先电openstack平台搭建

openstack平台搭建流程

1. 准备好两台虚拟机配置如下

   	vm1	vm2
   网卡	ens33:192.168.200.10 ens37:192.168.100.10	ens33:192.168.200.20 ens37:192.168.100.20
   vcpu	2vcpu4核	2vcpu4核
   内存	8G	8G
   硬盘	100G	100G

   (注:ens33为外网网卡,ens37为内网网卡不需要配置网关和DNS)

2. 设置主机名,关闭防火墙,关闭selinux,重新连接使.

   1. 主机名配置

   hostname controller
   

   2. 关闭防火墙

   systemctl stop firewalld
   systemctl disable firewalld
   systemctl status firewalld
   

   3. 关闭selinux

   setenforce 0
   

   4. 断开重连CRT

3. 设置本地yum源

   1. 挂载镜像文件

   上传CentOS-7-x86_64-DVD-1804.iso 和 XianDian-IaaS-v2.2.iso 到/opt目录下
   mkdir /opt/centos
   mkdir /opt/iaas
   mount -o loop CentOS-7-x86_64-DVD-1804.iso /opt/centos/
   mount -o loop XianDian-IaaS-v2.2.iso /opt/iaas
   

   2. 在controller节点和compute节点分别新建一个目录将/etc/yum.repo.d中的文件备份

   mkdir /opt/repo
   mv /etc/yum.repo.d/*.* /opt/repo
   

   2. 编写controller节点的yum.repo文件

    vim /etc/yum.repos.d/local.repo 
   [centos]
   name=centos
   baseurl=file:///opt/centos
   gpgcheck=0
   enabled=1
   [iaas]
   name=iaas
   baseurl=file:///opt/iaas/iaas-repo
   gpgcheck=0
   enabled=1
   

   3. 安装vsftpd并编写配置文件

   yum install -y vsftpd
   
   vim /etc/vsftpd/vsftpd.conf
   ...
   anon_root=/opt
   

   4. 编写compute节点的额yum.repo文件

   vim /etc/yum.repo.d/ftp.repo
   [centos]
   name=centos
   baseurl=ftp://controller/centos
   gpgcheck=0
   enabled=1
   [iaas]
   name=iaas
   baseurl=ftp://controller/iaas/iaas-repo
   gpgcheck=0
   enabled=1
   

   5. 测试本地yum源是否可用

   yum clean all
   Loaded plugins: fastestmirror
   Cleaning repos: base centos extras iaas updates
   Cleaning up list of fastest mirrors
   yum makecache
   #不出现error即可
   

4. 配置环境变量

   1. 安装先电包

   yum install -y iaas-xiandian
   

   2. 编写变量文件openrc.sh

   sed -i 's/PASS=/PASS=000000/g' /etc/xiandian/openrc.sh
   sed -i 's/^#//g' /etc/xiandian/openrc.sh
   vim /etc/xiandian/openrc.sh
   #进一步编辑文件将剩下的11行内容补充上
   

   3. 将controller节点的openrc.sh文件同步到compute上

   scp /etc/xiandian/openrc.sh compute:/etc/xiandian/openrc.sh
   

   4. 分别检查两个节点的环境变量

5. 开始部署openstack各个组件

   controller节点	compute节点
   iaas-pre-host.sh	iaas-pre-host.sh
   iaas-install-mysql.sh	iaas-install-mysql.sh
   iaas-install-keystone.sh
   iaas-install-glance.sh
   iaas-install-nova-controller.sh	iaas-install-nova-compute.sh
   iaas-install-neutron-controller.sh	iaas-install-neutron-compute.sh
   iaas-install-neutron-controller-gre.sh	iaas-install-neutron-compute-gre.sh
   iaas-install-dashboard.sh

   (注:每次先执行controller节点,在执行compute节点)

6. 上传 CentOS_7.2_x86_64_XD.qcow2 镜像

openstack image create --file /opt/iaas/image/CentOS_7.2_x86_64_XD.qcow2 --disk-format qcow2 --container-format bare centos7

7. 创建外网,内网,子网,路由

...

8. 登录dashboard,创建云主机,并且为云主机绑定浮动IP

9. 创建网桥(在计算节点上操作)

   1. 查看网桥名称

   ip a
   9: br-ex: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
   

   2. 编辑ifcfg-ens37文件

   vi ifcfg-ens37
   DEVICE=ens37
   TYPE=Ethernet
   BOOTPROTO=none
   ONBOOT=yes
   TYPE=OVSPort
   OVS_BRIDGE=br-ex
   

   3. 在/etc/sysconfig/network-scripts目录下创建ifcfg-br-ex文件

   vi ifcfg-br-ex
   DEFROUTE=yes
   PEERDNS=yes
   PEERROUTES=yes
   ONBOOT=yes
   IPADDR=192.168.100.40
   GATEWAY=192.168.100.1
   NETMASK=255.255.255.0
   DEVICE=br-ex
   NAME=br-ex
   DEVICETYPE=ovs
   OVSBOOTPROTO=static
   TYPE=OVSBridge
   

   4. 连接测试

   #ping浮动IP的网关:
   [root@compute ~]# ping 192.168.100.1
   PING 192.168.100.1 (192.168.100.1) 56(84) bytes of data.
   64 bytes from 192.168.100.1: icmp_seq=1 ttl=128 time=1.07 ms
   64 bytes from 192.168.100.1: icmp_seq=2 ttl=128 time=0.939 ms
   ^C
   --- 192.168.100.1 ping statistics ---
   2 packets transmitted, 2 received, 0% packet loss, time 1002ms
   rtt min/avg/max/mdev = 0.939/1.006/1.074/0.074 ms
   #ping浮动ip地址
   [root@compute ~]# ping 192.168.100.4
   PING 192.168.100.4 (192.168.100.4) 56(84) bytes of data.
   64 bytes from 192.168.100.4: icmp_seq=1 ttl=63 time=1.60 ms
   64 bytes from 192.168.100.4: icmp_seq=2 ttl=63 time=2.16 ms
   64 bytes from 192.168.100.4: icmp_seq=3 ttl=63 time=2.11 ms
   ^C
   --- 192.168.100.4 ping statistics ---
   3 packets transmitted, 3 received, 0% packet loss, time 2003ms
   rtt min/avg/max/mdev = 1.606/1.961/2.164/0.251 ms
   #使用ssh连接
   [root@compute ~]# ssh 192.168.100.4
   root@192.168.100.4's password: 
   Last login: Sat Oct 17 13:23:09 2020 from 192.168.100.40
   
    #########################
    #  Welcome to XianDian  #
    #########################
   
   [root@ecs ~]#