Openstack
Posted 腐种发芽
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Openstack
一、准备环境
1、配置两台虚拟机
vh01.tedu.cn 192.168.4.1/24 DNS服务器 NTP服务器
vh02.tedu.cn 192.168.4.2/24 192.168.2.2/24 OPENSTACK服务器
DNS指向192.168.4.1 内存4G以上，加一块20G的额外硬盘
2、初始化虚拟机
关闭防火墙/selinux
3、配置yum仓库
需要RHEL7安装光盘仓库，还需要osp光盘。osp光盘中的每一个目录都是一个仓库
二、DNS服务器
1、安装
[[email protected] ~]# yum install -y bind
2、主配置文件
[[email protected] ~]# vim /etc/named.conf
listen-on port 53 { any; };
allow-query { any; };
[[email protected] ~]# vim /etc/named.rfc1912.zones
zone "tedu.cn" IN {
type master;
file "tedu.cn.zone";
allow-update { none; };
};
3、区配置文件
[[email protected]vh01 ~]# vim /var/named/tedu.cn.zone
$TTL 86400
@ IN SOA vh01.tedu.cn. root.tedu.cn. (
20171101
3H
15M
1W
1D )
IN NS vh01.tedu.cn.
$generate 1-9 vh0$ IN A 192.168.4.$
$generate 10-254 vh$ IN A 192.168.4.$
4、检查语法
[[email protected] ~]# named-checkconf /etc/named.conf
[[email protected] ~]# named-checkconf /etc/named.rfc1912.zones
[[email protected] ~]# named-checkzone tedu.cn /var/named/tedu.cn.zone
5、验证
[[email protected] ~]# systemctl start named
[[email protected] ~]# systemctl enable named
[[email protected] ~]# nslookup vh01.tedu.cn
NTP配置
1、网络时间协议 UDP123
[[email protected] ~]# yum install -y ntp
[[email protected] ~]# vim /etc/ntp.conf
restrict 192.168.4.0 mask 255.255.255.0 nomodify
#server 0.rhel.pool.ntp.org iburst
#server 1.rhel.pool.ntp.org iburst
#server 2.rhel.pool.ntp.org iburst
#server 3.rhel.pool.ntp.org iburst
server 127.127.1.0 iburst
fudge 127.127.1.0 stratum 3 #第三层NTP服务器
2、测试
[[email protected] ~]# systemctl start ntpd
[[email protected] ~]# systemctl enable ntpd
[[email protected] ~]# netstat -ulnp | grep :123
[[email protected] ~]# date
[[email protected] ~]# date -s "2017-11-28 15:34:00"
[[email protected] ~]# ntpdate 192.168.4.1
[[email protected] ~]# date
配置OPENSTACK
1、关闭NetworkManager
[[email protected] ~]# systemctl stop NetworkManager
[[email protected] ~]# systemctl disable NetworkManager
2、创建名为cinder-volumes的卷组，用于为云主机提供云硬盘
[[email protected] ~]# pvcreate /dev/vdb
[[email protected] ~]# vgcreate cinder-volumes /dev/vdb
3、导公钥、安装rpm包
[[email protected] ~]# cd openstack/
[[email protected] openstack]# rpm --import rabbitmq-signing-key-public.asc
[[email protected] openstack]# yum install -y rpms/*rpm
4、安装openstack部署工具packstack
[[email protected] openstack]# yum install -y openstack-packstack
5、生成应答文件
[[email protected] openstack]# packstack --gen-answer-file answer.txt
[[email protected] openstack]# vim answer.txt
CONFIG_DEFAULT_PASSWORD=redhat
CONFIG_SWIFT_INSTALL=n
CONFIG_NTP_SERVERS=192.168.4.1
ONFIG_KEYSTONE_ADMIN_PW=redhat
CONFIG_CINDER_VOLUMES_CREATE=n
CONFIG_NEUTRON_ML2_VXLAN_GROUP=239.1.1.2
CONFIG_NEUTRON_ML2_VNI_RANGES=1001:2000
CONFIG_NEUTRON_OVS_BRIDGE_MAPPINGS=physnet1:br-ex
CONFIG_NEUTRON_OVS_TUNNEL_IF=eth1
CONFIG_PROVISION_DEMO=n
6、安装openstack
[[email protected] openstack]# packstack --answer-file answer.txt
网络配置
[[email protected] openstack]# cd /etc/sysconfig/network-scripts/
[[email protected] network-scripts]# cp ifcfg-eth0 ifcfg-br-ex
[[email protected] network-scripts]# vim ifcfg-br-ex
TYPE=OVSBridge
DEVICETYPE=ovs
BOOTPROTO=none
NAME=br-ex
DEVICE=br-ex
ONBOOT=yes
IPADDR=192.168.4.2
PREFIX=24
DNS1=192.168.4.1
[[email protected] network-scripts]# vim ifcfg-eth0
TYPE=OVSPort
OVS_BRIDGE=br-ex
DEVICE=eth0
ONBOOT=yes
DEVICETYPE=ovs
[[email protected] network-scripts]# systemctl restart network
[[email protected] cloud]# firefox http://192.168.4.2 &
http://mirrors.163.com/
http://mirrors.aliyun.com/
IaaS：云主机
PaaS：组件、中间件
SaaS：软件
Horizon：Web管理门户
Keystone：认证管理
Cinder：云硬盘
Glance：镜像管理
Neutron：网络管理
Nova：云主机管理
手工引导
1、重起系统后，在第一个菜单上按c
2、设置根分区
grub> set root=(hd0,msdos1) 相当于是vda1
3、指定内核
grub> linux16 /vmlinuz-3.10<tab> root=/dev/rhel/root
4、指定初始化内存盘的位置
grub> initrd16 /initamfs-3.10<tab>.img
5、起动
grub> boot
查看状态，active和inactive都是正常的，failed是有问题的
[[email protected] ~(keystone_admin)]# openstack-status
重启openstack
[[email protected] ~(keystone_admin)]# openstack-service restart
安装额外计算节点
1、vh03.tedu.cn
192.168.4.3/24 192.168.2.3/24 dns: 192.168.4.1
防火墙/selinux
[[email protected] ~]# scp /etc/yum.repos.d/rhel7.repo 192.168.4.3:/etc/yum.repos.d/
[[email protected] ~]# scp /etc/yum.repos.d/osp8.repo 192.168.4.3:/etc/yum.repos.d/
[[email protected] ~]# scp -r openstack/ 192.168.4.3:/root
[[email protected] ~]# cd openstack/
[[email protected] openstack]# rpm --import rabbitmq-signing-key-public.asc
[[email protected] openstack]# yum install -y rpms/*rpm
[[email protected] openstack(keystone_admin)]# vim answer.txt
CONFIG_COMPUTE_HOSTS=192.168.4.2,192.168.4.3
[[email protected] openstack(keystone_admin)]# packstack --answer-file answer.txt
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