利用Packstack自动化部署Openstack
事前准备：
①手动部署openstack确实是个麻烦事，packstack可以利用编好的脚本迅速部署可靠的openstack环境，感觉比devstack更简单
②资料参考https://www.rdoproject.org/Quickstart，安装完成后网络还需修改才可使用
③环境：（一台虚拟机（或实体机），40G硬盘以上硬盘，10G以上内存，两块网卡） 注：搭建环境为allinone，所有组件在一台机器上，方便测试
④系统：（系统：RHEL7，Openstack：Kilo，Packstack：2015.1.dev1537.gba5183c）
⑤网络：
ens3: flags=4163 mtu 1500
inet 192.168.102.80 netmask 255.255.255.0 broadcast 192.168.102.255
inet6 fe80::5054:ff:fe36:d440 prefixlen 64 scopeid 0x20
ether 52:54:00:36:d4:40 txqueuelen 1000 (Ethernet)
RX packets 740715 bytes 35417699 (33.7 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 34979 bytes 3396552 (3.2 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens7: flags=4163 mtu 1500
inet 193.168.140.235 netmask 255.255.0.0 broadcast 193.168.255.255
inet6 fe80::5054:ff:fe66:b131 prefixlen 64 scopeid 0x20
ether 52:54:00:66:b1:31 txqueuelen 1000 (Ethernet)
RX packets 28080082 bytes 1965879786 (1.8 GiB)
RX errors 0 dropped 286 overruns 0 frame 0
TX packets 7335 bytes 540350 (527.6 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
⑥添加源：最好是搭建本地源，这样可以是整个部署流程更快，如果没有，添加rdo源
# yum install http://dl.fedoraproject.org/pub/epel/7/x86_64/e/epelrelease-7-5.noarch.rpm# yum install http://rdo.fedorapeople.org/openstack-kilo/rdo-release-kilo.rpm就绪，开始！
一、关闭NetworkManager
# systemctl stop NetworkManager
# systemctl disable NetworkManager二、安装packstack，生成应答文件
# yum install openstack-packstack# packstack --gen-answer-file=answer.conf
Packstack changed given value to required value /root/.ssh/id_rsa.pub
三、根据需要修改应答文件
①选用组件（‘y’为安装，默认如下，可自行修改）
CONFIG_MARIADB_INSTALL=y
CONFIG_GLANCE_INSTALL=y
CONFIG_CINDER_INSTALL=y
CONFIG_MANILA_INSTALL=n
CONFIG_NOVA_INSTALL=y
CONFIG_NEUTRON_INSTALL=y
CONFIG_HORIZON_INSTALL=y
CONFIG_SWIFT_INSTALL=y
CONFIG_CEILOMETER_INSTALL=y
CONFIG_HEAT_INSTALL=n
CONFIG_SAHARA_INSTALL=n
CONFIG_TROVE_INSTALL=n
CONFIG_IRONIC_INSTALL=n
CONFIG_CLIENT_INSTALL=y②修改组件ip（全部改为对内通信的ip，此处为ens3）
CONFIG_CONTROLLER_HOST=192.168.102.80
CONFIG_COMPUTE_HOSTS=192.168.102.80
CONFIG_NETWORK_HOSTS=192.168.102.80
CONFIG_STORAGE_HOST=192.168.102.80
CONFIG_SAHARA_HOST=192.168.102.80
CONFIG_AMQP_HOST=192.168.102.80
CONFIG_MARIADB_HOST=192.168.102.80
CONFIG_KEYSTONE_LDAP_URL=ldap://192.168.102.80
CONFIG_MONGODB_HOST=192.168.102.80
CONFIG_REDIS_MASTER_HOST=192.168.102.80
③修改admin用户密码，取消demo用户安装（demo可在自动部署完成后自行创建）
CONFIG_DEFAULT_PASSWORD=shitou92
CONFIG_KEYSTONE_ADMIN_PW=shitou92
CONFIG_PROVISION_DEMO=n
④修改neutron网络配置（我习惯用gre）
CONFIG_NEUTRON_ML2_TYPE_DRIVERS=gre
CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES=gre
CONFIG_NEUTRON_ML2_TUNNEL_ID_RANGES=100:1000
CONFIG_NEUTRON_OVS_TUNNEL_IF=ens3四、开始安装
# packstack --answer-file=answer.conf五、修改网络配置文件
# cd /etc/sysconfig/network-scripts/
# vim ifcfg-br-ex
DEVICE=br-ex
ONBOOT=yes
BOOTPROTO=none
IPADDR=193.168.140.51
NETMASK=255.255.0.0
GATEWAY=193.168.1.1
# vim ifcfg-ens7
TYPE=Ethernet
BOOTPROTO=none
HWADDR=52:54:00:ca:ea:0e
DEVICE=ens7
ONBOOT=yes
# ovs-vsctl add-port br-ex ens7
# service network restart六、创建网络、创建instance
这些不用讲了吧，参考官网，环境大功告成！！！