package runtime import ( "sort" "strings" "github.com/traefik/traefik/v2/pkg/config/dynamic" "github.com/traefik/traefik/v2/pkg/log" ) // Status of the router/service. const ( StatusEnabled = "enabled" StatusDisabled = "disabled" StatusWarning = "warning" ) // Configuration holds the information about the currently running traefik instance. type Configuration struct { Routers map[string]*RouterInfo `json:"routers,omitempty"` Middlewares map[string]*MiddlewareInfo `json:"middlewares,omitempty"` TCPMiddlewares map[string]*TCPMiddlewareInfo `json:"tcpMiddlewares,omitempty"` Services map[string]*ServiceInfo `json:"services,omitempty"` TCPRouters map[string]*TCPRouterInfo `json:"tcpRouters,omitempty"` TCPServices map[string]*TCPServiceInfo `json:"tcpServices,omitempty"` UDPRouters map[string]*UDPRouterInfo `json:"udpRouters,omitempty"` UDPServices map[string]*UDPServiceInfo `json:"udpServices,omitempty"` } // NewConfig returns a Configuration initialized with the given conf. It never returns nil. func NewConfig(conf dynamic.Configuration) *Configuration { if conf.HTTP == nil && conf.TCP == nil && conf.UDP == nil { return &Configuration{} } runtimeConfig := &Configuration{} 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, Status: StatusEnabled} } } 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, Status: StatusEnabled} } } 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, Status: StatusEnabled} } } } 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, Status: StatusEnabled} } } 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, Status: StatusEnabled} } } if len(conf.TCP.Middlewares) > 0 { runtimeConfig.TCPMiddlewares = make(map[string]*TCPMiddlewareInfo, len(conf.TCP.Middlewares)) for k, v := range conf.TCP.Middlewares { runtimeConfig.TCPMiddlewares[k] = &TCPMiddlewareInfo{TCPMiddleware: v, Status: StatusEnabled} } } } if conf.UDP != nil { if len(conf.UDP.Routers) > 0 { runtimeConfig.UDPRouters = make(map[string]*UDPRouterInfo, len(conf.UDP.Routers)) for k, v := range conf.UDP.Routers { runtimeConfig.UDPRouters[k] = &UDPRouterInfo{UDPRouter: v, Status: StatusEnabled} } } if len(conf.UDP.Services) > 0 { runtimeConfig.UDPServices = make(map[string]*UDPServiceInfo, len(conf.UDP.Services)) for k, v := range conf.UDP.Services { runtimeConfig.UDPServices[k] = &UDPServiceInfo{UDPService: v, Status: StatusEnabled} } } } 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 (c *Configuration) PopulateUsedBy() { if c == nil { return } logger := log.WithoutContext() for routerName, routerInfo := range c.Routers { // lazily initialize Status in case caller forgot to do it if routerInfo.Status == "" { routerInfo.Status = StatusEnabled } 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 := c.Middlewares[fullMidName]; !ok { continue } c.Middlewares[fullMidName].UsedBy = append(c.Middlewares[fullMidName].UsedBy, routerName) } serviceName := getQualifiedName(providerName, routerInfo.Router.Service) if _, ok := c.Services[serviceName]; !ok { continue } c.Services[serviceName].UsedBy = append(c.Services[serviceName].UsedBy, routerName) } for k, serviceInfo := range c.Services { // lazily initialize Status in case caller forgot to do it if serviceInfo.Status == "" { serviceInfo.Status = StatusEnabled } sort.Strings(c.Services[k].UsedBy) } for midName, mid := range c.Middlewares { // lazily initialize Status in case caller forgot to do it if mid.Status == "" { mid.Status = StatusEnabled } sort.Strings(c.Middlewares[midName].UsedBy) } for routerName, routerInfo := range c.TCPRouters { // lazily initialize Status in case caller forgot to do it if routerInfo.Status == "" { routerInfo.Status = StatusEnabled } 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 := c.TCPServices[serviceName]; !ok { continue } c.TCPServices[serviceName].UsedBy = append(c.TCPServices[serviceName].UsedBy, routerName) } for k, serviceInfo := range c.TCPServices { // lazily initialize Status in case caller forgot to do it if serviceInfo.Status == "" { serviceInfo.Status = StatusEnabled } sort.Strings(c.TCPServices[k].UsedBy) } for midName, mid := range c.TCPMiddlewares { // lazily initialize Status in case caller forgot to do it if mid.Status == "" { mid.Status = StatusEnabled } sort.Strings(c.TCPMiddlewares[midName].UsedBy) } for routerName, routerInfo := range c.UDPRouters { // lazily initialize Status in case caller forgot to do it if routerInfo.Status == "" { routerInfo.Status = StatusEnabled } providerName := getProviderName(routerName) if providerName == "" { logger.WithField(log.RouterName, routerName).Error("udp router name is not fully qualified") continue } serviceName := getQualifiedName(providerName, routerInfo.UDPRouter.Service) if _, ok := c.UDPServices[serviceName]; !ok { continue } c.UDPServices[serviceName].UsedBy = append(c.UDPServices[serviceName].UsedBy, routerName) } for k, serviceInfo := range c.UDPServices { // lazily initialize Status in case caller forgot to do it if serviceInfo.Status == "" { serviceInfo.Status = StatusEnabled } sort.Strings(c.UDPServices[k].UsedBy) } } func contains(entryPoints []string, entryPointName string) bool { for _, name := range entryPoints { if name == entryPointName { return true } } return false } 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 }