KVM部署

43234

一、需求
公司近一段DELL T460机器回来，虚拟12台来跑hadoop集群测试的，虚拟化用的KVM技术，这当中第一次使用，在部署安装过程，入了不少坑。故把整个过程写下来。
二、部署步聚
1、所需要软件

1 2 3 4 5 6 7 8 9 10 11 12 13 14

[iyunv@KVM qemu]# rpm -qa | grep -E 'qemu|libvirt|virt' virt-what-1.11-1.2.el6.x86_64 libgovirt-0.3.2-1.el6_7.2.x86_64 libvirt-0.10.2-54.el6_7.6.x86_64 virt-viewer-2.0-7.el6.x86_64 libvirt-python-0.10.2-54.el6_7.6.x86_64 qemu-kvm-0.12.1.2-2.479.el6_7.4.x86_64 virt-manager-0.9.0-29.el6_7.1.x86_64 virt-top-1.0.4-3.15.el6.x86_64 python-virtinst-0.600.0-29.el6.noarch gpxe-roms-qemu-0.9.7-6.14.el6.noarch qemu-kvm-tools-0.12.1.2-2.479.el6_7.4.x86_64 libvirt-client-0.10.2-54.el6_7.6.x86_64 qemu-img-0.12.1.2-2.479.el6_7.4.x86_64

在KVM环境上，以上rpm包都是必需的。
2、安装图形化其他组件

1 2 3 4 5 6

#yum groupinstall "Desktop" "Desktop Platform" "Desktop Platform Development" "Fonts" "General Purpose Desktop" "Graphical Administration Tools" "Grahics Creation Tools" "Input Methods" "X Window System" "Chinese Support[zh]" "Internet Browser" #  yum install libvirt-client #   yum install gpxe-roms-qemu -y #   yum install libvirt-python python-virtinst qemu-kvm

3、安装VNC

1 2	#yum install -y tigervnc #yum install -y tigervnc-server

在这里注意了，安装tigervnc，那么用到pc连接过去时，自然也需要要安装tigervnc电脑版
配置文件

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

[iyunv@KVM ~]# cat /etc/sysconfig/vncservers # The VNCSERVERS variable is a list of display:user pairs. # # Uncomment the lines below to start a VNC server on display :2 # as my 'myusername' (adjust this to your own).  You will also # need to set a VNC password; run 'man vncpasswd' to see how # to do that.   # # DO NOT RUN THIS SERVICE if your local area network is # untrusted!  For a secure way of using VNC, see this URL: # https://access.redhat.com/knowledge/solutions/7027 # Use "-nolisten tcp" to prevent X connections to your VNC server via TCP. # Use "-localhost" to prevent remote VNC clients connecting except when # doing so through a secure tunnel.  See the "-via" option in the # `man vncviewer' manual page. # VNCSERVERS="2:myusername" # VNCSERVERARGS[2]="-geometry 800x600 -nolisten tcp -localhost" VNCSERVERS="1:root" VNCSERVERARGS[1]="-geometry 800x600 -depth 32"

4、创建磁盘

1	qemu-img create -f qcow2 -o size=200G,preallocation="metadata" /data1/hadoop/images/kvmhadoop222.qcow2

5、使用virt-install创建虚拟机并安装GuestOS

1	virt-install --virt-type kvm --name kvmhadoop222 --ram 16384 --cdrom=/root/CentOS-6.7-x86_64-LiveDVD.iso --disk path=/data1/hadoop/hadoop2/kvmhadoop202.qcow2  --graphics vnc,listen=0.0.0.0 ,port=5903--noautoconsole --os-type=linux --os-variant=rhel6  --network bridge=br0,model=virtio

6、用vnc连接

7、接下来就是安装操作系统了（省略）

8、虚拟机列表

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

[iyunv@KVM ~]# virsh list Id    Name                           State ---------------------------------------------------- 19    kvmhadoop223                   running 21    kvmhadoop228                   running 22    kvmhadoop229                   running 23    kvmhadoop230                   running 24    kvmhadoop231                   running 25    kvmhadoop232                   running 30    kvmhadoop221                   running 31    kvmhadoop222                   running 36    kvmhadoop233                   running 37    kvmhadoop234                   running 38    kvmhadoop235                   running 39    kvmhadoop236                   running 40    kvmhadoop224                   running

9、修改端口号，到配置文件

1 2 3 4 5

[iyunv@KVM qemu]# pwd /etc/libvirt/qemu [iyunv@KVM qemu]# ls kvmhadoop202.xml.bak  kvmhadoop222.xml      kvmhadoop223.xml  kvmhadoop228.xml  kvmhadoop230.xml  kvmhadoop232.xml  kvmhadoop234.xml  kvmhadoop236.xml kvmhadoop221.xml      kvmhadoop222.xml.bak  kvmhadoop224.xml  kvmhadoop229.xml  kvmhadoop231.xml  kvmhadoop233.xml  kvmhadoop235.xml  networks

10、修改端口，记得从XML配置文件定义一个domian，相当于注册一个domain但是不启动。

1	#virsh define /etc/libvirt/qemu/kvmhadoop222.xml

11、然后就是启动了