PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should
refer to the docs that go with that version.
The latest 1.0.x release of this document can be found
[here](http://releases.k8s.io/release-1.0/docs/getting-started-guides/docker-multinode/deployDNS.md).
Documentation for other releases can be found at
[releases.k8s.io](http://releases.k8s.io).
--
## Deploy DNS
### Get the template file
First of all, download the template dns rc and svc file from
[skydns-rc template](skydns-rc.yaml.in)
[skydns-svc template](skydns-svc.yaml.in)
### Set env
Then you need to set `DNS_REPLICAS` , `DNS_DOMAIN` , `DNS_SERVER_IP` , `KUBE_SERVER` ENV.
```
$ export DNS_REPLICAS=1
$ export DNS_DOMAIN=cluster.local # specify in startup parameter `--cluster-domain` for containerized kubelet
$ export DNS_SERVER_IP=10.0.0.10 # specify in startup parameter `--cluster-dns` for containerized kubelet
$ export KUBE_SERVER=10.10.103.250 # your master server ip, you may change it
```
### Replace the corresponding value in the template.
```
$ sed -e "s/{{ pillar\['dns_replicas'\] }}/${DNS_REPLICAS}/g;s/{{ pillar\['dns_domain'\] }}/${DNS_DOMAIN}/g;s/{kube_server_url}/${KUBE_SERVER}/g;" skydns-rc.yaml.in > ./skydns-rc.yaml
$ sed -e "s/{{ pillar\['dns_server'\] }}/${DNS_SERVER_IP}/g" skydns-svc.yaml.in > ./skydns-svc.yaml
```
### Use `kubectl` to create skydns rc and service
```
$ kubectl -s "$KUBE_SERVER:8080" --namespace=kube-system create -f ./skydns-rc.yaml
$ kubectl -s "$KUBE_SERVER:8080" --namespace=kube-system create -f ./skydns-svc.yaml
```
### Test if DNS works
Follow [this link](../../../cluster/addons/dns/#how-do-i-test-if-it-is-working) to check it out.
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