OpenVz Server Setup

Stage 1 :  Server Setup
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1 . Add the openVZ repository to  yum.
   

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 a. cd /etc/yum.repos.d
     b. http://download.openvz.org/openvz.repo
     c. rpm --import  http://download.openvz.org/RPM-GPG-Key-OpenVZ

2. Search  Available kernels
    a.

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yum  search vzkernel

3 Install  kernel 
    a.

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yum  install  vzkernel 

         * it will  install  necessary packages for openvz virtualization inludes  vzctl ,vzquota etc
         * 

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rmp -qa | grep  vzk*

    ---> verification command

4.Configure boot loader
     a . /etc/grub.conf
     b . edit   title  of   vzkernel  as OpenvZ   ( Just for  clarity  )

5. Set Kernel  parameters and disable  SElinux
   
       a.

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vi  /etc/sysctl.conf

  and  set below parameter 
       

             

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net.ipv4.ip_forward = 1
              net.ipv6.conf.default.forwarding = 1
              net.ipv6.conf.all.forwarding = 1
              net.ipv4.conf.default.proxy_arp = 0

             

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# Enables source route verification
               net.ipv4.conf.all.rp_filter = 1
               # Enables the magic-sysrq key
                kernel.sysrq = 1
               # We do not want all our interfaces to send redirects
                 net.ipv4.conf.default.send_redirects = 1
                 net.ipv4.conf.all.send_redirects = 0

   
           b.

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vi  /etc/sysconfig/selinux 

  and set 

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SELINUX=disabled

6. Now rebooting to  OpenVz kernel
7.Check whether  Eth0 detected or not  ,if no refer below link  for  fix .
   
    http://in.myloth.com/forum/index.php?topic=17.0

8. Start OpenVz
     

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/sbin/service vz start

Stage 2 : Templates
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1. Download OS templates to  /vz/template/cache/
     Check http://wiki.openvz.org/Download/template/precreated

Stage 3 :  Setup VMs
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 1. Create virtual  machines   ( CID --> Container ID )
         

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vzctl create  CID  --ostemplate   template  --config-basic     
          vzctl set  CID  --onboot yes --save

  ---> To  start Vms on boot
 2. Configure VM
        a. add ip
           

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 vzctl set  CID --ipadd ip --save

         b. No of sockets
             

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 vzctl set CID  --numothersock  150 --save

         c. Set name server for  N/w access
               

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vzctl set CID  --nameserver  IP --save

  ( our case  192.168.1.1 )
         d. Start  VM
               

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vzctl start  CID