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pages/static-ip-config: reorganize and delete some obsolete information #111

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Jul 27, 2020
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pages/static-ip-config: reorganize and delete some obsolete information #111

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pages/static-ip-config: move around useful information
dustymabe Jul 26, 2020
003bb1d
pages/static-ip-config: remove reference to bug 358
dustymabe Jul 26, 2020
4afe332
pages/static-ip-config: Remove note about initramfs network bringup
dustymabe Jul 26, 2020
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19 changes: 4 additions & 15 deletions modules/ROOT/pages/static-ip-config.adoc
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Expand Up @@ -4,7 +4,9 @@ By default, an FCOS instance will attempt to grab a DHCP address from the local

As with any custom configuration on FCOS, you can write specific files in the xref:ign-storage.adoc[`storage` node] of the Ignition file.

The following snippet shows how to assign the following to enp1s0:
The following snippet shows how to assign a static configuration to `enp1s0`:

NOTE: FCOS uses https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/[predictable interface names] by https://lists.fedoraproject.org/archives/list/[email protected]/thread/6IPTZL57Z5NLBMPYMXNVSYAGLRFZBLIP/[default]. Please take care to use the correct interface name for your hardware.

* static IP: `192.0.2.10/24`
* gateway: `192.0.2.1`
Expand Down Expand Up @@ -38,17 +40,4 @@ storage:
dns=192.168.124.1;1.1.1.1;8.8.8.8
dns-search=redhat.com
----
NOTE: During the initramfs portion of the boot process, dracut will attempt to grab a DHCP address. When it times out, Ignition will take over and write the above configuration into the filesystem.

If the interface does not come up correctly on first boot (see https://github.com/coreos/fedora-coreos-tracker/issues/358[tracker issue 358]), you have two possible workarounds.

. If you configured a username and password in your Ignition configuration, you can log in to the
host via the console and issue the following commands to force the static IP to take effect:

nmcli connection down enp1s0
nmcli connection up enp1s0

. If you are not able to access the host via the console, you can reboot the host and the static IP configuration will take effect.

Also, interfaces should be named based on the `predictable interface names`, if a user try to configure an interface using for intance `eth0` this change might not be taken into account.
Additional parameters can be found in the https://developer.gnome.org/NetworkManager/stable/settings-connection.html[NetworkManager] documentation.
NOTE: Additional parameters for NetworkManager key files can be found in the https://developer.gnome.org/NetworkManager/stable/settings-connection.html[NetworkManager documentation].