Hi,
We are setting up a simple WSO2 Application Server cluster with one master
node and one worker node. This is done via spawning instances in OpenStack
cloud via python NovaClient API.
After spawning instances we need to get their ip addresses and use them to
fill puppet template values. (say master's ip address under members tag of
axis2.xml file in worker node [1]) But to copy template values, the
instances must be up and running.
We tackled this successfully with xml configuration file with a combination
of suspending and resuming newly spawned VM appserver instances via python.
The xml file contained all the configuration values required to fill the
puppet templates (axis2.xml.erb, carbon.xml.erb, etc...).
Now we have to try it without xml configuration and by only using puppet
configuration files. Our configuration information should be kept inside
puppet files.
We have a module called appserver inside /etc/puppet/modules/ in the
current setup.
current site.pp file contents in /etc/puppet/manifests
import 'appserver'
node 'appserver-mgr' {
include appserver::config_mgr}
node 'appserver-wkr' {
include appserver::config_wkr}
inside /etc/puppet/modules/appserver/manifests/ there are two configuration
files
config_mgr.pp
config_wkr.pp
We have not used init.pp.
1. How do we retrieve and keep ip addresses of newly spawned instances? Is
there a standard way?
2. What should be our approach in keeping cluster configuration data?
- Should we keep our cluster configuration inside *nodes.pp* file
itself?
- If so how to import the configuration to site.pp?
- Or should we keep our config information in *params.pp* file in
/modules/appserver/manifests location?
- If we follow this approach where should we keep the central
configuration file, if we use a mix of product clusters (AS and ESB)?
Please be kind enough to guide us through this scenario.
[1]
https://docs.wso2.com/display/CLUSTER420/Configuring+the+Worker+Node#ConfiguringtheWorkerNode-Settingupclusterconfigurationsfortheworkernodes
Thanks,
Suhan
--
Suhan Dharmasuriya
Software Engineer - Test Automation
*WSO2, Inc. *
lean . enterprise . middleware
Tel: +94 112 145345
Mob: +94 779 869138
Blog: http://suhan-opensource.blogspot.com/
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