On Tuesday, July 23, 2013 4:30:45 AM UTC-5, Klavs Klavsen wrote: > > > > Den mandag den 22. juli 2013 08.58.32 UTC+2 skrev George Brown: >> >> Hi Sneha, >> >> This is for a GPFS (IBM parallel file system) cluster. When a new client >> is added it needs to be added by an node that is already part of the >> cluster. I'm trying to automate this through puppet >> >> E.g. node80 has just been provisioned >> >> After installing the client packages I need to add the node from a server >> already in the cluster by running the following two commands >> >> mmaddnode -N node80 >> mmchlicense client --accept -N node80 >> >> Obviously I only want to have this exec run when a new host is added but >> I also only want it to execute for the newly added host (I don’t want it to >> run though nodes01-79 also). >> >> > Perhaps you could do an @@exec.. with a creates.. question is where it > actually runs the creates check (I'd assume it to be run where it is > collected). > That only depends on the commands above, actually creating a file > somewhere, so you can check for the existence of that file. Otherwise you > could do an unless instead (a bit more expensive and troublesome though) >
A 'creates' check is performed on the target node to which the Exec is applied, regardless of how that resource ended up in the node's catalog. For an exported resource, the parameter value is determined by the node that declares the resource, not the one that collects it (if they differ); the collecting node gets it as a literal string. Therefore, if there were a characteristic file created by the Exec for each node added to the cluster -- and that file was expected to be retained indefinately -- then a 'creates' parameter would be an appropriate way to model the system. Ideally, the new node would stop declaring the Exec once it was added. John -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to puppet-users+unsubscr...@googlegroups.com. To post to this group, send email to puppet-users@googlegroups.com. Visit this group at http://groups.google.com/group/puppet-users. For more options, visit https://groups.google.com/groups/opt_out.
