On ke, 25 maalis 2020, None via FreeIPA-users wrote:
>This may be a bit of a strange scenario.
>
>Environment is a compute cluster (running xCAT 2.15)
>
>FreeIPA server is running on the cluster master node.
>
>FreeIPA clients are installed on all other nodes.  Compute nodes, login
>nodes, storage nodes, GPU nodes, etc.
>
>I created a script that installs the client packages and joins the realm
>after provisioning the OS.  That all works great on new hosts.
>
>My issue is that compute nodes are reinstalled on occasion.  Normally, that
>is a simple process.  Tell the cluster master to mark that host for
>install.  During the next PXE boot, that happens.   Problem is, if the node
>has already been part of the realm, it can't join, so that command fails.
>If I manually go into FreeIPA server and remove the node while it's
>reinstalling the OS, then the client script runs fine when that is complete.
>
>Is there a way to have a client execute a command to remove it's previous
>information before joining?

You can pass --force-join to ipa-client-install to force through the
already existing host.

Otherwise, you can run 'ipa-client-install --uninstall', that will
clear everthing.

--
/ Alexander Bokovoy
Sr. Principal Software Engineer
Security / Identity Management Engineering
Red Hat Limited, Finland