Centos 6.5 搭建Openstack平台

<pre name="code" class="plain">设置源
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS6-Base-163.repo 
添加epel源
RDO需要使用epel源和RDO源，另外由于epel上的puppet版本太旧，所以需要增加puppet的源，Foreman的源，其实我们是用不上。

需要注意的一点就是，如果你是多节点的安装，那么你确保你的其他节点的epel源设置正确就可以，默认packstack不会设置其他节点的epel源。

我试验环境有内网的源，其实是不需要这个的。这个rpm包装完，你会发现 /etc/yum.repos.d/ 目录下多几个文件。

yum install -y http://rdo.fedorapeople.org/openstack-icehouse/rdo-release-icehouse.rpm 网卡配置
默认我使用eth0作为公网IP地址，虚拟机的floating IP，也是公网的IP地址，eth1,作为虚拟机通讯,需要设置一个私有的IP地址段就可以，这个IP地址段，和虚拟机获得的fix IP，没有任何联系。

cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
HWADDR=00:E0:81:D8:43:BE
TYPE=Ethernet
BOOTPROTO=none
IPADDR=172.28.1.133
NETMASK=255.255.0.0
DNS1=172.28.0.1
eth1,是一个虚拟机通讯的网络,所以你设置一个专用的私有IP地址段就可以,这个是GRE网络需要的

cat /etc/sysconfig/network-scripts/ifcfg-eth1
DEVICE=eth1
ONBOOT=yes
HWADDR=00:E0:81:D8:43:BF
TYPE=Ethernet
BOOTPROTO=none
IPADDR=10.1.1.133
NETMASK=255.255.255.0
DNS1=172.28.0.1

安装packstack
yum -y install openstack-packstack
packstack --gen-answer-file=node133.txt

修改应答文件
默认的应答文件有点变化，所以需要调整一下

CONFIG_HEAT_INSTALL=y
CONFIG_KEYSTONE_ADMIN_PW=admin
#CONFIG_NEUTRON_L2_PLUGIN=openvswitch
CONFIG_NEUTRON_L2_PLUGIN=ml2
CONFIG_NEUTRON_ML2_TYPE_DRIVERS=gre
CONFIG_NEUTRON_ML2_TENANT_NETWORK_TYPES=gre
CONFIG_NEUTRON_ML2_TUNNEL_ID_RANGES=100:1000
CONFIG_NEUTRON_OVS_TENANT_NETWORK_TYPE=gre
CONFIG_NEUTRON_OVS_TUNNEL_RANGES=100:1000
CONFIG_NEUTRON_OVS_TUNNEL_IF=eth1

#########
CONFIG_HEAT_CLOUDWATCH_INSTALL=y
CONFIG_HEAT_CFN_INSTALL=y

在我的实际的环境中,我还做下面的调整

CONFIG_SSH_KEY=/root/.ssh/authorized_keys
CONFIG_NTP_SERVERS=172.28.0.1
CONFIG_PROVISION_DEMO=n
CONFIG_CINDER_VOLUMES_CREATE=n

做这些调整的目的

使用密钥，可以免除输入密码，这样方便多节点部署
让所有的机器同步时间，避免不必要的麻烦
不创建demo用户，这样可以避免很多误解
用文件模拟cinder volume，性能很差，我的机器里已经有一个lvm 卷 cinder-volumes, 所以不需要文件模拟
运行packstack

这就是安装

packstack --answer-file=node133.txt
顺利装完后，你会看到

**** Installation completed successfully ******

Additional information:
* Time synchronization installation was skipped. Please note that unsynchronized time on server instances might be problem for some OpenStack components.
* File /root/keystonerc_admin has been created on OpenStack client host 172.28.1.133. To use the command line tools you need to source the file.
* To access the OpenStack Dashboard browse to http://172.28.1.133/dashboard .
Please, find your login credentials stored in the keystonerc_admin in your home directory.
* To use Nagios, browse to http://172.28.1.133/nagios username : nagiosadmin, password : nagiosadmin
* The installation log file is available at: /var/tmp/packstack/20140617-100211-nW1zwf/openstack-setup.log
* The generated manifests are available at: /var/tmp/packstack/20140617-100211-nW1zwf/manifests
调整网络
默认虚拟机是无法访问外网，所以我们需要设置一下。

查看当前网络情况

root@g133 ~]# ovs-vsctl show
d5211ea0-c973-4f41-a7f4-69dd0cf7238c
Bridge br-int
Port br-int
Interface br-int
type: internal
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port "gre-0a01010a"
Interface "gre-0a01010a"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.10"}
Port br-tun
Interface br-tun
type: internal
Port "gre-0a01010c"
Interface "gre-0a01010c"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.12"}
ovs_version: "1.11.0"
没有创建br-ex

我们需要创建 /etc/sysconfig/network-scripts/ifcfg-br-ex

# cat /etc/sysconfig/network-scripts/ifcfg-br-ex
DEVICE=br-ex
IPADDR=172.28.1.133
PREFIX=16
ONBOOT=yes
调整eth0

# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
HWADDR=00:E0:81:DE:23:65
创建bridge br-ex

ovs-vsctl add-br br-ex
这个时候查看网络

# ovs-vsctl show
3a0b7e02-78a1-475e-bc93-5b57a6749aa3
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port br-tun
Interface br-tun
type: internal
Port "gre-0a01010a"
Interface "gre-0a01010a"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.10"}
Port "gre-0a01010c"
Interface "gre-0a01010c"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.12"}
Bridge br-int
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port br-int
Interface br-int
type: internal
Bridge br-ex
Port br-ex
Interface br-ex
type: internal
ovs_version: "1.11.0"
把bridge和网卡绑定

ovs-vsctl add-port br-ex eth0; service network restart
这个时候,你再查看网络

# ovs-vsctl show
3a0b7e02-78a1-475e-bc93-5b57a6749aa3
Bridge br-tun
Port patch-int
Interface patch-int
type: patch
options: {peer=patch-tun}
Port br-tun
Interface br-tun
type: internal
Port "gre-0a01010a"
Interface "gre-0a01010a"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.10"}
Port "gre-0a01010c"
Interface "gre-0a01010c"
type: gre
options: {in_key=flow, local_ip="10.1.1.133", out_key=flow, remote_ip="10.1.1.12"}
Bridge br-int
Port patch-tun
Interface patch-tun
type: patch
options: {peer=patch-int}
Port br-int
Interface br-int
type: internal
Bridge br-ex
Port "eth0"
Interface "eth0"
Port br-ex
Interface br-ex
type: internal
ovs_version: "1.11.0"
转载至：http://www.chenshake.com/centos6-4-single-card-all-in-one-install-havana/