Don't set the hostname in the scope container when running with weavedns.

docker/entrypoint.sh

@@ -14,11 +14,6 @@ while true; do
             DNS_SERVER="$2"
             shift 2
             ;;
-        --hostname)
-            [ $# -gt 1 ] || usage
-            HOSTNAME="$2"
-            shift 2
-            ;;
         --searchpath)
             [ $# -gt 1 ] || usage
             SEARCHPATH="$2"
@@ -36,9 +31,4 @@ if [ -n "$DNS_SERVER" -a -n "$SEARCHPATH" ]; then
     echo "nameserver $DNS_SERVER" >>/etc/resolv.conf
 fi
 
-if [ -n "$HOSTNAME" ]; then
-    echo "$HOSTNAME" >/etc/hostname
-    hostname -F /etc/hostname
-fi
-
 exec /sbin/runsvdir /etc/service

scope

@@ -122,11 +122,10 @@ case "$COMMAND" in
 		check_not_running $CONTAINER_NAME $IMAGE
 
 		# If WeaveDNS is running, we want to automatically tell the scope
-		# image to use weave dns.  We can't use --dns or --hostname
-		# with --net=host, so we have to hack it.
+		# image to use weave dns.  We can't use --dns with --net=host, so we have to hack it.
 		if dns_running; then
 			docker_bridge_ip
-			WEAVESCOPE_DNS_ARGS="--dns $DOCKER_BRIDGE_IP --hostname $HOSTNAME --searchpath $DOMAINNAME"
+			WEAVESCOPE_DNS_ARGS="--dns $DOCKER_BRIDGE_IP --searchpath $DOMAINNAME"
 		fi
 
 		CONTAINER=$(docker run --privileged -d --name=$CONTAINER_NAME --net=host \