kubernetes dns with a patched hack/local-up-cluster.sh

gistfile1.txt

$ ~/dev/lib/kubernetes/cluster/kubectl.sh logs kube-dns-v8-rqehr kube2sky
I0713 05:43:34.025887       1 kube2sky.go:389] Etcd server found: http://127.0.0.1:4001
I0713 05:43:35.028313       1 kube2sky.go:455] Using http://127.0.0.1:8080 for kubernetes master
I0713 05:43:35.028353       1 kube2sky.go:456] Using kubernetes API v1
E0713 05:43:35.029755       1 reflector.go:136] Failed to list *api.Endpoints: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:35.030030       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:36.031475       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:36.032777       1 reflector.go:136] Failed to list *api.Endpoints: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:37.033914       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:37.035569       1 reflector.go:136] Failed to list *api.Endpoints: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:38.035001       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:38.036623       1 reflector.go:136] Failed to list *api.Endpoints: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:39.038011       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:39.038250       1 reflector.go:136] Failed to list *api.Endpoints: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value
E0713 05:43:40.039261       1 reflector.go:136] Failed to list *api.Service: couldn't get version/kind; json parse error: invalid character '<' looking for beginning of value

i got it working, the problem was

• kube2sky argument is -kube_master_url=http://127.0.0.1:8080, which doesnt work since 127.0.0.1 is the pod
• my host has ip-addr: 10.0.0.161 which overlaps with the service-ip-range 10.0.0.0/24

i solved it by

• putting an extra kube-proxy container into the skydns-rc (see examples/kubectl-container)
• setting the clusterIp in skydns-svc and kubelet-argument --cluster_dns to 10.100.0.10
• setting the service-ip-range to 10.100.0.0/24

note: first i tried to set --insecure_port=8080 and --insecure_bind_address=0.0.0.0 on the apiserver, instead of putting the kube-proxy container into the skydns-rc, which also works but exposes the apiserver publicly (which is suboptimal)

I have setup skydns in kubernetes 1.1 with flannel on centos 7. i am facing same issue. i deployed my cluster-ip with 10.254.0.100 ip address my portal not routable ip is 10.254.0.0/16