Quick Installation CentOS 6 - Revision history

Kir: Reverted edits by 163.47.13.106 (talk) to last revision by Sblaydes

2015-10-15T11:12:42Z

Reverted edits by 163.47.13.106 (talk) to last revision by Sblaydes

163.47.13.106: error occur :(

2015-10-15T09:41:52Z

error occur :(

Sblaydes: Added ploop to the OpenVZ utils yum install line.

2015-03-05T18:19:19Z

Added ploop to the OpenVZ utils yum install line.

Kir: added a warning

2014-02-06T00:27:51Z

added a warning

Narcisgarcia: /* Quick OpenVZ setup on CentOS 6 */ Disable SELinux

2013-04-14T08:14:57Z

‎Quick OpenVZ setup on CentOS 6: Disable SELinux

Oskar at 23:38, 19 February 2013

2013-02-19T23:38:56Z

Oskar: Created page with "== Quick OpenVZ setup on CentOS 6 == This quick installation quide assumes you have CentOS 6 64-bit installed with SELinux and Firewall disabled, and that the containers will..."

2013-02-19T23:29:47Z

Created page with "== Quick OpenVZ setup on CentOS 6 == This quick installation quide assumes you have CentOS 6 64-bit installed with SELinux and Firewall disabled, and that the containers will..."

New page

== Quick OpenVZ setup on CentOS 6 ==

This quick installation quide assumes you have CentOS 6 64-bit installed with SELinux and Firewall disabled, and that the containers will be on the same subnet as the host node.

The node's IP is 192.168.1.99/24 and the gateway is 192.168.1.1. The containers will have 192.168.1.101, 192.168.1.102, etc...

* Add the OpenVZ yum repo
<pre>
# wget -O /etc/yum.repos.d/openvz.repo http://download.openvz.org/openvz.repo
# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ
</pre>

* Ensure the yum repo points to RHEL6 packages
<pre>
# vi /etc/yum.repos.d/openvz.repo
</pre>

* Install the OpenVZ kernel and ensure it's the 1st option in grub
<pre>
# yum install vzkernel
# vi /boot/grub/menu.lst
</pre>

* Install the OpenVZ utilities
<pre>
# yum install vzctl vzquota
</pre>

* Tune /etc/sysctl.conf
<pre>
# vi /etc/sysctl.conf
net.ipv4.ip_forward = 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
net.ipv4.icmp_echo_ignore_broadcasts=1
net.ipv4.conf.default.forwarding=1
</pre>

The last 2 steps are necessary only if you are planning on using '''veth''' containers

* Create a vmbr0 bridge and add the host's interface to it
<pre>
# vi /etc/sysconfig/network-scripts/ifcfg-vmbr0
DEVICE="vmbr0"
BOOTPROTO="static"
IPV6INIT="no"
ONBOOT="yes"
TYPE="Bridge"
DELAY=0
IPADDR=192.168.1.99
NETMASK=255.255.255.0
GATEWAY=192.168.1.1

# vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
ONBOOT="yes"
IPV6INIT="no"
TYPE="Ethernet"
BRIDGE="vmbr0"
</pre>

* Create /etc/vz/vznet.conf with the following content. This will automatically add/remove the container's interface to the bridge when you start/stop the container.
<pre>
# vi /etc/vz/vznet.conf
#!/bin/bash
EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
</pre>

* Done. Reboot

== Create a VENET Container ==

* Create a CT
<pre>
# vzctl create 101 --ostemplate centos-6-x86_64 --config vswap-1g
</pre>

* Configure the CT
<pre>
# vzctl set 101 --save --name server101
# vzctl set 101 --save --onboot yes
# vzctl set 101 --save --hostname server101.example.com
# vzctl set 101 --save --ipadd 192.168.1.101
# vzctl set 101 --save --searchdomain example.com
# vzctl set 101 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4
# vzctl set 101 --save --cpus 4
# vzctl set 101 --save --ram 8G
# vzctl set 101 --save --swap 4G
# vzctl set 101 --save --diskspace 100G
# vzctl start 101
# vzctl exec 101 passwd
</pre>

* Done. Enjoy your new VENET container

== Create a VETH Container ==

* Create a CT
<pre>
# vzctl create 102 --ostemplate centos-6-x86_64 --config vswap-1g
</pre>

