OpenStack O版搭建（三）：Compute节点部署

安装相关依赖包

yum install openstack-selinux python-openstackclient yum-plugin-priorities openstack-nova-compute openstack-utils ntpdate -y

配置nova.conf

cp /etc/nova/nova.conf /etc/nova/nova.conf.bak
>/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 10.1.1.121
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:devops@controller
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 devops
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
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 devops
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 0.0.0.0
openstack-config --set /etc/nova/nova.conf vnc vncserver_proxyclient_address 10.1.1.121
openstack-config --set /etc/nova/nova.conf vnc novncproxy_base_url http://192.168.0.120:6080/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

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

到controller上执行验证

source /root/admin-openrc
openstack compute service list

安装Neutron

安装相关软件包

yum install openstack-neutron-linuxbridge ebtables ipset -y

配置neutron.conf

cp /etc/neutron/neutron.conf /etc/neutron/neutron.conf.bak
>/etc/neutron/neutron.conf
openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone
openstack-config --set /etc/neutron/neutron.conf DEFAULT advertise_mtu True
openstack-config --set /etc/neutron/neutron.conf DEFAULT dhcp_agents_per_network 2
openstack-config --set /etc/neutron/neutron.conf DEFAULT control_exchange neutron
openstack-config --set /etc/neutron/neutron.conf DEFAULT nova_url http://controller:8774/v2
openstack-config --set /etc/neutron/neutron.conf DEFAULT transport_url rabbit://openstack:devops@controller
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_uri http://controller:5000
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_url http://controller:35357
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken memcached_servers controller:11211
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_type password
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken user_domain_name default
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken project_name service
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken username neutron
openstack-config --set /etc/neutron/neutron.conf keystone_authtoken password devops
openstack-config --set /etc/neutron/neutron.conf oslo_concurrency lock_path /var/lib/neutron/tmp

配置/etc/neutron/plugins/ml2/linuxbridge_agent.ini

openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan enable_vxlan True
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan local_ip 10.2.2.121
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini vxlan l2_population True
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup enable_security_group True
openstack-config --set /etc/neutron/plugins/ml2/linuxbridge_agent.ini securitygroup firewall_driver neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

配置nova.conf

openstack-config --set /etc/nova/nova.conf neutron url http://controller:9696
openstack-config --set /etc/nova/nova.conf neutron auth_url http://controller:35357
openstack-config --set /etc/nova/nova.conf neutron auth_type password
openstack-config --set /etc/nova/nova.conf neutron project_domain_name default
openstack-config --set /etc/nova/nova.conf neutron user_domain_name default
openstack-config --set /etc/nova/nova.conf neutron region_name RegionOne
openstack-config --set /etc/nova/nova.conf neutron project_name service
openstack-config --set /etc/nova/nova.conf neutron username neutron
openstack-config --set /etc/nova/nova.conf neutron password devops

重启和enable相关服务

systemctl restart libvirtd.service openstack-nova-compute.service
systemctl enable neutron-linuxbridge-agent.service
systemctl restart neutron-linuxbridge-agent.service
systemctl status libvirtd.service openstack-nova-compute.service neutron-linuxbridge-agent.service

计算节点结合Cinder

1）计算节点要是想用cinder,那么需要配置nova配置文件 (注意！这一步是在计算节点操作的）

openstack-config --set /etc/nova/nova.conf cinder os_region_name RegionOne
systemctl restart openstack-nova-compute.service

2）然后在controller上重启nova服务

systemctl restart openstack-nova-api.service
systemctl status openstack-nova-api.service

在controler上执行验证

source /root/admin-openrc
neutron agent-list
nova-manage cell_v2 discover_hosts

到此，Compute节点搭建完毕，运行nova host-list可以查看新加入的compute1节点
如果需要再添加另外一个compute节点，只要重复下第二大部即可，记得把计算机名和IP地址改下。

附-创建配额命令

openstack flavor create m1.tiny --id 1 --ram 512 --disk 1 --vcpus 1
openstack flavor create m1.small --id 2 --ram 2048 --disk 20 --vcpus 1
openstack flavor create m1.medium --id 3 --ram 4096 --disk 40 --vcpus 2
openstack flavor create m1.large --id 4 --ram 8192 --disk 80 --vcpus 4
openstack flavor create m1.xlarge --id 5 --ram 16384 --disk 160 --vcpus 8
openstack flavor list