Difference between revisions of "Installing openVZ on Cent OS"

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<yambe:breadcrumb>OpenvZ</yambe:breadcrumb>
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Virtualization tools]] > [[OpenvZ]] > [[Installing openVZ on Cent OS]]
=Installing openVZ on CentOS=


Installation steps have been learned from http://wiki.openvz.org/Quick_installation
Installation steps have been learned from http://wiki.openvz.org/Quick_installation
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#Download openvz.repo file from http://download.openvz.org/openvz.repo
#Download openvz.repo file from http://download.openvz.org/openvz.repo
#<tt>mv openvz.repo /etc/yum.repos.d</tt>
#<tt>mv openvz.repo /etc/yum.repos.d</tt>
#<tt>yum install [o]vzkernel.x86_64 vzctl.x86_64 vzquota.x86_64</tt>
#<tt>yum install vzkernel.x86_64 ovzkernel.x86_64 vzctl.x86_64 vzquota.x86_64 ploop</tt>
#Edit file '<tt>/etc/sysctl.conf</tt>' so that it has
#:<pre>
#::net.ipv4.ip_forward = 1
#::net.ipv6.conf.default.forwarding = 1
#::net.ipv6.conf.all.forwarding = 1
#::net.ipv4.conf.default.proxy_arp = 0
#::
#::net.ipv4.conf.all.rp_filter = 1
#::
#::kernel.sysrq = 1
#::
#::net.ipv4.conf.default.send_redirects = 1
#::net.ipv4.conf.all.send_redirects = 0
#::
#:</pre>
#Disable SELinux
#Disable SELinux
#Enable forwarding of packets in iptables firewall
#Enable forwarding of packets in iptables firewall  
#Enable packet forwardng in /etc/sysctl.conf  (net.ipv4.ip_forward=1)
#Create a folder where you want to store openVZ related stuff. Create symbolic link of choosen folder as /vz.
#Create a folder where you want to store openVZ related stuff. Create symbolic link of choosen folder as /vz.
#Download templates from http://download.openvz.org/template/precreated/ to '<tt>/vz/template/cache</tt>. #:For centos template we need to rename it to -default template using '<tt>mv centos-5-x86_64.tar.gz centos-5-x86-64-default.tar.gz</tt>' as for some reason vzctl tries to append `-default' when we create containers using centos template.
#Download templates from http://download.openvz.org/template/precreated/ to '<tt>/vz/template/cache</tt>.  
#'''Optionally''' Edit file '<tt>/etc/grub.conf</tt>' and change title of kernel with word stab in it to openVZ. Remove all parameters passed to this kernel except "ro root=...". The setup works better without doing this as it does not leads to printing of too many messages during boot.
#'''Optionally''' Edit file '<tt>/etc/grub.conf</tt>' and change title of kernel with word stab in it to openVZ. Remove all parameters passed to this kernel except "ro root=...". The setup works better without doing this as it does not leads to printing of too many messages during boot.
#Edit or create '<tt>/etc/vz/vznet.conf</tt>' and write following line in it:
#:<pre>
#::EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
#:</pre>
#Edit '<tt>/etc/vz/vz.conf</tt>' and set '<tt>VE_LAYOUT=simfs</tt>'
#Edit '<tt>/etc/modprobe.d/openvz.conf</tt>' so that it has
#:<pre>
#::options nf_conntrack ip_conntrack_disable_ve0=0
#:</pre>
#Edit '<tt>/etc/vz/conf/ve-vswap-256m.conf-sample</tt>' to change value of NETFILER to
#:<pre>
#::NETFILTER="full"
#:</pre>
#Reboot into openVZ kernel
#Reboot into openVZ kernel


Note that container filesystems get stored in /vz/private/&lt;container_id&gt;
Note that container filesystems get stored in /vz/private/&lt;container_id&gt;
[[Main Page|Home]] > [[CentOS]] > [[CentOS 6.x]] > [[Virtualization tools]] > [[OpenvZ]] > [[Installing openVZ on Cent OS]]

Latest revision as of 13:14, 24 August 2022

Home > CentOS > CentOS 6.x > Virtualization tools > OpenvZ > Installing openVZ on Cent OS

Installation steps have been learned from http://wiki.openvz.org/Quick_installation

Following steps can be used to install openVZ on CentOS machine:

  1. Download openvz.repo file from http://download.openvz.org/openvz.repo
  2. mv openvz.repo /etc/yum.repos.d
  3. yum install vzkernel.x86_64 ovzkernel.x86_64 vzctl.x86_64 vzquota.x86_64 ploop
  4. Disable SELinux
  5. Enable forwarding of packets in iptables firewall
  6. Enable packet forwardng in /etc/sysctl.conf (net.ipv4.ip_forward=1)
  7. Create a folder where you want to store openVZ related stuff. Create symbolic link of choosen folder as /vz.
  8. Download templates from http://download.openvz.org/template/precreated/ to '/vz/template/cache.
  9. Optionally Edit file '/etc/grub.conf' and change title of kernel with word stab in it to openVZ. Remove all parameters passed to this kernel except "ro root=...". The setup works better without doing this as it does not leads to printing of too many messages during boot.
  10. Edit or create '/etc/vz/vznet.conf' and write following line in it: 
    EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
  11. Edit '/etc/vz/vz.conf' and set 'VE_LAYOUT=simfs'
  12. Edit '/etc/modprobe.d/openvz.conf' so that it has 
    options nf_conntrack ip_conntrack_disable_ve0=0
  13. Edit '/etc/vz/conf/ve-vswap-256m.conf-sample' to change value of NETFILER to 
    NETFILTER="full"
  14. Reboot into openVZ kernel

Note that container filesystems get stored in /vz/private/<container_id>


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