openstack
/
puppet-openstack_extras
Code Issues Proposed changes

Add HA docs for pacemaker service provider 

This patch provides example HA configuration for
some Openstack services with pacemaker provider

related blueprint pacemaker-provider-for-openstack

Change-Id: I11cd533f1cffc9e6f015f0434c7b7423ed0cfc68
Signed-off-by: Bogdan Dobrelya <bdobrelia@mirantis.com>
Co-author: Javier Peña <jpena@redhat.com>
This commit is contained in:
Bogdan Dobrelya 2015-02-09 10:33:13 +01:00
parent 537ed9e375
commit 7f44ee9e40
2 changed files with 57 additions and 0 deletions
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56
README.md
View File

@ -53,6 +53,62 @@ Implementation
openstack_extras is a combination of Puppet manifest and ruby code to delivery
configuration and extra functionality through types and providers.
**HA configuration for Openstack services**
This module allows to configure Openstack services in HA. Please refer to the [ha-guide](http://docs.openstack.org/high-availability-guide/content/index.html) for details.
If you have a Corosync with Pacemaker cluster with several nodes joined, you may want to use an HA service provider which allows you to create the pacemaker resources for Openstack services and run them in HA mode.
The example HA service configuration for keystone service:
```puppet
openstack_extras::pacemaker::service { 'openstack-keystone' :
ensure => present,
metadata => {},
ms_metadata => {},
operations => {},
parameters => {},
primitive_class => 'systemd',
primitive_provider => false,
primitive_type => 'openstack-keystone',
use_handler => false,
clone => true,
require => Package['openstack-keystone']
}
```
This example will create a pacemaker clone resource named `p_openstack-keystone-clone` and will start it with the help of systemd.
And this example will create a resource `p_cinder-api-clone` for Cinder API service with the given OCF script template from some `cluster` module:
```puppet
$metadata = {
'resource-stickiness' => '1'
}
$operations = {
'monitor' => {
'interval' => '20',
'timeout' => '30',
},
'start' => {
'timeout' => '60',
},
'stop' => {
'timeout' => '60',
},
}
$ms_metadata = {
'interleave' => true,
}
openstack_extras::pacemaker::service { 'cinder-api' :
primitive_type => 'cinder-api',
metadata => $metadata,
ms_metadata => $ms_metadata,
operations => $operations,
clone => true,
ocf_script_template => 'cluster/cinder_api.ocf.erb',
}
```
Limitations
-----------

1
manifests/pacemaker/service.pp
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@ -105,6 +105,7 @@
# metadata => $metadata,
# ms_metadata => $ms_metadata,
# operations => $operations,
# clone => true,
# ocf_script_template => 'some_module/some_api_service.ocf.erb',
# }
#