On Mon, Mar 19, 2012 at 9:00 PM, Phil Frost <p...@macprofessionals.com> wrote: > On Mar 19, 2012, at 15:22 , Florian Haas wrote: >> On Mon, Mar 19, 2012 at 8:00 PM, Phil Frost <p...@macprofessionals.com> >> wrote: >>> I'm attempting to automate my cluster configuration with Puppet. I'm >>> already using Puppet to manage the configuration of my Xen domains. I'd >>> like to instruct puppet to apply the configuration (via cibadmin) to a >>> shadow config, but I can't find any sure way to do this. The issue is that >>> running "crm_shadow --create ..." starts a subshell, but there's no easy >>> way I can tell puppet to run a command, then run another command in the >>> subshell it creates. >>> >>> Normally I'd expect some command-line option, but I can't find any. It does >>> look like it sets the environment variable "CIB_shadow". Is that all there >>> is to it? Is it safe to rely on that behavior? >> >> I've never tried this specific use case, so bear with me while I go >> out on a limb, but the crm shell is fully scriptable. Thus you >> *should* be able to generate a full-blown crm script, with "cib foo" >> commands and whathaveyou, in a temporary file, and then just do "crm < >> /path/to/temp/file". Does that work for you? > > > I don't think so, because the crm shell, unlike cibadmin, has no idempotent > method of configuration I've found. With cibadmin, I can generate the > configuration for the primitive and associated location constraints for each > Xen domain in one XML file, and feed it cibadmin -M as many times as I want > without error. I know that by running that command, the resulting > configuration is what I had in the file, regardless if the configuration > already existed, did not exist, or existed but some parameters were different. > > To do this with with crm, I'd have to also write code which checks if things > are configured as I want them, then take different actions if it doesn't > exist, already exists, or already exists but has the incorrect value. That's > not impossible, but it's far harder to develop and quite likely I'll make an > error in all that logic that will automate the destruction of my cluster.
Huh? What's wrong with "crm configure load replace <somefile>"? Anyhow, I think you haven't really stated what you are trying to achieve, in detail. So: what is it that you want to do exactly? Florian -- Need help with High Availability? http://www.hastexo.com/now _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
