Centos7 单机单网卡安装 OpenStack

news2024/12/27 12:02:25

本文实际环境 vmware 虚拟机：

网络采用的桥接方式，和我的物理网络在一个网段

CPU开启虚拟化

虚拟机安装系统后，配置上静态IP，能连接外网就行了，最好是把内核升级到5.19以上

1、初始化准备

1）关闭防火墙

systemctl disable firewalld
systemctl stop firewalld
systemctl disable NetworkManager
systemctl stop NetworkManager

vim /etc/selinux/config

SELINUX=disabled

2）增加hosts源

vim /etc/hosts

192.168.20.205 master.openstack

3）配置国内源：我选择的是阿里源

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

yum clean all

yum makecache

yum update -y

4）yum install centos-release-openstack-queens.noarch -y

将源换成阿里源

baseurl=http://mirrors.aliyun.com/centos/7/cloud/x86_64/openstack-queens/

yum install -y openstack-packstack.noarch

2、提前准备过程中会出现的错误

1）降级 leatherman

# yum list installed | grep leatherma
leatherman.x86_64 1.10.0-1.el7 @epel

yum downgrade leatherman -y

2）应对 openstack-keystone 错误

yum -y install qpid-proton-c-0.22.0-1.el7.x86_64

3）应对错误： Error: Execution of ‘/usr/bin/yum -d 0 -e 0 -y install openstack-ceilometer-ipmi’

yum install applydeltarpm -y

yum -d 0 -e 0 -y install openstack-ceilometer-ipmi

3、开始 all-in-one 建议开始之前，做一份快照备用，因为不知道会遇到啥乱七八糟的问题

packstack --allinone --provision-demo=n --os-neutron-ovn-bridge-mappings=extnet:br-ex --os-neutron-ovn-bridge-interfaces=br-ex:eth0

4、安装完成后开始配置网桥

安装完成后的初始网卡，会多一个br-ex的网桥出来

# ip a
......
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 00:15:5d:5a:a6:59 brd ff:ff:ff:ff:ff:ff
inet 192.168.0.151/24 brd 192.168.0.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::215:5dff:fe5a:a659/64 scope link
valid_lft forever preferred_lft forever
3: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
link/ether 36:8c:b5:5a:43:a1 brd ff:ff:ff:ff:ff:ff
4: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
link/ether 82:c0:23:69:97:44 brd ff:ff:ff:ff:ff:ff
inet6 fe80::80c0:23ff:fe69:9744/64 scope link
valid_lft forever preferred_lft forever

根据文档Neutron with existing external network —RDO

配置 ifcfg-br-ex

[root@master network-scripts]# cat ifcfg-br-ex
DEVICE=br-ex
DEVICETYPE=ovs
TYPE=OVSBridge
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=br-ex
UUID=26863512-9ea5-470b-9fde-a3681ce4cc39
DEVICE=br-ex
ONBOOT=yes
IPADDR=192.168.20.205
NETMASK=255.255.255.0
GATEWAY=192.168.20.1
DNS1=202.103.24.68

配置ifcfg-eno16777736（根据自己的实际网卡）

[root@master network-scripts]# cat ifcfg-eno16777736
TYPE=OVSPort
DEVICETYPE=ovs
OVS_BRIDGE=br-ex
BOOTPROTO=static
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eno16777736
DEVICE=eno16777736
ONBOOT=yes

重启网卡服务：systemctl restart network

IP会桥接到br-ex上去

测试下，IP是不是通的，能不能连接外网和网关

5、页面网络配置

先登录页面地址：

http://192.168.20.205/dashboard/auth/login/?next=/dashboard/

初始账号密码在文件

6、创建外网和子网

source /root/keystonerc_admin

neutron net-create external_network --provider:network_type flat --provider:physical_network extnet --router:external

neutron subnet-create --name public_subnet --enable_dhcp=False --allocation-pool=start=192.168.20.100,end=192.168.20.250  --gateway=192.168.20.1 external_network 192.168.20.0/24

上面是用命令行创建，直接页面创建更加简洁

页面创建

创建内网和子网

创建路由----点击路由进去----添加接口

内外网关必须是UP的状态

确认 ping 路由

如果 ping 不通路由，就不要继续，先去解决网络配置或安全组设置

确认网络拓扑

确认一个没有被用过的浮动IP

下载并配置一份镜像

wget http://download.cirros-cloud.net/0.5.2/cirros-0.5.2-x86_64-disk.img

openstack image create "cirros_1" --file cirros-0.5.2-x86_64-disk.img --disk-format qcow2 --container-format bare --public