package dynamic import ( "context" "sort" "strings" "sync" "github.com/containous/traefik/pkg/log" ) // RuntimeConfiguration holds the information about the currently running traefik instance. type RuntimeConfiguration struct { Routers map[string]*RouterInfo `json:"routers,omitempty"` Middlewares map[string]*MiddlewareInfo `json:"middlewares,omitempty"` Services map[string]*ServiceInfo `json:"services,omitempty"` TCPRouters map[string]*TCPRouterInfo `json:"tcpRouters,omitempty"` TCPServices map[string]*TCPServiceInfo `json:"tcpServices,omitempty"` } // NewRuntimeConfig returns a RuntimeConfiguration initialized with the given conf. It never returns nil. func NewRuntimeConfig(conf Configuration) *RuntimeConfiguration { if conf.HTTP == nil && conf.TCP == nil { return &RuntimeConfiguration{} } runtimeConfig := &RuntimeConfiguration{} if conf.HTTP != nil { routers := conf.HTTP.Routers if len(routers) > 0 { runtimeConfig.Routers = make(map[string]*RouterInfo, len(routers)) for k, v := range routers { runtimeConfig.Routers[k] = &RouterInfo{Router: v} } } services := conf.HTTP.Services if len(services) > 0 { runtimeConfig.Services = make(map[string]*ServiceInfo, len(services)) for k, v := range services { runtimeConfig.Services[k] = &ServiceInfo{Service: v} } } middlewares := conf.HTTP.Middlewares if len(middlewares) > 0 { runtimeConfig.Middlewares = make(map[string]*MiddlewareInfo, len(middlewares)) for k, v := range middlewares { runtimeConfig.Middlewares[k] = &MiddlewareInfo{Middleware: v} } } } if conf.TCP != nil { if len(conf.TCP.Routers) > 0 { runtimeConfig.TCPRouters = make(map[string]*TCPRouterInfo, len(conf.TCP.Routers)) for k, v := range conf.TCP.Routers { runtimeConfig.TCPRouters[k] = &TCPRouterInfo{TCPRouter: v} } } if len(conf.TCP.Services) > 0 { runtimeConfig.TCPServices = make(map[string]*TCPServiceInfo, len(conf.TCP.Services)) for k, v := range conf.TCP.Services { runtimeConfig.TCPServices[k] = &TCPServiceInfo{TCPService: v} } } } return runtimeConfig } // PopulateUsedBy populates all the UsedBy lists of the underlying fields of r, // based on the relations between the included services, routers, and middlewares. func (r *RuntimeConfiguration) PopulateUsedBy() { if r == nil { return } logger := log.WithoutContext() for routerName, routerInfo := range r.Routers { providerName := getProviderName(routerName) if providerName == "" { logger.WithField(log.RouterName, routerName).Error("router name is not fully qualified") continue } for _, midName := range routerInfo.Router.Middlewares { fullMidName := getQualifiedName(providerName, midName) if _, ok := r.Middlewares[fullMidName]; !ok { continue } r.Middlewares[fullMidName].UsedBy = append(r.Middlewares[fullMidName].UsedBy, routerName) } serviceName := getQualifiedName(providerName, routerInfo.Router.Service) if _, ok := r.Services[serviceName]; !ok { continue } r.Services[serviceName].UsedBy = append(r.Services[serviceName].UsedBy, routerName) } for k := range r.Services { sort.Strings(r.Services[k].UsedBy) } for k := range r.Middlewares { sort.Strings(r.Middlewares[k].UsedBy) } for routerName, routerInfo := range r.TCPRouters { providerName := getProviderName(routerName) if providerName == "" { logger.WithField(log.RouterName, routerName).Error("tcp router name is not fully qualified") continue } serviceName := getQualifiedName(providerName, routerInfo.TCPRouter.Service) if _, ok := r.TCPServices[serviceName]; !ok { continue } r.TCPServices[serviceName].UsedBy = append(r.TCPServices[serviceName].UsedBy, routerName) } for k := range r.TCPServices { sort.Strings(r.TCPServices[k].UsedBy) } } func contains(entryPoints []string, entryPointName string) bool { for _, name := range entryPoints { if name == entryPointName { return true } } return false } // GetRoutersByEntrypoints returns all the http routers by entrypoints name and routers name func (r *RuntimeConfiguration) GetRoutersByEntrypoints(ctx