Add global InsecureSkipVerify option to disable certificate checking

Signed-off-by: Stuart Clark <stuart.clark@Jahingo.com>

configuration.go

@@ -33,6 +33,7 @@ type GlobalConfiguration struct {
 	DefaultEntryPoints        DefaultEntryPoints      `description:"Entrypoints to be used by frontends that do not specify any entrypoint"`
 	ProvidersThrottleDuration time.Duration           `description:"Backends throttle duration: minimum duration between 2 events from providers before applying a new configuration. It avoids unnecessary reloads if multiples events are sent in a short amount of time."`
 	MaxIdleConnsPerHost       int                     `description:"If non-zero, controls the maximum idle (keep-alive) to keep per-host.  If zero, DefaultMaxIdleConnsPerHost is used"`
+	InsecureSkipVerify        bool                    `description:"Disable SSL certificate verification"`
 	Retry                     *Retry                  `description:"Enable retry sending request if network error"`
 	Docker                    *provider.Docker        `description:"Enable Docker backend"`
 	File                      *provider.File          `description:"Enable File backend"`

traefik.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	fmtlog "log"
 	"net/http"
+	"crypto/tls"
 	"os"
 	"reflect"
 	"runtime"
@@ -173,6 +174,9 @@ func run(traefikConfiguration *TraefikConfiguration) {
 	globalConfiguration := traefikConfiguration.GlobalConfiguration
 
 	http.DefaultTransport.(*http.Transport).MaxIdleConnsPerHost = globalConfiguration.MaxIdleConnsPerHost
+	if globalConfiguration.InsecureSkipVerify {
+		http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
+	}
 	loggerMiddleware := middlewares.NewLogger(globalConfiguration.AccessLogsFile)
 	defer loggerMiddleware.Close()