openstack（云主机热迁移）

Openstack,nova主机要修改/etc/hosts

[root@openstack ~]# cat /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.6.126 openstack

192.168.6.164 nova

 

修改openstack主机上的answer.ini文件中的98行和102行

[root@openstack ~]# vim answer.ini

CONFIG_COMPUTE_HOSTS=192.168.6.126,192.168.6.164

 

# List of servers on which to install the network service such as

# Compute networking (nova network) or OpenStack Networking (neutron).

CONFIG_NETWORK_HOSTS=192.168.6.126,192.168.6.164

[root@openstack ~]# packstack --answer-file=answer.ini

Welcome to the Packstack setup utility

 

The installation log file is available at: /var/tmp/packstack/20180725-074943-N6JSe6/openstack-setup.log

 

Installing:

Clean Up [ DONE ]

Discovering ip protocol version [ DONE ]

[email protected]'s password:

Setting up ssh keys

[root@nova ~]# ifconfig | head -3

eth0: flags=4163 mtu 1500

inet 192.168.6.164 netmask 255.255.255.0 broadcast 192.168.6.255

inet6 fe80::5054:ff:fef7:ded0 prefixlen 64 scopeid 0x20

 

[root@openstack ~]# vim /etc/httpd/conf.d/15-horizon_vhost.conf

WSGIApplicationGroup %{GLOBAL}

WSGIScriptAlias /dashboard "/usr/share/openstack-dashboard/openstack_dashboard/wsgi/django.wsgi"

[root@openstack ~]# apachectl graceful

[root@openstack ~]# ls

anaconda-ks.cfg ifcfg-eth0 rh6.img

answer.ini keystonerc_admin RPM-GPG-KEY-CentOS-7

[root@openstack ~]# cat keystonerc_admin

unset OS_SERVICE_TOKEN

export OS_USERNAME=admin

export OS_PASSWORD=2250e0cbc9b34b31

export OS_AUTH_URL=http://192.168.6.126:5000/v2.0

export PS1='[\u@\h \W(keystone_admin)]\$ '

 

export OS_TENANT_NAME=admin

export OS_REGION_NAME=RegionOne

修改admin的登录密码

 

 

 

 

 

 

[root@openstack ~]# vim keystonerc_admin

unset OS_SERVICE_TOKEN

export OS_USERNAME=admin

export OS_PASSWORD=redhat

export OS_AUTH_URL=http://192.168.6.126:5000/v2.0

export PS1='[\u@\h \W(keystone_admin)]\$ '

 

export OS_TENANT_NAME=admin

export OS_REGION_NAME=RegionOne

 

 

 

 

 

 

 

 

 

 

云主机热迁移

[root@openstack ~]# virsh list

Id 名称 状态

----------------------------------------------------

2 instance-00000015 running

3 instance-0000001b running

 

[root@openstack ~]#

[root@nova ~]# virsh list

Id 名称 状态

----------------------------------------------------

 

[root@nova ~]#

在编辑云主机中选择云主机热迁移

 

 

 

 

 

 

 

 

 

 

[root@nova ~]# virsh list

Id 名称 状态

----------------------------------------------------

1 instance-0000001b running

 

[root@openstack ~]# virsh list

Id 名称 状态

----------------------------------------------------

2 instance-00000015 running

 

 

 

 

 

 

 

 

此时的主机已经由openstack变成了nova,完成了热迁移

排错：

[root@openstack ~]# grep -Pv "^(#|$)"  /etc/nova/nova.conf  | grep openstack
vncserver_proxyclient_address=openstack
[root@openstack system]# cd /usr/lib/systemd/system

[root@openstack system]# systemctl restart openstack-nova-console