId, srvId string) error {
	err := common.DeleteServer(svcId, srvId)
	if err != nil {
		return err
	}
	if database.CentralStore {
		return database.DeleteServer(svcId, srvId)
	}
	return nil
}
Esempio n. 2
0
// subscribe listens on the portal channel and acts based on messages received
func (r Redis) subscribe() {
	config.Log.Info("[cluster] - Redis subscribing on %s...", config.ClusterConnection)

	// listen for published messages
	for {
		switch v := r.subconn.Receive().(type) {
		case redis.Message:
			switch pdata := strings.FieldsFunc(string(v.Data), keepSubstrings); pdata[0] {
			// SERVICES ///////////////////////////////////////////////////////////////////////////////////////////////
			case "get-services":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - member not passed in message")
					break
				}
				member := pdata[1]

				if member == self {
					svcs, err := common.GetServices()
					if err != nil {
						config.Log.Error("[cluster] - Failed to get services - %v", err.Error())
						break
					}
					services, err := json.Marshal(svcs)
					if err != nil {
						config.Log.Error("[cluster] - Failed to marshal services - %v", err.Error())
						break
					}
					config.Log.Debug("[cluster] - get-services requested, publishing my services")
					conn := pool.Get()
					conn.Do("PUBLISH", "services", fmt.Sprintf("%s", services))
					conn.Close()
				}
			case "set-services":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - services not passed in message")
					break
				}
				services, err := marshalSvcs([]byte(pdata[1]))
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal services - %v", err.Error())
					break
				}
				err = common.SetServices(*services)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set services - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-services %s", *services))))
				config.Log.Trace("[cluster] - set-services hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-services successful")
			case "set-service":
				if len(pdata) != 2 {
					// shouldn't happen unless redis is not secure and someone manually `publishJson`es
					config.Log.Error("[cluster] - service not passed in message")
					break
				}
				svc, err := marshalSvc([]byte(pdata[1]))
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal service - %v", err.Error())
					break
				}
				err = common.SetService(svc)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set service - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-service %s", *svc))))
				config.Log.Trace("[cluster] - set-service hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-service successful")
			case "delete-service":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - service id not passed in message")
					break
				}
				svcId := pdata[1]
				err := common.DeleteService(svcId)
				if err != nil {
					config.Log.Error("[cluster] - Failed to delete service - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("delete-service %s", svcId))))
				config.Log.Trace("[cluster] - delete-service hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - delete-service successful")
			// SERVERS ///////////////////////////////////////////////////////////////////////////////////////////////
			case "set-servers":
				if len(pdata) != 3 {
					config.Log.Error("[cluster] - service id not passed in message")
					break
				}
				svcId := pdata[2]
				servers, err := marshalSrvs([]byte(pdata[1]))
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal server - %v", err.Error())
					break
				}
				err = common.SetServers(svcId, *servers)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set servers - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-servers %s %s", *servers, svcId))))
				config.Log.Trace("[cluster] - set-servers hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-servers successful")
			case "set-server":
				if len(pdata) != 3 {
					// shouldn't happen unless redis is not secure and someone manually publishJson
					config.Log.Error("[cluster] - service id not passed in message")
					break
				}
				svcId := pdata[2]
				server, err := marshalSrv([]byte(pdata[1]))
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal server - %v", err.Error())
					break
				}
				err = common.SetServer(svcId, server)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set server - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-server %s %s", *server, svcId))))
				config.Log.Trace("[cluster] - set-server hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-server successful")
			case "delete-server":
				if len(pdata) != 3 {
					config.Log.Error("[cluster] - service id not passed in message")
					break
				}
				srvId := pdata[1]
				svcId := pdata[2]
				err := common.DeleteServer(svcId, srvId)
				if err != nil {
					config.Log.Error("[cluster] - Failed to delete server - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("delete-server %s %s", srvId, svcId))))
				config.Log.Trace("[cluster] - delete-server hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - delete-server successful")
			// ROUTES ///////////////////////////////////////////////////////////////////////////////////////////////
			case "get-routes":

				if len(pdata) != 2 {
					config.Log.Error("[cluster] - member not passed in message")
					break
				}
				member := pdata[1]

				if member == self {
					rts, err := common.GetRoutes()
					if err != nil {
						config.Log.Error("[cluster] - Failed to get routes - %v", err.Error())
						break
					}
					routes, err := json.Marshal(rts)
					if err != nil {
						config.Log.Error("[cluster] - Failed to marshal routes - %v", err.Error())
						break
					}
					config.Log.Debug("[cluster] - get-routes requested, publishing my routes")
					conn := pool.Get()
					conn.Do("PUBLISH", "routes", fmt.Sprintf("%s", routes))
					conn.Close()
				}
			case "set-routes":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - routes not passed in message")
					break
				}

