define weavedns http port as a constant

nameserver/server.go

@@ -15,6 +15,7 @@ import (
 
 const (
 	DefaultServerPort = 53                 // The default server port
+	DefaultHTTPPort   = 6785               // The default http port
 	DefaultCLICfgFile = "/etc/resolv.conf" // default "resolv.conf" file to try to load
 	DefaultLocalTTL   = 30                 // default TTL for responses for local domain queries
 	DefaultUDPBuflen  = 4096               // bigger than the default 512

prog/weavedns/main.go

@@ -46,7 +46,7 @@ func main() {
 	flag.StringVar(&domain, "domain", weavedns.DefaultLocalDomain, "local domain (ie, 'weave.local.')")
 	flag.IntVar(&wait, "wait", 0, "number of seconds to wait for interface to be created and come up")
 	flag.IntVar(&dnsPort, "dnsport", weavedns.DefaultServerPort, "port to listen to DNS requests")
-	flag.IntVar(&httpPort, "httpport", 6785, "port to listen to HTTP requests")
+	flag.IntVar(&httpPort, "httpport", weavedns.DefaultHTTPPort, "port to listen to HTTP requests")
 	flag.IntVar(&cacheLen, "cache", weavedns.DefaultCacheLen, "cache length")
 	flag.IntVar(&ttl, "ttl", weavedns.DefaultLocalTTL, "TTL (in secs) for responses for local names")
 	flag.BoolVar(&watch, "watch", true, "watch the docker socket for container events")

proxy/create_container_interceptor.go

@@ -109,7 +109,7 @@ func (i *createContainerInterceptor) getDNSDomain() (domain string) {
 		return
 	}
 
-	url := fmt.Sprintf("http://%s:6785/domain", dnsContainer.NetworkSettings.IPAddress)
+	url := fmt.Sprintf("http://%s:%d/domain", dnsContainer.NetworkSettings.IPAddress, nameserver.DefaultHTTPPort)
 	resp, err := http.Get(url)
 	if err != nil || resp.StatusCode != http.StatusOK {
 		return