41 lines
1.0 KiB
Markdown
41 lines
1.0 KiB
Markdown
# Deploying the Cluster DNS Add-on
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In this lab you will deploy the DNS add-on which is required for every Kubernetes cluster. Without the DNS add-on the following things will not work:
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* DNS based service discovery
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* DNS lookups from containers running in pods
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## Cluster DNS Add-on
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### Create the `skydns` service:
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```
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kubectl create -f https://raw.githubusercontent.com/kelseyhightower/kubernetes-the-hard-way/master/skydns-svc.yaml
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```
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#### Verification
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```
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kubectl --namespace=kube-system get svc
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```
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```
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NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE
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kube-dns 10.32.0.10 <none> 53/UDP,53/TCP 1m
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```
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### Create the `skydns` replication controller:
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```
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kubectl create -f https://raw.githubusercontent.com/kelseyhightower/kubernetes-the-hard-way/master/skydns-rc.yaml
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```
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#### Verification
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```
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kubectl --namespace=kube-system get pods
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```
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```
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NAME READY STATUS RESTARTS AGE
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kube-dns-v18-79maa 3/3 Running 0 41s
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kube-dns-v18-bcs1f 3/3 Running 0 41s
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``` |