OpenStack Liberty : Add Compute Nodes
2015/11/15 |
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. |
[2] | Install Nova-Compute, Nova-Network. If you use Neutron Networking, it's unnecessarry to include "openstack-nova-network" below. |
[root@node01 ~]# yum --enablerepo=centos-openstack-liberty,epel -y install openstack-nova-compute openstack-nova-api openstack-nova-network
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[3] | Configure Nova. |
[root@node01 ~]# mv /etc/nova/nova.conf /etc/nova/nova.conf.org
[root@node01 ~]#
vi /etc/nova/nova.conf # create new [DEFAULT] # 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 log_dir=/var/log/nova # specify Memcached server memcached_servers=10.0.0.30:11211 scheduler_driver=nova.scheduler.filter_scheduler.FilterScheduler notification_driver=nova.openstack.common.notifier.rpc_notifier rpc_backend=rabbit # Glance server connection info [glance] host=10.0.0.30 port=9292 protocol=http
[oslo_concurrency]
lock_path=/var/lib/nova/tmp # RabbitMQ server connection info [oslo_messaging_rabbit] rabbit_host=10.0.0.30 rabbit_port=5672 rabbit_userid=guest rabbit_password=password # MariaDB server connection info [database] connection=mysql://nova:password@10.0.0.30/nova # Keystone server connection info [keystone_authtoken] auth_uri=http://10.0.0.30:5000 auth_url=http://10.0.0.30:35357 auth_plugin=password project_domain_id=default user_domain_id=default project_name=service username=nova password=servicepassword 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. |
[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=eno16777736 # specify any name for bridge flat_network_bridge=br100 # specify nic for flat DHCP bridge flat_interface=dummy0 # add a dummy interface which is for the flat DHCP bridge
[root@node01 ~]#
[root@node01 ~]# cat > /etc/sysconfig/network-scripts/ifcfg-dummy0 <<EOF
DEVICE=dummy0 BOOTPROTO=none ONBOOT=yes TYPE=Ethernet NM_CONTROLLED=no EOF echo "alias dummy0 dummy" > /etc/modprobe.d/dummy.conf [root@node01 ~]# ifup dummy0 |
[5] | Start Nova Service. If you don't use legacy nova-network, exclude the word "network" below. |
[root@node01 ~]#
for service in metadata-api compute network; do
systemctl start openstack-nova-$service systemctl enable openstack-nova-$service done # show status [root@node01 ~]# nova-manage service list Binary Host Zone Status State Updated_At nova-cert dlp.srv.world internal enabled :-) 2015-11-14 12:59:50 nova-consoleauth dlp.srv.world internal enabled :-) 2015-11-14 12:59:52 nova-conductor dlp.srv.world internal enabled :-) 2015-11-14 12:59:54 nova-scheduler dlp.srv.world internal enabled :-) 2015-11-14 12:59:50 nova-compute dlp.srv.world nova enabled :-) 2015-11-14 12:59:50 nova-network dlp.srv.world internal enabled :-) 2015-11-14 12:59:52 nova-compute node01.srv.world nova enabled :-) 2015-11-14 12:59:51 nova-network node01.srv.world internal enabled :-) 2015-11-14 12:59:54 |