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OpenStack Icehouse : Add Compute Nodes
2014/06/23 |
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Add Compute Nodes to run more instances.
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| [1] |
Install KVM Hypervisor first which needs on Compute Node.
It's unnecessarry to set Bridge networking on the section [2] of the link.
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| [2] | Install Nova-Compute, Nova-Network. If you use Neutron Networking, it's unnecessarry to include "openstack-nova-network" below. |
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[root@node01 ~]# yum --enablerepo=openstack-icehouse,epel -y install openstack-nova-compute openstack-nova-api openstack-nova-network
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| [3] | Configure Nova |
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[root@node01 ~]# mv /etc/nova/nova.conf /etc/nova/nova.conf.org
[root@node01 ~]#
vi /etc/nova/nova.conf # create new [DEFAULT] # RabbitMQ server's hostname or IP rabbit_host=10.0.0.30 rabbit_port=5672 # RabbitMQ server's user for auth rabbit_userid=guest # RabbitMQ server's password of above user for auth rabbit_password=password notification_driver=nova.openstack.common.notifier.rpc_notifier rpc_backend=rabbit # own IP address my_ip=10.0.0.51 # add if it's not need IPv6 use_ipv6=false state_path=/var/lib/nova enabled_apis=ec2,osapi_compute,metadata osapi_compute_listen=0.0.0.0 osapi_compute_listen_port=8774 rootwrap_config=/etc/nova/rootwrap.conf api_paste_config=api-paste.ini auth_strategy=keystone # Glance server's hostname or IP glance_host=10.0.0.30 glance_port=9292 glance_protocol=http lock_path=/var/lib/nova/tmp log_dir=/var/log/nova # Memcached server's hostname or IP memcached_servers=10.0.0.30:11211 scheduler_driver=nova.scheduler.filter_scheduler.FilterScheduler
[database]
# connection info for MariaDB connection=mysql://nova:password@10.0.0.30/nova
[keystone_authtoken]
# Keystone server's hostname or IP auth_host=10.0.0.30 auth_port=35357 auth_protocol=http auth_version=v2.0 admin_user=nova # Nova user's password added in Keystone admin_password=servicepassword admin_tenant_name=service signing_dir=/var/lib/nova/keystone-signing chmod 640 /etc/nova/nova.conf [root@node01 ~]# chgrp nova /etc/nova/nova.conf |
| [4] | Configure Networking. The follows is for the case you use legacy nova-network function. But if you use Neutron Networking function, Refer to here to configure it. Anyway, legacy nova-network function is officially not recommended. |
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[root@node01 ~]#
vi /etc/nova/nova.conf # add follows in [DEFAULT] section network_driver=nova.network.linux_net libvirt_vif_driver=nova.virt.libvirt.vif.LibvirtGenericVIFDriver linuxnet_interface_driver=nova.network.linux_net.LinuxBridgeInterfaceDriver firewall_driver=nova.virt.libvirt.firewall.IptablesFirewallDriver network_api_class=nova.network.api.API security_group_api=nova network_manager=nova.network.manager.FlatDHCPManager network_size=254 allow_same_net_traffic=False multi_host=True send_arp_for_ha=True share_dhcp_address=True force_dhcp_release=True # Nova API server's hostname or IP address metadata_host=10.0.0.30 # specify nic for public public_interface=eth0 # specify any name for bridge flat_network_bridge=br100 # specify nic for flat DHCP bridge flat_interface=lo |
| [5] | Start Nova Service. If you don't use legacy nova-network, exclude the word "network" below. |
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[root@node01 ~]# for service in metadata-api compute network; do /etc/rc.d/init.d/openstack-nova-$service start chkconfig openstack-nova-$service on done Starting openstack-nova-metadata-api: [ OK ] Starting openstack-nova-compute: [ OK ] Starting openstack-nova-network: [ OK ] # show status [root@node01 ~]# nova-manage service list Binary Host Zone Status State Updated_At nova-conductor dlp.srv.world internal enabled :-) 2014-05-07 16:05:10 nova-scheduler dlp.srv.world internal enabled :-) 2014-05-07 16:05:11 nova-consoleauth dlp.srv.world internal enabled :-) 2014-05-07 16:05:11 nova-network dlp.srv.world internal enabled :-) 2014-05-07 16:05:13 nova-compute dlp.srv.world nova enabled :-) 2014-05-07 16:05:12 nova-cert dlp.srv.world internal enabled :-) 2014-05-07 16:05:11 nova-network node01.srv.world internal enabled :-) 2014-05-07 16:05:10 nova-compute node01.srv.world nova enabled :-) 2014-05-07 16:05:11 |