packstack + vxlan 利用vbox虚拟机搭建1控制节点+2计算节点openstack
1.实验环境先参照笔者另一篇博文http://blog.iyunv.com/u010366748/article/details/45366045（packstack allinone + vxlan 用vbox的虚拟机搭建openstack(单节点双网卡) ）的第一步配置好实验环境（3台机器都要配置好）
2.搭建openstack
（1）.启动虚拟机（当物理机用）后，为其配置网卡
节点eth0（management network ）eth1（public/external network ）eth2（private network）eth3
controller110.20.0.201172.16.0.201192.168.4.201nat
compute110.20.0.202172.16.0.201192.168.4.201nat
compute210.20.0.203172.16.0.201192.168.4.201nat 下面给出compute1的网卡配置为例，另外的controller1和compute2可参考此配置
# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.20.0.202
NETMASK=255.255.255.0
# vi /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=172.16.0.202
NETMASK=255.255.255.0
# vi /etc/sysconfig/network-scripts/ifcfg-eth2
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=192.168.4.202
NETMASK=255.255.255.0
# vi /etc/sysconfig/network-scripts/ifcfg-eth3
DEVICE=eth3
TYPE=Ethernet
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=dhcp
（2）.其他公共配置(all nodes)
修改hosts文件
vi /etc/hosts
127.0.0.1 localhost
::1 localhost
10.20.0.201 controller1
10.20.0.202 compute1
10.20.0.203 compute2
安装NTP 服务
yum install ntp -y
service ntpd start
chkconfig ntpd on
修改NTP配置文件，配置从controller0时间同步。(除了controller0以外)
vi /etc/ntp.conf
server 10.20.0.201
fudge10.20.0.201stratum 10# LCL is unsynchronized
立即同步并检查时间同步配置是否正确。(除了controller0以外)
ntpdate -u 10.20.0.201
service ntpd restart
ntpq -p
清空防火墙规则
vi /etc/sysconfig/iptables
*filter
:INPUT ACCEPT
:FORWARD ACCEPT
:OUTPUT ACCEPT
COMMIT
重启防火墙，查看是否生效
service iptables restart
iptables -L
禁用 selinux
vi /etc/selinux/config
SELINUX=disabled
reboot -h 0
（3）.安装
yum install -y https://repos.fedorapeople.org/repos/openstack/openstack-icehouse/rdo-release-icehouse-4.noarch.rpm
yetall openstack-packstack
产生应答文件：
packstack –gen-answer-file=myanswer.txt
vi myanswer.txt
CONFIG_CONTROLLER_HOST=10.20.0.201
CONFIG_COMPUTE_HOSTS=10.20.0.202,10.20.0.203
CONFIG_NETWORK_HOSTS=10.20.0.201
CONFIG_VCENTER_HOST=10.20.0.201
CONFIG_STORAGE_HOST=10.20.0.201
CONFIG_AMQP_HOST=10.20.0.201
CONFIG_MARIADB_HOST=10.20.0.201
CONFIG_KEYSTONE_ADMIN_PW=admin
CONFIG_KEYSTONE_DEMO_PW=demo
CONFIG_NOVA_COMPUTE_PRIVIF=eth2
CONFIG_NOVA_NETWORK_PUBIF=eth1
CONFIG_NOVA_NETWORK_PRIVIF=eth2
CONFIG_NOVA_NETWORK_FIXEDRANGE=
CONFIG_NOVA_NETWORK_FLOATRANGE=
CONFIG_MONGODB_HOST=10.20.0.201
......
其他仍为默认项
packstack –answer-file=myanswer.txt
这一过程比较漫长
测试：
cat keystonerc_admin
vi /etc/nova/nova.conf
service openstack-nova-compute restart
service openstack-nova-scheduler restart
vi /etc/sysconfig/network-scripts/ifcfg-eth1
vi /etc/sysconfig/network-scripts/ifcfg-br-ex
vi /etc/neutron/plugin.ini
service network restart
service neutron-openvswitch-agent restart
service neutron-metadata-agent restart
service neutron-dhcp-agent restart
service neutron-l3-agent restart
ping 172.16.0.4
ssh 172.16.0.4 -l cirros
nova-manage vm list
. keystonerc_admin
nova-manage service list
neutron agent-list
service openstack-nova-compute stop
nova-manage service list
neutron agent-list
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