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Merge pull request #27815 from prameshj/patch-6 

Fix sed command for NodeLocalDNS yaml in IPVS mode.
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Kubernetes Prow Robot 2021-05-16 05:47:59 -07:00 committed by GitHub
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content/en/docs/tasks/administer-cluster/nodelocaldns.md
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@ -79,7 +79,7 @@ If you are using the sample manifest from the previous point, this will require
* If kube-proxy is running in IPVS mode:
``` bash
sed -i "s/__PILLAR__LOCAL__DNS__/$localdns/g; s/__PILLAR__DNS__DOMAIN__/$domain/g; s/__PILLAR__DNS__SERVER__//g; s/__PILLAR__CLUSTER__DNS__/$kubedns/g" nodelocaldns.yaml
sed -i "s/__PILLAR__LOCAL__DNS__/$localdns/g; s/__PILLAR__DNS__DOMAIN__/$domain/g; s/,__PILLAR__DNS__SERVER__//g; s/__PILLAR__CLUSTER__DNS__/$kubedns/g" nodelocaldns.yaml
```
In this mode, node-local-dns pods listen only on `<node-local-address>`. The node-local-dns interface cannot bind the kube-dns cluster IP since the interface used for IPVS loadbalancing already uses this address.
`__PILLAR__UPSTREAM__SERVERS__` will be populated by the node-local-dns pods.