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78 lines
3.1 KiB
Plaintext
78 lines
3.1 KiB
Plaintext
[[s-neutron-server]]
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==== Highly available OpenStack Networking Server
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OpenStack Networking is the network connectivity service in OpenStack.
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Making the OpenStack Networking Server service highly available in active / passive mode involves
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* configuring OpenStack Networking to listen on the VIP address,
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* managing OpenStack Networking API Server daemon with the Pacemaker cluster manager,
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* configuring OpenStack services to use this IP address.
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NOTE: Here is the http://docs.openstack.org/trunk/openstack-network/admin/content/index.html[documentation] for installing OpenStack Networking service.
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===== Adding OpenStack Networking Server resource to Pacemaker
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First of all, you need to download the resource agent to your system :
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----
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cd /usr/lib/ocf/resource.d/openstack
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wget https://raw.github.com/madkiss/openstack-resource-agents/master/ocf/neutron-server
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chmod a+rx *
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----
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You may now proceed with adding the Pacemaker configuration for
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OpenStack Networking Server resource. Connect to the Pacemaker cluster with +crm
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configure+, and add the following cluster resources:
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----
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include::includes/pacemaker-neutron_server.crm[]
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----
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This configuration creates +p_neutron-server+, a resource for manage OpenStack Networking Server service
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+crm configure+ supports batch input, so you may copy and paste the
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above into your live pacemaker configuration, and then make changes as
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required. For example, you may enter +edit p_neutron-server+ from the
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+crm configure+ menu and edit the resource to match your preferred
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virtual IP address.
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Once completed, commit your configuration changes by entering +commit+
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from the +crm configure+ menu. Pacemaker will then start the OpenStack Networking API
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service, and its dependent resources, on one of your nodes.
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===== Configuring OpenStack Networking Server
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Edit +/etc/neutron/neutron.conf+ :
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----
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# We bind the service to the VIP :
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bind_host = 192.168.42.103
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# We have to use MySQL connection to store datas :
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sql_connection = mysql://neutron:password@192.168.42.101/neutron
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# We bind OpenStack Networking Server to the VIP :
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bind_host = 192.168.42.103
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# We send notifications to Highly available RabbitMQ :
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notifier_strategy = rabbit
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rabbit_host = 192.168.42.102
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----
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===== Configuring OpenStack Services to use Highly available OpenStack Networking Server
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Your OpenStack services must now point their OpenStack Networking Server configuration to
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the highly available, virtual cluster IP address -- rather than a
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OpenStack Networking server's physical IP address as you normally would.
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For example, you should configure OpenStack Compute for using Highly Available OpenStack Networking Server in editing +nova.conf+ file :
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----
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neutron_url = http://192.168.42.103:9696
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----
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You need to create the OpenStack Networking Server Endpoint with this IP.
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NOTE : If you are using both private and public IP, you should create two Virtual IP and define your endpoint like this :
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----
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keystone endpoint-create --region $KEYSTONE_REGION --service-id $service-id --publicurl 'http://PUBLIC_VIP:9696/' --adminurl 'http://192.168.42.103:9696/' --internalurl 'http://192.168.42.103:9696/'
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----
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