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[PSUPCLPL-14594] Update IN with warnings about etc_hosts #594

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Feb 6, 2024
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[PSUPCLPL-14594] Update IN with warnings about etc_hosts #594

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7 changes: 6 additions & 1 deletion documentation/Installation.md
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Expand Up @@ -3110,15 +3110,20 @@ will lead to the following content of /etc/hosts:
...
```

**Warning**: The content of the user-defined `services.etc_hosts` section is not transmitted into the CoreDNS configmap. If you would like CoreDNS to have these records, put them into the [`services.coredns.configmap.Hosts` section](#configmap).


#### coredns

`coredns` parameter configures the Coredns service and its DNS rules in the Kubernetes cluster. It is divided into the following sections:

##### add_etc_hosts_generated

This is a boolean parameter defining whether IP addresses of the cluster nodes and their generated domain names should be added to `coredns.configmap.Hosts`.
This is a boolean parameter defining whether IP addresses of the cluster nodes and their generated domain names should be added to `services.coredns.configmap.Hosts`.
Default is `true`.

**Warning**: The `add_etc_hosts_generated: true` parameter doesn't add the user-defined hosts from `services.etc_hosts` to the CoreDNS configmap; if necessary, they must be added explicitly to `services.coredns.configmap.Hosts`.

##### configmap

This section contains the Configmap parameters that are applied to the Coredns service. By default the following configs are used:
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