openstack 入门 【准备篇】一：整体介绍【centos】 M版本
本次搭建才用双节点由于本人是大三学生电脑配置不够所以就才用双节点我把网络节点部署在controller上本次测试环境在vm下测试的 首先需要开启虚拟化
本次环境是centos7
内部网络controller：192.168.100.10 eth0
compute1：192.168.200.10 eth1
外部网络 controller：192.168.100.20 eth0
compute1：192.168.200.10 eth1
管理网络(内部网络)，用于OpenStack组件以及MySQL DB Server, RabbitMQ
messaging server之间的通信
外部网络：用于本机和实例通信
硬件基本配置：
控制节点: 1 processor, 2 GB memory, and 5 GB storage
计算节点: 1 processor, 2 GB memory, and 10 GB storage
hosts配置：
#控制节点：
192.168.100.10 controller
# 计算节点
192.168.100.20 compute1
网络节点
外网网卡配置：
编辑/etc/sysconfig/network-scripts/ifcfg-INTERFACE_NAME文件，完成下面内容
不要改变HWADDR 和 UUID keys.
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# cat /etc/sysconfig/network-scripts/ifcfg-eno16777736
TYPE=Ethernet
BOOTPROTO=static
IPADDR=192.168.100.10
NETMASK=255.255.255.0
GATEWAY=192.168.100.2
NAME=eno16777736
DEVICE=eno16777736
ONBOOT=yes
# cat /etc/sysconfig/network-scripts/ifcfg-eno16777736
TYPE=Ethernet
BOOTPROTO=static
IPADDR=192.168.100.20
NETMASK=255.255.255.0
GATEWAY=192.168.100.2
NAME=eno16777736
DEVICE=eno16777736
ONBOOT=yes
检测网络互通性
1.从控制节点 ping外网
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ping -c compute
PING openstack.org (192.168.100.20) 56(84) bytes of data.
64 bytes from 192.168.100.20: icmp_seq=1 ttl=54 time=18.3 ms
64 bytes from 192.168.100.20: icmp_seq=2 ttl=54 time=17.5 ms
64 bytes from 192.168.100.20: icmp_seq=3 ttl=54 time=17.5 ms
64 bytes from 192.168.100.20: icmp_seq=4 ttl=54 time=17.4 ms
--- openstack.org ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3022ms
rtt min/avg/max/mdev = 17.489/17.715/18.346/0.364 ms
2.从控制节点，ping计算节点管理网络
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ping -c 4 compute1
PING compute1 (192.168.100.10) 56(84) bytes of data.
64 bytes from compute1 (192.168.100.10): icmp_seq=1 ttl=64 time=0.263 ms
64 bytes from compute1 (192.168.100.10): icmp_seq=2 ttl=64 time=0.202 ms
64 bytes from compute1 (192.168.100.10): icmp_seq=3 ttl=64 time=0.203 ms
64 bytes from compute1 (192.168.100.10): icmp_seq=4 ttl=64 time=0.202 ms
--- compute1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms
3.从计算节点，ping外网
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ping -c 4 compute1
PING openstack.org (192.168.100.20) 56(84) bytes of data.
64 bytes from 192.168.100.20: icmp_seq=1 ttl=54 time=18.3 ms
64 bytes from 192.168.100.20: icmp_seq=2 ttl=54 time=17.5 ms
64 bytes from 192.168.100.20: icmp_seq=3 ttl=54 time=17.5 ms
64 bytes from 192.168.100.20: icmp_seq=4 ttl=54 time=17.4 ms
--- openstack.org ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3022ms
rtt min/avg/max/mdev = 17.489/17.715/18.346/0.364 ms
4.从计算节点，ping控制节点管理网络
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ping -c 4 controller
PING controller (192.168.100.10) 56(84) bytes of data.
64 bytes from controller (192.168.100.10): icmp_seq=1 ttl=64 time=0.263 ms
64 bytes from controller (192.168.100.10): icmp_seq=2 ttl=64 time=0.202 ms
64 bytes from controller (192.168.100.10): icmp_seq=3 ttl=64 time=0.203 ms
64 bytes from controller (192.168.100.10): icmp_seq=4 ttl=64 time=0.202 ms
--- controller ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms
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