				var routes []core.Route
				err := parseBody([]byte(pdata[1]), &routes)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal routes - %v", err.Error())
					break
				}
				err = common.SetRoutes(routes)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set routes - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-routes %s", routes))))
				config.Log.Trace("[cluster] - set-routes hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-routes successful")
			case "set-route":
				if len(pdata) != 2 {
					// shouldn't happen unless redis is not secure and someone manually `publishJson`es
					config.Log.Error("[cluster] - route not passed in message")
					break
				}
				var rte core.Route
				err := parseBody([]byte(pdata[1]), &rte)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal route - %v", err.Error())
					break
				}
				err = common.SetRoute(rte)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set route - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-route %s", rte))))
				config.Log.Trace("[cluster] - set-route hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-route successful")
			case "delete-route":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - route not passed in message")
					break
				}
				var rte core.Route
				err := parseBody([]byte(pdata[1]), &rte)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal route - %v", err.Error())
					break
				}
				err = common.DeleteRoute(rte)
				if err != nil {
					config.Log.Error("[cluster] - Failed to delete route - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("delete-route %s", rte))))
				config.Log.Trace("[cluster] - delete-route hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - delete-route successful")
			// CERTS ///////////////////////////////////////////////////////////////////////////////////////////////
			case "get-certs":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - member not passed in message")
					break
				}

				member := pdata[1]

				if member == self {
					rts, err := common.GetCerts()
					if err != nil {
						config.Log.Error("[cluster] - Failed to get certs - %v", err.Error())
						break
					}
					certs, err := json.Marshal(rts)
					if err != nil {
						config.Log.Error("[cluster] - Failed to marshal certs - %v", err.Error())
						break
					}
					config.Log.Debug("[cluster] - get-certs requested, publishing my certs")
					conn := pool.Get()
					conn.Do("PUBLISH", "certs", fmt.Sprintf("%s", certs))
					conn.Close()
				}
			case "set-certs":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - certs not passed in message")
					break
				}
				var certs []core.CertBundle
				err := parseBody([]byte(pdata[1]), &certs)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal certs - %v", err.Error())
					break
				}
				err = common.SetCerts(certs)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set certs - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-certs %s", certs))))
				config.Log.Trace("[cluster] - set-certs hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-certs successful")
			case "set-cert":
				if len(pdata) != 2 {
					// shouldn't happen unless redis is not secure and someone manually `publishJson`es
					config.Log.Error("[cluster] - cert not passed in message")
					break
				}
				var crt core.CertBundle
				err := parseBody([]byte(pdata[1]), &crt)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal cert - %v", err.Error())
					break
				}
				err = common.SetCert(crt)
				if err != nil {
					config.Log.Error("[cluster] - Failed to set cert - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("set-cert %s", crt))))
				config.Log.Trace("[cluster] - set-cert hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - set-cert successful")
			case "delete-cert":
				if len(pdata) != 2 {
					config.Log.Error("[cluster] - cert id not passed in message")
					break
				}
				var crt core.CertBundle
				err := parseBody([]byte(pdata[1]), &crt)
				if err != nil {
					config.Log.Error("[cluster] - Failed to marshal cert - %v", err.Error())
					break
				}
				err = common.DeleteCert(crt)
				if err != nil {
					config.Log.Error("[cluster] - Failed to delete cert - %v", err.Error())
					break
				}
				actionHash := fmt.Sprintf("%x", md5.Sum([]byte(fmt.Sprintf("delete-cert %s", crt))))
				config.Log.Trace("[cluster] - delete-cert hash - %v", actionHash)
				conn := pool.Get()
				conn.Do("SADD", actionHash, self)
				conn.Close()
				config.Log.Debug("[cluster] - delete-cert successful")
			default:
				config.Log.Error("[cluster] - Recieved unknown data on %v: %v", v.Channel, string(v.Data))
			}
		case error:
			config.Log.Error("[cluster] - Subscriber failed to receive - %v", v.Error())
			if strings.Contains(v.Error(), "closed network connection") {
				// clear balancer rules ("stop balancing if we are 'dead'")
				balance.SetServices(make([]core.Service, 0, 0))
				// exit so we don't get spammed with logs
				os.Exit(1)
			}
			continue
		}
	}
}