I am setting up skydns for kubernetes following this template http://kubernetes.io/docs/getting-started-guides/docker-multinode/skydns.yaml.in. But it is not able to resolve dns. After looking for solutions also added -kube_master_url in kube2sky arguments but still the same issue. Here is the skydns logs:

2016/04/23 02:49:26 skydns: falling back to default configuration,  could not read from etcd: 501: All the given peers are not reachable (failed to propose on members [http://127.0.0.1:4001] twice [last error: Get http://127.0.0.1:4001/v2/keys/skydns/config?quorum=false&recursive=false&sorted=false: dial tcp 127.0.0.1:4001: connection refused]) [0]
2016/04/23 02:49:26 skydns: ready for queries on cluster.local. for tcp://0.0.0.0:53 [rcache 0]
2016/04/23 02:49:26 skydns: ready for queries on cluster.local. for udp://0.0.0.0:53 [rcache 0]
2016/04/23 02:49:33 skydns: error from backend: 501: All the given peers are not reachable (failed to propose on members [http://127.0.0.1:4001] twice [last error: Get http://127.0.0.1:4001/v2/keys/skydns/local/cluster/svc/default/kubernetes?quorum=false&recursive=true&sorted=false: dial tcp 127.0.0.1:4001: connection refused]) [0]

Any pointers? Kube2sky logs:

I0423 02:49:39.286489       1 kube2sky.go:436] Etcd server found:  http://127.0.0.1:4001
I0423 02:49:40.295909       1 kube2sky.go:503] Using http://172.17.0.1:8080 for kubernetes master
I0423 02:49:40.296183       1 kube2sky.go:504] Using kubernetes API v1