[ClusterLabs] Running shell command on remote node via corosync messaging infrastructure

[Ken Gaillot]

On Fri, 2020-12-18 at 17:51 +0000, Animesh Pande wrote:
> Hello,
> 
> Is there a tool that would allow for commands to be run on remote
> nodes in the cluster through the corosync messaging layer? I have a
> cluster configured with multiple corosync communication rings (public
> network and private network). I would like to be able to run a
> command on the remote node through corosync layer even when the
> communication ring associated with the public network goes down but
> the private network communication ring is still connected.
> 
> Please let me know if there is such a tool provided by corosync that
> I can use. 
> 
> Thank you for your time!
> 
> Best regards,
> Animesh

Hi,

No, there is not. I'm assuming you're using "remote" in the
conventional sense and not for Pacemaker Remote nodes, but the answer
is no either way. :)

Of course, you can configure sshd to listen on the cluster interface.
If you give the cluster interface on each node a unique name in DNS (or
hosts or whatever), you can ssh to that name.
-- 
Ken Gaillot <kgaillot at redhat.com>