220 lines
4.9 KiB
Go
220 lines
4.9 KiB
Go
package api
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import (
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"encoding/json"
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"net/http"
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"reflect"
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"github.com/containous/traefik/pkg/config/runtime"
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"github.com/containous/traefik/pkg/config/static"
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"github.com/containous/traefik/pkg/log"
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)
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type schemeOverview struct {
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Routers *section `json:"routers,omitempty"`
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Services *section `json:"services,omitempty"`
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Middlewares *section `json:"middlewares,omitempty"`
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}
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type section struct {
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Total int `json:"total"`
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Warnings int `json:"warnings"`
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Errors int `json:"errors"`
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}
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type features struct {
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Tracing string `json:"tracing"`
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Metrics string `json:"metrics"`
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AccessLog bool `json:"accessLog"`
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// TODO add certificates resolvers
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}
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type overview struct {
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HTTP schemeOverview `json:"http"`
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TCP schemeOverview `json:"tcp"`
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Features features `json:"features,omitempty"`
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Providers []string `json:"providers,omitempty"`
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}
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func (h Handler) getOverview(rw http.ResponseWriter, request *http.Request) {
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result := overview{
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HTTP: schemeOverview{
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Routers: getHTTPRouterSection(h.runtimeConfiguration.Routers),
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Services: getHTTPServiceSection(h.runtimeConfiguration.Services),
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Middlewares: getHTTPMiddlewareSection(h.runtimeConfiguration.Middlewares),
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},
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TCP: schemeOverview{
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Routers: getTCPRouterSection(h.runtimeConfiguration.TCPRouters),
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Services: getTCPServiceSection(h.runtimeConfiguration.TCPServices),
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},
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Features: getFeatures(h.staticConfig),
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Providers: getProviders(h.staticConfig),
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}
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rw.Header().Set("Content-Type", "application/json")
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err := json.NewEncoder(rw).Encode(result)
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if err != nil {
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log.FromContext(request.Context()).Error(err)
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http.Error(rw, err.Error(), http.StatusInternalServerError)
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}
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}
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func getHTTPRouterSection(routers map[string]*runtime.RouterInfo) *section {
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var countErrors int
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var countWarnings int
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for _, rt := range routers {
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switch rt.Status {
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case runtime.StatusDisabled:
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countErrors++
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case runtime.StatusWarning:
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countWarnings++
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}
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}
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return §ion{
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Total: len(routers),
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Warnings: countWarnings,
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Errors: countErrors,
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}
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}
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func getHTTPServiceSection(services map[string]*runtime.ServiceInfo) *section {
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var countErrors int
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var countWarnings int
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for _, svc := range services {
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switch svc.Status {
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case runtime.StatusDisabled:
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countErrors++
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case runtime.StatusWarning:
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countWarnings++
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}
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}
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return §ion{
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Total: len(services),
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Warnings: countWarnings,
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Errors: countErrors,
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}
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}
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func getHTTPMiddlewareSection(middlewares map[string]*runtime.MiddlewareInfo) *section {
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var countErrors int
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var countWarnings int
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for _, mid := range middlewares {
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switch mid.Status {
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case runtime.StatusDisabled:
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countErrors++
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case runtime.StatusWarning:
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countWarnings++
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}
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}
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return §ion{
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Total: len(middlewares),
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Warnings: countWarnings,
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Errors: countErrors,
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}
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}
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func getTCPRouterSection(routers map[string]*runtime.TCPRouterInfo) *section {
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var countErrors int
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var countWarnings int
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for _, rt := range routers {
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switch rt.Status {
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case runtime.StatusDisabled:
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countErrors++
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case runtime.StatusWarning:
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countWarnings++
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}
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}
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return §ion{
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Total: len(routers),
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Warnings: countWarnings,
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Errors: countErrors,
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}
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}
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func getTCPServiceSection(services map[string]*runtime.TCPServiceInfo) *section {
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var countErrors int
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var countWarnings int
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for _, svc := range services {
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switch svc.Status {
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case runtime.StatusDisabled:
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countErrors++
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case runtime.StatusWarning:
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countWarnings++
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}
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}
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return §ion{
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Total: len(services),
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Warnings: countWarnings,
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Errors: countErrors,
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}
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}
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func getProviders(conf static.Configuration) []string {
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if conf.Providers == nil {
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return nil
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}
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var providers []string
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v := reflect.ValueOf(conf.Providers).Elem()
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for i := 0; i < v.NumField(); i++ {
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field := v.Field(i)
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if field.Kind() == reflect.Ptr && field.Elem().Kind() == reflect.Struct {
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if !field.IsNil() {
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providers = append(providers, v.Type().Field(i).Name)
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}
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}
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}
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return providers
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}
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func getFeatures(conf static.Configuration) features {
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return features{
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Tracing: getTracing(conf),
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Metrics: getMetrics(conf),
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AccessLog: conf.AccessLog != nil,
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}
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}
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func getMetrics(conf static.Configuration) string {
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if conf.Metrics == nil {
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return ""
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}
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v := reflect.ValueOf(conf.Metrics).Elem()
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for i := 0; i < v.NumField(); i++ {
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field := v.Field(i)
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if field.Kind() == reflect.Ptr && field.Elem().Kind() == reflect.Struct {
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if !field.IsNil() {
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return v.Type().Field(i).Name
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}
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}
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}
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return ""
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}
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func getTracing(conf static.Configuration) string {
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if conf.Tracing == nil {
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return ""
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}
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v := reflect.ValueOf(conf.Tracing).Elem()
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for i := 0; i < v.NumField(); i++ {
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field := v.Field(i)
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if field.Kind() == reflect.Ptr && field.Elem().Kind() == reflect.Struct {
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if !field.IsNil() {
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return v.Type().Field(i).Name
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}
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}
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}
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return ""
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}
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