openstack篇 NOVA组件概念和部署
Posted 鹧鸪鹄
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文章目录
一、NOVA组件概念
Nova分为控制节点、计算节点
Nova组件核心功能是调度资源,在配置文件中需要体现的部分:指向认证节点位置(URL、ENDPOINT)、调用服务、注册、提供支持等,配置文件中的所有配置参数基本都是围绕此范围(对实例生命周期管理)进行设置
二 部署
资源配置
控制节点ct
nova-api(nova主服务)
nova-scheduler(nova调度服务)
nova-conductor(nova数据库服务,提供数据库访问)
nova-novncproxy(nova的vnc服务,提供实例的控制台)
计算节点c1、c2
nova-compute(nova计算服务)
数据库授权和创建库
create database nova_api;
create database nova;
create database nova_cell0; 创建对应的数据库
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';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'localhost' IDENTIFIED BY 'NOVA_DBPASS';
GRANT ALL PRIVILEGES ON nova_cell0.* TO 'nova'@'%' IDENTIFIED BY 'NOVA_DBPASS'; 授权
flush privileges; 刷新权限
exit
管理NOVA的用户和服务
openstack user create --domain default --password NOVA_PASS nova 创建NOVA组件用户用户
openstack role add --project service --user nova admin 添加管理员权限并加入服务
openstack service create --name nova --description "OpenStack Compute" compute 创建openstack服务
openstack endpoint create --region RegionOne compute public http://ct:8774/v2.1 关联端点
openstack endpoint create --region RegionOne compute internal http://ct:8774/v2.1
openstack endpoint create --region RegionOne compute admin http://ct:8774/v2.1
安装NOVA组件
yum -y install openstack-nova-api openstack-nova-conductor openstack-nova-novncproxy openstack-nova-scheduler
cp -a /etc/nova/nova.conf{,.bak} 备份配置文件
传参
grep -Ev '^$|#' /etc/nova/nova.conf.bak > /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 my_ip 192.168.40.10
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:RABBIT_PASS@ct
openstack-config --set /etc/nova/nova.conf api_database connection mysql+pymysql://nova:NOVA_DBPASS@ct/nova_api
openstack-config --set /etc/nova/nova.conf database connection mysql+pymysql://nova:NOVA_DBPASS@ct/nova
openstack-config --set /etc/nova/nova.conf placement_database connection mysql+pymysql://placement:PLACEMENT_DBPASS@ct/placement
openstack-config --set /etc/nova/nova.conf api auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://ct:5000/v3
openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers ct: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_PASS
openstack-config --set /etc/nova/nova.conf vnc enabled true
openstack-config --set /etc/nova/nova.conf vnc server_listen ' $my_ip'
openstack-config --set /etc/nova/nova.conf vnc server_proxyclient_address ' $my_ip'
openstack-config --set /etc/nova/nova.conf glance api_servers http://ct:9292
openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
openstack-config --set /etc/nova/nova.conf placement region_name RegionOne
openstack-config --set /etc/nova/nova.conf placement project_domain_name Default
openstack-config --set /etc/nova/nova.conf placement project_name service
openstack-config --set /etc/nova/nova.conf placement auth_type password
openstack-config --set /etc/nova/nova.conf placement user_domain_name Default
openstack-config --set /etc/nova/nova.conf placement auth_url http://ct:5000/v3
openstack-config --set /etc/nova/nova.conf placement username placement
openstack-config --set /etc/nova/nova.conf placement password PLACEMENT_PASS
cat /etc/nova/nova.conf 查看参数
初始化数据库
su -s /bin/sh -c "nova-manage api_db sync" nova
su -s /bin/sh -c "nova-manage cell_v2 map_cell0" nova
su -s /bin/sh -c "nova-manage cell_v2 create_cell --name=cell1 --verbose" nova 创建cell单元格
su -s /bin/sh -c "nova-manage db sync" nova 同步数据到数据库
su -s /bin/sh -c "nova-manage cell_v2 list_cells" nova 检查cell0
和1是否成功
tail -f /var/log/nova/nova-manage.log 查看日志
启动NOVA服务
systemctl enable openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
systemctl start openstack-nova-api.service openstack-nova-scheduler.service openstack-nova-conductor.service openstack-nova-novncproxy.service
netstat -tnlup|egrep '8774|8775' 查看端口
curl http://ct:8774
计算节点安装NOVA服务
yum -y install openstack-nova-compute
cp -a /etc/nova/nova.conf{,.bak}
grep -Ev '^$|#' /etc/nova/nova.conf.bak > /etc/nova/nova.conf
传参 两台服务器IP地址不一样
openstack-config --set /etc/nova/nova.conf DEFAULT enabled_apis osapi_compute,metadata
openstack-config --set /etc/nova/nova.conf DEFAULT transport_url rabbit://openstack:RABBIT_PASS@ct
openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.40.11
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 api auth_strategy keystone
openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_url http://ct:5000/v3
openstack-config --set /etc/nova/nova.conf keystone_authtoken memcached_servers ct: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_PASS
openstack-config --set /etc/nova/nova.conf vnc enabled true
openstack-config --set /etc/nova/nova.conf vnc server_listen 0.0.0.0
openstack-config --set /etc/nova/nova.conf vnc server_proxyclient_address ' $my_ip'
openstack-config --set /etc/nova/nova.conf vnc novncproxy_base_url http://192.168.1.250:6080/vnc_auto.html
openstack-config --set /etc/nova/nova.conf glance api_servers http://ct:9292
openstack-config --set /etc/nova/nova.conf oslo_concurrency lock_path /var/lib/nova/tmp
openstack-config --set /etc/nova/nova.conf placement region_name RegionOne
openstack-config --set /etc/nova/nova.conf placement project_domain_name Default
openstack-config --set /etc/nova/nova.conf placement project_name service
openstack-config --set /etc/nova/nova.conf placement auth_type password
openstack-config --set /etc/nova/nova.conf placement user_domain_name Default
openstack-config --set /etc/nova/nova.conf placement auth_url http://ct:5000/v3
openstack-config --set /etc/nova/nova.conf placement username placement
openstack-config --set /etc/nova/nova.conf placement password PLACEMENT_PASS
openstack-config --set /etc/nova/nova.conf libvirt virt_type qemu
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl start libvirtd.service openstack-nova-compute.service
开启服务
systemctl enable libvirtd.service openstack-nova-compute.service
systemctl start libvirtd.service openstack-nova-compute.service
在控制节点测试计算节点
openstack compute service list --service nova-compute
扫描当前有几个可用的计算节点
#扫描到可用节点后,会将其创建到cell中,后续就可以在cell中创建虚拟机
su -s /bin/sh -c “nova-manage cell_v2 discover_hosts --verbose” nova
修改控制nova的配置文件
vim /etc/nova/nova.conf
[scheduler]
#每300秒扫描一次
discover_hosts_in_cells_interval = 300
systemctl restart openstack-nova-api.service
验证计算节点服务
openstack compute service list
查看各个组件API是否正常
openstack catalog list
查看镜像
openstack image list
查看cell API和Placement API是否正常
nova-status upgrade check
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