context.Context, entryPoints []string, tls bool) map[string]map[string]*RouterInfo { entryPointsRouters := make(map[string]map[string]*RouterInfo) for rtName, rt := range r.Routers { if (tls && rt.TLS == nil) || (!tls && rt.TLS != nil) { continue } eps := rt.EntryPoints if len(eps) == 0 { eps = entryPoints } for _, entryPointName := range eps { if !contains(entryPoints, entryPointName) { log.FromContext(log.With(ctx, log.Str(log.EntryPointName, entryPointName))). Errorf("entryPoint %q doesn't exist", entryPointName) continue } if _, ok := entryPointsRouters[entryPointName]; !ok { entryPointsRouters[entryPointName] = make(map[string]*RouterInfo) } entryPointsRouters[entryPointName][rtName] = rt } } return entryPointsRouters } // GetTCPRoutersByEntrypoints returns all the tcp routers by entrypoints name and routers name func (r *RuntimeConfiguration) GetTCPRoutersByEntrypoints(ctx context.Context, entryPoints []string) map[string]map[string]*TCPRouterInfo { entryPointsRouters := make(map[string]map[string]*TCPRouterInfo) for rtName, rt := range r.TCPRouters { eps := rt.EntryPoints if len(eps) == 0 { eps = entryPoints } for _, entryPointName := range eps { if !contains(entryPoints, entryPointName) { log.FromContext(log.With(ctx, log.Str(log.EntryPointName, entryPointName))). Errorf("entryPoint %q doesn't exist", entryPointName) continue } if _, ok := entryPointsRouters[entryPointName]; !ok { entryPointsRouters[entryPointName] = make(map[string]*TCPRouterInfo) } entryPointsRouters[entryPointName][rtName] = rt } } return entryPointsRouters } // RouterInfo holds information about a currently running HTTP router type RouterInfo struct { *Router // dynamic configuration Err string `json:"error,omitempty"` // initialization error } // TCPRouterInfo holds information about a currently running TCP router type TCPRouterInfo struct { *TCPRouter // dynamic configuration Err string `json:"error,omitempty"` // initialization error } // MiddlewareInfo holds information about a currently running middleware type MiddlewareInfo struct { *Middleware // dynamic configuration Err error `json:"error,omitempty"` // initialization error UsedBy []string `json:"usedBy,omitempty"` // list of routers and services using that middleware } // ServiceInfo holds information about a currently running service type ServiceInfo struct { *Service // dynamic configuration Err error `json:"error,omitempty"` // initialization error UsedBy []string `json:"usedBy,omitempty"` // list of routers using that service statusMu sync.RWMutex status map[string]string // keyed by server URL } // UpdateStatus sets the status of the server in the ServiceInfo. // It is the responsibility of the caller to check that s is not nil. func (s *ServiceInfo) UpdateStatus(server string, status string) { s.statusMu.Lock() defer s.statusMu.Unlock() if s.status == nil { s.status = make(map[string]string) } s.status[server] = status } // GetAllStatus returns all the statuses of all the servers in ServiceInfo. // It is the responsibility of the caller to check that s is not nil func (s *ServiceInfo) GetAllStatus() map[string]string { s.statusMu.RLock() defer s.statusMu.RUnlock() if len(s.status) == 0 { return nil } allStatus := make(map[string]string, len(s.status)) for k, v := range s.status { allStatus[k] = v } return allStatus } // TCPServiceInfo holds information about a currently running TCP service type TCPServiceInfo struct { *TCPService // dynamic configuration Err error `json:"error,omitempty"` // initialization error UsedBy []string `json:"usedBy,omitempty"` // list of routers using that service } func getProviderName(elementName string) string { parts := strings.Split(elementName, "@") if len(parts) > 1 { return parts[1] } return "" } func getQualifiedName(provider, elementName string) string { parts := strings.Split(elementName, "@") if len(parts) == 1 { return elementName + "@" + provider } return elementName }