安装nova

在控制节点上执行

controllerHost='controller'
controllerIP='172.31.240.49'
MYSQL_PASSWD='m4r!adbOP'
RABBIT_PASSWD='0penstackRMQ'
NOVA_PASSWD='nova1234!'
PLACEMENT_PASSWD='placement1234!'

1.创建数据库

mysql -uroot -p${MYSQL_PASSWD} << EOF
     DROP DATABASE IF EXISTS nova;
     CREATE DATABASE nova;
     DROP DATABASE IF EXISTS nova_api;
     CREATE DATABASE nova_api;
     DROP DATABASE IF EXISTS nova_cell0;
     CREATE DATABASE nova_cell0;
     DROP DATABASE IF EXISTS placement;
     CREATE DATABASE placement;
     GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY '${NOVA_PASSWD}';
     GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'localhost' IDENTIFIED BY '${PLACEMENT_PASSWD}';
     GRANT ALL PRIVILEGES ON placement.* TO 'placement'@'%' IDENTIFIED BY '${PLACEMENT_PASSWD}';
EOF

2.创建认证用户并授权

openstack user create --domain default --password ${NOVA_PASSWD} nova
openstack role add --project service --user nova admin

openstack user create --domain default --password ${PLACEMENT_PASSWD} placement
openstack role add --project service --user placement admin

3.创建服务实体和端点

openstack service create --name nova --description "OpenStack Compute" compute
openstack endpoint create --region RegionOne compute public http://${controllerHost}:8774/v2.1
openstack endpoint create --region RegionOne compute internal http://${controllerHost}:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://${controllerHost}:8774/v2.1

openstack service create --name placement --description "Placement API" placement
openstack endpoint create --region RegionOne placement public http://${controllerHost}:8778
openstack endpoint create --region RegionOne placement internal http://${controllerHost}:8778
openstack endpoint create --region RegionOne placement admin http://${controllerHost}:8778

4.安装nova组件

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

5.配置nova服务访问数据库

openstack-config --set /etc/nova/nova.conf api_database connection mysql+pymysql://nova:${NOVA_PASSWD}@${controllerHost}/nova_api
openstack-config --set /etc/nova/nova.conf database connection mysql+pymysql://nova:${NOVA_PASSWD}@${controllerHost}/nova
openstack-config --set /etc/nova/nova.conf placement_database connection mysql+pymysql://placement:${PLACEMENT_PASSWD}@${controllerHost}/placement

6.配置nova服务访问memcached服务

openstack-config --set /etc/nova/nova.conf cache backend oslo_cache.memcache_pool
openstack-config --set /etc/nova/nova.conf cache enabled True
openstack-config --set /etc/nova/nova.conf cache memcache_servers ${controllerHost}:11211

7.配置nova服务访问rabbitmq服务

openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:${RABBIT_PASSWD}@${controllerHost}:5672

8.配置nova访问glance服务

openstack-config --set /etc/nova/nova.conf glance api_servers http://${controllerHost}:9292

9.配置nova服务访问认证服务

openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://${controllerHost}:5000/v3
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_type password
openstack-config --set /etc/nova/nova.conf keystone_authtoken project_domain_name Default
openstack-config --set /etc/nova/nova.conf keystone_authtoken user_domain_name Default
openstack-config --set /etc/nova/nova.conf keystone_authtoken project_name service
openstack-config --set /etc/nova/nova.conf keystone_authtoken username nova
openstack-config --set /etc/nova/nova.conf keystone_authtoken password ${NOVA_PASSWD}

10.配置统一资源管理placement服务访问认证服务

openstack-config --set /etc/nova/nova.conf placement auth_url http://${controllerHost}:5000/v3
openstack-config --set /etc/nova/nova.conf placement region_name RegionOne
openstack-config --set /etc/nova/nova.conf placement auth_type password
openstack-config --set /etc/nova/nova.conf placement project_domain_name Default
openstack-config --set /etc/nova/nova.conf placement user_domain_name Default
openstack-config --set /etc/nova/nova.conf placement project_name service
openstack-config --set /etc/nova/nova.conf placement username placement
openstack-config --set /etc/nova/nova.conf placement password ${PLACEMENT_PASSWD}

11.配置nova开启计算和元数据API服务

openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis osapi_compute,metadata

12.配置计算和元数据API服务的监听IP和端口

openstack-config --set /etc/nova/nova.conf DEFAULT osapi_compute_listen ${controllerIP}
openstack-config --set /etc/nova/nova.conf DEFAULT osapi_compute_listen_port 8774
openstack-config --set /etc/nova/nova.conf DEFAULT metadata_listen ${controllerIP}
openstack-config --set /etc/nova/nova.conf DEFAULT metadata_listen_port 8775

13.配置nova开启VNC代理服务

openstack-config --set /etc/nova/nova.conf vnc enabled true
openstack-config --set /etc/nova/nova.conf vnc server_listen ${controllerIP}
openstack-config --set /etc/nova/nova.conf vnc server_proxyclient_address ${controllerIP}
openstack-config --set /etc/nova/nova.conf vnc novncproxy_base_url http://${controllerIP}:6080/vnc_auto.html
openstack-config --set /etc/nova/nova.conf vnc novncproxy_host ${controllerIP}
openstack-config --set /etc/nova/nova.conf vnc novncproxy_port 6080

14.配置nova加载防火墙驱动程序

openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver

15.配置nova允许动态调整实例大小

openstack-config --set /etc/nova/nova.conf DEFAULT allow_resize_to_same_host True

16.配置nova使能自动发现并添加nova-compute服务到数据库cell中

#时间间隔单位是秒
openstack-config --set /etc/nova/nova.conf scheduler discover_hosts_in_cells_interval 300

17.配置nova中oslo库的锁定路径

openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp

18.配置placement服务的监听IP

sed -i "s/Listen 8778/Listen 0.0.0.0:8778/g" /etc/httpd/conf.d/00-nova-placement-api.conf
sed -i "s/*:8778/0.0.0.0:8778/g" /etc/httpd/conf.d/00-nova-placement-api.conf

19.解决placement启动配置中的bug

sed -i "/ErrorLogFormat/a\<Directory /usr/bin>\n\t<IfVersion >= 2.4>\n\t\tRequire all granted\n\t</IfVersion>\n\t<IfVersion < 2.4>\n\t\tOrder allow,deny\n\t\tAllow from all\n\t</IfVersion>\n</Directory>" /etc/httpd/conf.d/00-nova-placement-api.conf

20.同步数据库

su -s /bin/sh -c "nova-manage api_db sync" nova
su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova
su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova
su -s /bin/sh -c "nova-manage db sync" nova

21.启动nova服务

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

22.校验nova服务正常性

source ~/admin-openrc
openstack compute service list
openstack catalog list
openstack image list
nova-status upgrade check

23.创建flavor实例类型

openstack flavor create --id 1 --vcpus 2 --ram 4096 --disk 40 small.flavor
openstack flavor create --id 2 --vcpus 4 --ram 4096 --disk 40 medium.flavor
openstack flavor create --id 3 --vcpus 8 --ram 8192 --disk 40 large.flavor

24.手动发现并添加新加入的计算节点到数据库cell中

su -s /bin/sh -c "nova-manage cell_v2 discover_hosts --verbose" nova

在计算节点上执行

controllerHost='controller'
controllerVIP='172.31.240.49'
computeIP='172.31.240.45'
RABBIT_PASSWD='0penstackRMQ'
NOVA_PASSWD='nova1234!'
PLACEMENT_PASSWD='placement1234!'

1.安装nova组件

yum -y install openstack-nova-compute

2.配置nova访问memcached服务