* Configure the CT
<pre>
# vzctl set 102 --save --name server102
# vzctl set 102 --save --onboot yes
# vzctl set 102 --save --hostname server102.example.com
# vzctl set 102 --save --netif_add eth0,,,FE:FF:FF:FF:FF:FF
# vzctl set 102 --save --searchdomain example.com
# vzctl set 102 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4
# vzctl set 102 --save --cpus 4
# vzctl set 102 --save --ram 8G
# vzctl set 102 --save --swap 4G
# vzctl set 102 --save --diskspace 100G
# vzctl start 102
# vzctl exec 102 passwd
</pre>

FE:FF:FF:FF:FF:FF will ensure a permanent MAC address on the bridge interface.

(Linux bridges behave strangely. They use the smallest MAC address of all the attached interfaces. If you add a new interface to the bridge with an even smaller MAC, the MAC of the bridge will change causing network interruption until the switch re-learns the new MAC)

* Configure the network of a RHEL-based container
<pre>
# cat << _EOF_ > /vz/root/102/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
HOSTNAME="server102"
IPV6INIT="no"
MTU="1500"
TYPE="Ethernet"
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.1.102
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
_EOF_

# vzctl exec 102 /etc/init.d/network restart
</pre>

* Configure the network of a Debian-based container
<pre>
# cat << _EOF_ > /vz/root/102/etc/network/interfaces
auto lo eth0
iface lo inet loopback
iface eth0 inet static
address 192.168.1.102
netmask 255.255.255.0
gateway 192.168.1.1
_EOF_

