try parsing advertised endpoint and fatal error if failing

Author: kvahed

main.go

@@ -26,6 +26,7 @@ import (
 	"context"
 	"fmt"
 	"io/ioutil"
+  "net/url"
 	"os"
 	"os/signal"
 	"path/filepath"
@@ -569,6 +570,11 @@ func mustPrepareService(generateAutoKeyFile bool) (*service.Service, service.Boo
 		log.Fatal().Err(err).Msgf("Unsupport image pull policy '%s'", dockerImagePullPolicy)
 	}
 
+	// Sanity checking URL scheme on advertised endpoints
+	if _, err := url.Parse(advertisedEndpoint); err != nil {
+		log.Fatal().Err(err).Msgf("Advertised cluster endpoint %s does not meet URL standards", advertisedEndpoint)
+	}
+
 	// Expand home-dis (~) in paths
 	arangodPath = mustExpand(arangodPath)
 	arangodJSPath = mustExpand(arangodJSPath)