OpenStack-Icehouse

1.系统网络规划:

节点

Eth0(外网)

Eth1(内网)

controller

192.77.108.243

10.0.0.243

compute1

192.77.108.244

10.0.0.244

compute2

192.77.108.242

10.0.0.242

结构图:

 

2.安装

2.1安装操作系统

三个节点采用CentOS6.5,安装都采用Minimal Desktop方式,其中:

控制节点安装使用手动分区,主要是分出一个LVM分区,方法如下:

     (创建一个物理卷即可,不用创建物理卷组)

计算节点的安装采用手动分区。

     (如果有多块硬盘,建议先把一块硬盘分成两部分,一个500M,为主分区,挂载/boot,ext4;另一部分做成LVM。其他硬盘也都做成LVM,将所有LVM做成一个卷组,给系统使,系统挂载系统分区、/home,交换分区。)

        系统分区--/---磁盘空间一定要大,决定虚拟机存储空间;

            /home  ;     交换分区;        /boot  主要要为主要分区


2.2设置LVM

(只在controller节点,如果没有进行手动分区的话,这步可忽略)(这个主要是提高虚拟机性能)

# pvcreate /dev/sda5

# vgcreate cinder-volumes /dev/sda5

#sed -i ‘/cinder-volume/s/^/#/’ /etc/fstab #去掉开机挂载


3.操作系统配置

(1) /etc/hosts:保证所有结点互相能pinghostname

(2) /etc/resolv.conf:保证DNS服务器正常

(3) /etc/selinux/config

        中设置 SELinux: disabled

(4) sshd config: /etc/ssh/sshd_config: ListenAddress 0.0.0.0

(5) EPEL Repo:

# rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

# rpm -Uvh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm

# rpm -Uvh http://mirrors.hustunique.com/epel/6/x86_64/epel-release-6-8.noarch.rpm

(6)

rpm -Uvh http://rdo.fedorapeople.org/openstack-icehouse/rdo-release-icehouse.rpm

(7) 更新操作系统到最新版本

# yum -y update

# reboot


4.RDO安装(在控制结点上操作)

(1) yum install -y openstack-packstack

生成RDO配置文件

(2) packstack --gen-answer-file my_answers.txt

修改好配置文件之后

packstack --answer-file my_answers.txt

 


5.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_NOVA_COMPUTE_HOSTS=192.77.108.243,192.77.108.242,192.77.108.244

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=1.cn.pool.ntp.org
CONFIG_PROVISION_DEMO=n
CONFIG_CINDER_VOLUMES_CREATE=n
 
                   

6.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 在网络节点上

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,注意:一定要加上eth0 的mac地址,不然会出错。

# 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"

比较这几个,应该可以看到变化.

 

 

参考文档

http://blog.csdn.net/cloudtech/article/details/19936249
http://www.chenshake.com/centos-install-6-5-rdo-openstack-icehouse-ml2gre/

http://www.chenshake.com/how-node-installation-centos-6-4-openstack-havana-ovsgre/
https://bugzilla.redhat.com/show_bug.cgi?id=1068962

https://bugzilla.redhat.com/show_bug.cgi?id=1066519


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