traefik/pkg/server/aggregator.go

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package server
import (
2019-08-03 01:58:23 +00:00
"github.com/containous/traefik/v2/pkg/config/dynamic"
"github.com/containous/traefik/v2/pkg/log"
"github.com/containous/traefik/v2/pkg/server/internal"
"github.com/containous/traefik/v2/pkg/tls"
)
func mergeConfiguration(configurations dynamic.Configurations) dynamic.Configuration {
conf := dynamic.Configuration{
HTTP: &dynamic.HTTPConfiguration{
Routers: make(map[string]*dynamic.Router),
Middlewares: make(map[string]*dynamic.Middleware),
Services: make(map[string]*dynamic.Service),
},
TCP: &dynamic.TCPConfiguration{
Routers: make(map[string]*dynamic.TCPRouter),
Services: make(map[string]*dynamic.TCPService),
},
TLS: &dynamic.TLSConfiguration{
Stores: make(map[string]tls.Store),
Options: make(map[string]tls.Options),
},
}
var defaultTLSOptionProviders []string
for provider, configuration := range configurations {
if configuration.HTTP != nil {
for routerName, router := range configuration.HTTP.Routers {
conf.HTTP.Routers[internal.MakeQualifiedName(provider, routerName)] = router
}
for middlewareName, middleware := range configuration.HTTP.Middlewares {
conf.HTTP.Middlewares[internal.MakeQualifiedName(provider, middlewareName)] = middleware
}
for serviceName, service := range configuration.HTTP.Services {
conf.HTTP.Services[internal.MakeQualifiedName(provider, serviceName)] = service
}
}
if configuration.TCP != nil {
for routerName, router := range configuration.TCP.Routers {
conf.TCP.Routers[internal.MakeQualifiedName(provider, routerName)] = router
}
for serviceName, service := range configuration.TCP.Services {
conf.TCP.Services[internal.MakeQualifiedName(provider, serviceName)] = service
}
}
if configuration.TLS != nil {
conf.TLS.Certificates = append(conf.TLS.Certificates, configuration.TLS.Certificates...)
for key, store := range configuration.TLS.Stores {
conf.TLS.Stores[key] = store
}
for tlsOptionsName, options := range configuration.TLS.Options {
if tlsOptionsName != "default" {
tlsOptionsName = internal.MakeQualifiedName(provider, tlsOptionsName)
} else {
defaultTLSOptionProviders = append(defaultTLSOptionProviders, provider)
}
conf.TLS.Options[tlsOptionsName] = options
}
}
}
if len(defaultTLSOptionProviders) == 0 {
conf.TLS.Options["default"] = tls.DefaultTLSOptions
} else if len(defaultTLSOptionProviders) > 1 {
log.WithoutContext().Errorf("Default TLS Options defined multiple times in %v", defaultTLSOptionProviders)
// We do not set an empty tls.TLS{} as above so that we actually get a "cascading failure" later on,
// i.e. routers depending on this missing TLS option will fail to initialize as well.
delete(conf.TLS.Options, "default")
}
return conf
}