openstack（四、nova)

六、计算服务(nova)

1、准备环境：

Create the nova_api, nova, and nova_cell0 databases:

CREATE DATABASE nova_api;
 CREATE DATABASE nova;
 CREATE DATABASE nova_cell0;
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_api.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' \
  IDENTIFIED BY 'nova';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' \
  IDENTIFIED BY 'nova';

2、创建nova用户并关联service项目

openstack user create --domain default --password=nova 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
openstack endpoint create --region RegionOne \
  compute internal http://controller:8774/v2.1
openstack endpoint create --region RegionOne \
  compute admin http://controller:8774/v2.1
openstack user create --domain default --password=placement placement
openstack role add --project service --user placement admin
openstack service create --name placement --description "Placement API" placement
openstack endpoint create --region RegionOne placement public http://controller:8778
openstack endpoint create --region RegionOne placement internal http://controller:8778
openstack endpoint create --region RegionOne placement admin http://controller:8778

3、安装软件包

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

修改配置文件 /etc/nova/nova.conf

openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis osapi_compute,metadata
openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.100.100
openstack-config --set /etc/nova/nova.conf DEFAULT use_neutron True
openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:openstack@controller
openstack-config --set /etc/nova/nova.conf database connection mysql+pymysql://nova:nova@controller/nova
openstack-config --set /etc/nova/nova.conf api_database connection mysql+pymysql://nova:nova@controller/nova_api
openstack-config --set /etc/nova/nova.conf scheduler discover_hosts_in_cells_interval 60
openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://controller:35357
openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers controller:11211
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
openstack-config --set /etc/nova/nova.conf keystone_authtoken service_token_roles_required True
openstack-config --set /etc/nova/nova.conf vnc enabled true
openstack-config --set /etc/nova/nova.conf vnc vncserver_listen 192.168.100.100
openstack-config --set /etc/nova/nova.conf vnc vncserver_proxyclient_address 192.168.100.100
openstack-config --set /etc/nova/nova.conf glance api_servers http://controller:9292
openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp

##把placement 整合到nova.conf里
openstack-config --set /etc/nova/nova.conf placement auth_url http://controller:35357/v3
openstack-config --set /etc/nova/nova.conf placement memcached_servers controller:11211
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
openstack-config --set /etc/nova/nova.conf placement os_region_name RegionOne

enable access to the Placement API by adding the following configuration to
vim /etc/httpd/conf.d/00-nova-placement-api.conf

   = 2.4>
      Require all granted
   
   
      Order allow,deny
      Allow from all
   

systemctl restart httpd

4、同步数据库

su -s /bin/sh -c "nova-manage api_db sync" nova #Populate the nova-api database
su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova #Register the cell0 database
su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova #Create the cell1 cell
su -s /bin/sh -c "nova-manage db sync" nova #Populate the nova database
nova-manage cell_v2 list_cells #Verify nova cell0 and cell1 are registered correctly

5、启动服务

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
systemctl stop openstack-nova-api.service \
  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
  openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl restart openstack-nova-api.service \
  openstack-nova-consoleauth.service openstack-nova-scheduler.service \
  openstack-nova-conductor.service openstack-nova-novncproxy.service

6、在节点上安装

主要是qemu这个安装包没有，从阿里镜像下载
yum源：https://mirrors.aliyun.com/centos/7.4.1708/virt/x86_64/kvm-common/

yum install openstack-nova-compute 

/etc/nova/nova.conf

openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.100.98
openstack-config --set /etc/nova/nova.conf DEFAULT use_neutron True
openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:openstack@controller
openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://controller:35357
openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers controller:11211
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
openstack-config --set /etc/nova/nova.conf placement auth_uri http://controller:5000
openstack-config --set /etc/nova/nova.conf placement auth_url http://controller:35357/v3
openstack-config --set /etc/nova/nova.conf placement memcached_servers controller:11211
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
openstack-config --set /etc/nova/nova.conf placement os_region_name RegionOne
openstack-config --set /etc/nova/nova.conf vnc enabled True
openstack-config --set /etc/nova/nova.conf vnc keymap en-us
openstack-config --set /etc/nova/nova.conf vnc vncserver_listen 192.168.100.98
openstack-config --set /etc/nova/nova.conf vnc vncserver_proxyclient_address 192.168.100.98
openstack-config --set /etc/nova/nova.conf vnc novncproxy_base_url http://192.168.100.100:6080/vnc_auto.html
openstack-config --set /etc/nova/nova.conf glance api_servers http://controller:9292
openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
openstack-config --set /etc/nova/nova.conf libvirt virt_type qemu

设置libvirtd.service 和openstack-nova-compute.service开机启动
chmod 777 /var/run/libvirt/libvirt-sock

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

8、到controller上执行验证

source /root/admin-openrc
openstack compute service list