[Linux-HA] how to config a 3+1 cluster .

[Alan Robertson]

Huang Mingyou wrote:
> hello,
>    now I have another  trouble. in our cluster the ip resources is not
> the private ip ,and the default route will depend on it. if the ip is
> release,the route will release.have some  resources script to do
> route?  in our test cluster, I add one command in the IPaddr2 shell
> script,but I think this is not a good idea.


You're right.  That's not a good idea.

We don't have a default route resource agent.  You could take the 
command you added to IPaddr2, and then write your own resource agent 
around this command.

If you want it to be an OCF resource agent (which I would suggest), then 
you need to write these actions:

	start		save old route and set new one
	stop		restore old default route
	monitor		see if route is still there
	metadata	return information about this resource agent

The following are optional:
	verify-all	tell if parameters are all present and legal
	status 		(status is required for LSB compliance)
			can be the same action as monitor.
			Return codes for error cases technically should
			be slightly different.

Hope this helps.

-- 
     Alan Robertson <alanr at unix.sh>

"Openness is the foundation and preservative of friendship...  Let me 
claim from you at all times your undisguised opinions." - William 
Wilberforce