Kubernetes Submit Queue 0144fae64f Merge pull request #29666 from vefimova/fix_29270 ...

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Fixed merging of host's and dns' search lines

Fixed forming of pod's Search line in resolv.conf:
 - exclude duplicates while merging of host's and dns' search lines to form pod's one
 - truncate pod's search line if it exceeds resolver limits: is > 255 chars and containes > 6 searches
 - monitoring the resolv.conf file which is used by kubelet (set thru --resolv-conf="") and logging and eventing if search line in it consists of more than 3 entries (or 6 if Cluster Domain is set) or its lenght is > 255 chars
 - logging and eventing when a pod's search line is > 255 chars or containes > 6 searches during forming

Fixes #29270

**Release note**:

```release-note
Fixed forming resolver search line for pods: exclude duplicates, obey libc limitations, logging and eventing appropriately.
```

2017-01-19 01:37:50 -08:00

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