Compute服务与其他OpenStack服务协作，协调各种工作，是OpenStack的核心服务，这里需要操作Controller和Compute两个节点。
1. Controller节点配置
创建数据库(注意替换NOVA_DBPASS)
mysql -u root -p
MariaDB [(none)]> CREATE DATABASE nova_api;
MariaDB [(none)]> CREATE DATABASE nova;
MariaDB [(none)]> CREATE DATABASE nova_cell0;
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
IDENTIFIED BY 'NOVA_DBPASS';
MariaDB [(none)]> GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
IDENTIFIED BY 'NOVA_DBPASS';加载环境变量
. admin-openrc创建用户并加入角色
openstack user create --domain default --password-prompt nova
openstack role add --project service --user nova admin创建服务
openstack service create --name nova --description "OpenStack Compute" compute创建api节点
openstack endpoint create --region RegionOne compute public http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://controller:8774/v2.1安装相应的程序
sudo apt-get install nova-api nova-conductor nova-novncproxy nova-scheduler修改配置文件
sudo vim /etc/nova/nova.conf修改api_database和database(注意替换NOVA_DBPASS)
[api_database]
# ...
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova_api
[database]
# ...
connection = mysql+pymysql://nova:NOVA_DBPASS@controller/nova修改Default(注意替换RABBIT_PASS)
[DEFAULT]
# ...
# log_dir = /var/log/nova(一定注释掉)
transport_url = rabbit://openstack:RABBIT_PASS@controller:5672/
my_ip = 10.0.0.211修改api和keystone_authtoken
[api]
# ...
auth_strategy = keystone
[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000/
auth_url = http://controller:5000/
memcached_servers = controller:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_PASS修改neutron(注意替换NEUTRON_PASS和METADATA_SECRET)
[neutron]
# ...
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = NEUTRON_PASS
service_metadata_proxy = true
metadata_proxy_shared_secret = METADATA_SECRET为之后对接neutron准备，METADATA_SECRET可以通过以下命令生成
openssl rand -hex 10修改vnc
[vnc]
# ...
enabled = true
server_listen = $my_ip
server_proxyclient_address = $my_ip修改glance
[glance]
# ...
api_servers = http://controller:9292修改oslo_concurrency
[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp修改placement(注意替换PLACEMENT_PASS)
[placement]
# ...
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = PLACEMENT_PASS创建数据库
sudo su -s /bin/sh -c "nova-manage api_db sync" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
sudo su -s /bin/sh -c "nova-manage db sync" nova
sudo su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova重启服务
sudo systemctl restart nova-api
sudo systemctl enable nova-api
sudo systemctl restart nova-scheduler
sudo systemctl enable nova-scheduler
sudo systemctl restart nova-conductor
sudo systemctl enable nova-conductor
sudo systemctl restart nova-novncproxy
sudo systemctl enable nova-novncproxy2. Compute节点配置
安装服务
sudo apt-get install nova-compute修改配置文件
sudo vim /etc/nova/nova.conf修改Default(注意替换RABBIT_PASS)
[DEFAULT]
# ...
transport_url = rabbit://openstack:RABBIT_PASS@controller
my_ip = 10.0.0.213修改api和keystone_authtoken(注意替换NOVA_PASS)
[api]
# ...
auth_strategy = keystone
[keystone_authtoken]
# ...
www_authenticate_uri = http://controller:5000/
auth_url = http://controller:5000/
memcached_servers = controller:11211
auth_type = password
project_domain_name = Default
user_domain_name = Default
project_name = service
username = nova
password = NOVA_PASS修改neutron(注意替换NEUTRON_PASS)
[neutron]
# ...
auth_url = http://controller:5000
auth_type = password
project_domain_name = default
user_domain_name = default
region_name = RegionOne
project_name = service
username = neutron
password = NEUTRON_PASS修改vnc，CONTROLLER_MANAGEMENT_IP替换为controller节点的内部IP
[vnc]
# ...
enabled = true
server_listen = 0.0.0.0
server_proxyclient_address = $my_ip
novncproxy_base_url = http://CONTROLLER_MANAGEMENT_IP:6080/vnc_auto.html修改glance
[glance]
# ...
api_servers = http://controller:9292修改oslo_concurrency
[oslo_concurrency]
# ...
lock_path = /var/lib/nova/tmp修改placement(注意替换PLACEMENT_PASS)
[placement]
# ...
region_name = RegionOne
project_domain_name = Default
project_name = service
auth_type = password
user_domain_name = Default
auth_url = http://controller:5000/v3
username = placement
password = PLACEMENT_PASS查看主机是否支持硬件加速
egrep -c '(vmx|svm)' /proc/cpuinfo如果返回0就是不支持，修改配置文件
sudo vim /etc/nova/nova-compute.conf修改libvirt
[libvirt]
# ...
virt_type = qemu重启服务
sudo systemctl restart nova-compute.service
sudo systemctl enable nova-compute.service将Compute节点加入Cell数据库(Controller节点运行)
. admin-openrc
sudo su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova3. 验证服务
. admin-openrc
openstack compute service list
openstack catalog list
openstack image list
sudo nova-status upgrade check