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计算节点
To install and configure the Compute hypervisor components
1.Install the packages:
yum install openstack-nova-compute sysfsutils
2.Edit the /etc/nova/nova.conf file and complete the following actions:
In the [DEFAULT] and [oslo_messaging_rabbit] sections, configure RabbitMQ message queue access:
[DEFAULT] ... rpc_backend = rabbit [oslo_messaging_rabbit] ... rabbit_host = controller rabbit_userid = openstack rabbit_password = RABBIT_PASS
Replace RABBIT_PASS with the password you chose for the openstack account in RabbitMQ.
In the [DEFAULT] and [keystone_authtoken] sections, configure Identity service access:
[DEFAULT] ... auth_strategy = keystone [keystone_authtoken] ... auth_uri = http://controller:5000 auth_url = http://controller:35357 auth_plugin = password project_domain_id = default user_domain_id = default project_name = service username = nova password = NOVA_PASS
Replace NOVA_PASS with the password you chose for the nova user in the Identity service.
注意：Comment out or remove any other options in the [keystone_authtoken] section.
In the [DEFAULT] section, configure the my_ip option:
[DEFAULT]
...
my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS
Replace MANAGEMENT_INTERFACE_IP_ADDRESS with the IP address of the management network interface on your compute node
In the [DEFAULT] section, enable and configure remote console access:
[DEFAULT] ... vnc_enabled = True vncserver_listen = 0.0.0.0 vncserver_proxyclient_address = MANAGEMENT_INTERFACE_IP_ADDRESS novncproxy_base_url = http://controller:6080/vnc_auto.html
The server component listens on all IP addresses and the proxy component only listens on the management interface IP address of the compute node. The base URL indicates the location where you can use a web browser to access remote consoles of instances on this compute node.
In the [glance] section, configure the location of the Image service:
[glance]
...
host = controller
In the [oslo_concurrency] section, configure the lock path:
[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp
(Optional) To assist with troubleshooting, enable verbose logging in the [DEFAULT] section:
[DEFAULT]
...
verbose = True
To finalize installation
1.Determine whether your compute node supports hardware acceleration for virtual machines:
egrep -c ‘(vmx|svm)‘ /proc/cpuinfo
If this command returns a value of one or greater, your compute node supports hardware acceleration which typically requires no additional configuration.
If this command returns a value of zero, your compute node does not support hardware acceleration and you must configure libvirt to use QEMU instead of KVM.
Edit the [libvirt] section in the /etc/nova/nova.conf file as follows:
[libvirt]
...
virt_type = qemu
2.Start the Compute service including its dependencies and configure them to start automatically when the system boots:
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl start libvirtd.service openstack-nova-compute.service
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原文地址：http://www.cnblogs.com/jim-hwg/p/5054118.html
