Merge pull request #2204 from weaveworks/issues/2193-dns-leak

Fixes #2123: Use ContainerID when restarting a container

test/100_cross_hosts_2_test.sh

@@ -30,6 +30,8 @@ assert_raises "exec_on $HOST1 c5 $PING $C6"
 # check that restart retains the same IP, and reclaims it in IPAM
 weave_on $HOST2 restart c6
 assert_raises "exec_on $HOST1 c5 $PING $C6"
+# check that restart does not create any additional DNS entry
+assert "weave_on $HOST2 report -f \"{{len .DNS.Entries}}\"" "6"
 sleep 31 # past the IPAM timeout
 start_container $HOST2 net:$SUBNET_2 --name=c7
 C7=$(container_ip $HOST2 c7)