openstack on centos 7.1（compute）

1.Install and configure controller node

Prerequisites

mysql -u root -p 

CREATE DATABASE nova_api;

CREATE DATABASE nova;

#Replace NOVA_DBPASS with a suitable password
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';

GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';

GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';

GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS';

. admin-openrc

openstack user create --domain default --password-prompt nova

openstack role add --project service --user nova admin

openstack service create --name nova --description "OpenStack Compute" compute

openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1/%\(tenant_id\)s

openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1/%\(tenant_id\)s

openstack endpoint create --region RegionOne compute admin http://controller:8774/v2.1/%\(tenant_id\)s

Install and configure components

yum install openstack-nova-api openstack-nova-conductor openstack-nova-console openstack-nova-novncproxy openstack-nova-scheduler

/etc/nova/nova.conf

[DEFAULT]
...
enabled_apis = osapi_compute,metadata
rpc_backend = rabbit
auth_strategy = keystone
my_ip = 10.0.0.11 #IP address of the controller node
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[api_database]
...
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api  #Replace NOVA_DBPASS with the password you chose for the Compute databases

[database]
...
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova

[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

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = 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

[vnc]
...
vncserver_listen = $my_ip
vncserver_proxyclient_address = $my_ip

[glance]
...
api_servers = http://controller:9292

[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

su -s /bin/sh -c "nova-manage api_db sync" nova

su -s /bin/sh -c "nova-manage db sync" nova

Finalize installation

systemctl enable openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

systemctl start openstack-nova-api.service openstack-nova-consoleauth.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service

2.Install and configure a compute node

Install and configure components

yum install openstack-nova-compute

/etc/nova/nova.conf

[DEFAULT]
...
rpc_backend = rabbit
auth_strategy = keystone
my_ip = MANAGEMENT_INTERFACE_IP_ADDRESS #Replace MANAGEMENT_INTERFACE_IP_ADDRESS with the IP address of the management network interface on your compute node
use_neutron = True
firewall_driver = nova.virt.firewall.NoopFirewallDriver

[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

[keystone_authtoken]
...
auth_uri = http://controller:5000
auth_url = http://controller:35357
memcached_servers = controller:11211
auth_type = password
project_domain_name = default
user_domain_name = 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

[vnc]
...
enabled = True
vncserver_listen = 0.0.0.0
vncserver_proxyclient_address = $my_ip
novncproxy_base_url = http://controller:6080/vnc_auto.html

[glance]
...
api_servers = http://controller:9292

[oslo_concurrency]
...
lock_path = /var/lib/nova/tmp

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

systemctl enable libvirtd.service openstack-nova-compute.service

systemctl enable libvirtd.service openstack-nova-compute.service