# vzctl exec 102 /etc/init.d/networking restart
</pre>

* Done. Enjoy your new VETH container

← Older revision		Revision as of 09:41, 15 October 2015
Line 1:		Line 1:
−	~~{{Warning\|This is an unofficial guide, use at your own risk. For an official guide, see [[Quick installation]].}}~~	+	error
−
−	This quick installation quide assumes you have CentOS 6 64-bit installed with [http://wiki.centos.org/HowTos/Virtualization/OpenVZ SELinux and Firewall disabled], and that the containers will be on the same subnet as the host node.
−
−	~~The node's IP is 192.168.1.99/24 and the gateway is 192.168.1.1. The containers will have 192.168.1.101, 192.168.1.102, etc...~~
−
−	* Add the OpenVZ yum repo
−	~~<pre>~~
−	~~# wget -O /etc/yum.repos.d/openvz.repo http://download.openvz.org/openvz.repo~~
−	~~# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ~~
−	~~</pre>~~
−
−	* Ensure the yum repo points to RHEL6 packages
−	~~<pre>~~
−	~~# vi /etc/yum.repos.d/openvz.repo~~
−	~~</pre>~~
−
−	* Install the OpenVZ kernel and ensure it's the 1st option in grub
−	~~<pre>~~
−	~~# yum install vzkernel~~
−	~~# vi /boot/grub/menu.lst~~
−	~~</pre>~~
−
−	* Install the OpenVZ utilities
−	~~<pre>~~
−	~~# yum install vzctl vzquota ploop~~
−	~~</pre>~~
−
−	* Tune /etc/sysctl.conf
−	~~<pre>~~
−	~~# vi /etc/sysctl.conf~~
−	~~net.ipv4.ip_forward = 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~~
−	~~net.ipv4.icmp_echo_ignore_broadcasts=1~~
−	~~net.ipv4.conf.default.forwarding=1~~
−	~~</pre>~~
−
−	~~The last 2 steps are necessary only if you are planning on using '''veth''' containers~~
−
−	* Create a vmbr0 bridge and add the host's interface to it
−	~~<pre>~~
−	~~# vi /etc/sysconfig/network-scripts/ifcfg-vmbr0~~
−	~~DEVICE="vmbr0"~~
−	~~BOOTPROTO="static"~~
−	~~IPV6INIT="no"~~
−	~~ONBOOT="yes"~~
−	~~TYPE="Bridge"~~
−	~~DELAY=0~~
−	~~IPADDR=192.168.1.99~~
−	~~NETMASK=255.255.255.0~~
−	~~GATEWAY=192.168.1.1~~
−
−	~~# vi /etc/sysconfig/network-scripts/ifcfg-eth0~~
−	~~DEVICE="eth0"~~
−	~~ONBOOT="yes"~~
−	~~IPV6INIT="no"~~
−	~~TYPE="Ethernet"~~
−	~~BRIDGE="vmbr0"~~
−	~~</pre>~~
−
−	* Create /etc/vz/vznet.conf with the following content. This will automatically add/remove the container's interface to the bridge when you start/stop the container.
−	~~<pre>~~
−	~~# vi /etc/vz/vznet.conf~~
−	~~#!/bin/bash~~
−	~~EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"~~
−	~~</pre>~~
−
−	* Done. Reboot
−
−	~~== Create a VENET Container ==~~
−
−	* Create a CT
−	~~<pre>~~
−	~~# vzctl create 101 --ostemplate centos-6-x86_64 --config vswap-1g~~
−	~~</pre>~~
−
−	* Configure the CT
−	~~<pre>~~
−	~~# vzctl set 101 --save --name server101~~
−	~~# vzctl set 101 --save --onboot yes~~
−	~~# vzctl set 101 --save --hostname server101.example.com~~
−	~~# vzctl set 101 --save --ipadd 192.168.1.101~~
−	~~# vzctl set 101 --save --searchdomain example.com~~
−	~~# vzctl set 101 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4~~
−	~~# vzctl set 101 --save --cpus 4~~
−	~~# vzctl set 101 --save --ram 8G~~
−	~~# vzctl set 101 --save --swap 4G~~
−	~~# vzctl set 101 --save --diskspace 100G~~
−	~~# vzctl start 101~~
−	~~# vzctl exec 101 passwd~~
−	~~</pre>~~
−
−	* Done. Enjoy your new VENET container
−
−	~~== Create a VETH Container ==~~
−
−	* Create a CT
−	~~<pre>~~
−	~~# vzctl create 102 --ostemplate centos-6-x86_64 --config vswap-1g~~
−	~~</pre>~~
−
−	* Configure the CT
−	~~<pre>~~
−	~~# vzctl set 102 --save --name server102~~
−	~~# vzctl set 102 --save --onboot yes~~
−	~~# vzctl set 102 --save --hostname server102.example.com~~
−	~~# vzctl set 102 --save --netif_add eth0,,,FE:FF:FF:FF:FF:FF~~
−	~~# vzctl set 102 --save --searchdomain example.com~~
−	~~# vzctl set 102 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4~~
−	~~# vzctl set 102 --save --cpus 4~~
−	~~# vzctl set 102 --save --ram 8G~~
−	~~# vzctl set 102 --save --swap 4G~~
−	~~# vzctl set 102 --save --diskspace 100G~~
−	~~# vzctl start 102~~
−	~~# vzctl exec 102 passwd~~
−	~~</pre>~~
−
−	~~FE:FF:FF:FF:FF:FF will ensure a permanent MAC address on the bridge interface.~~
−
−	(Linux bridges behave strangely. They use the smallest MAC address of all the attached interfaces. If you add a new interface to the bridge with an even smaller MAC, the MAC of the bridge will change causing network interruption until the switch re-learns the new MAC)
−
−	* Configure the network of a RHEL-based container
−	~~<pre>~~
−	~~# cat << _EOF_ > /vz/root/102/etc/sysconfig/network-scripts/ifcfg-eth0~~
−	~~DEVICE="eth0"~~
−	~~HOSTNAME="server102"~~
−	~~IPV6INIT="no"~~
−	~~MTU="1500"~~
−	~~TYPE="Ethernet"~~
−	~~ONBOOT=yes~~
−	~~BOOTPROTO=static~~
−	~~IPADDR=192.168.1.102~~
−	~~NETMASK=255.255.255.0~~
−	~~GATEWAY=192.168.1.1~~
−	~~_EOF_~~
−
−	~~# vzctl exec 102 /etc/init.d/network restart~~
−	~~</pre>~~
−
−	* Configure the network of a Debian-based container
−	~~<pre>~~
−	~~# cat << _EOF_ > /vz/root/102/etc/network/interfaces~~
−	~~auto lo eth0~~
−	~~iface lo inet loopback~~
−	~~iface eth0 inet static~~
−	~~address 192.168.1.102~~
−	~~netmask 255.255.255.0~~
−	~~gateway 192.168.1.1~~
−	~~_EOF_~~
−
−	~~# vzctl exec 102 /etc/init.d/networking restart~~
−	~~</pre>~~
−
−	* Done. Enjoy your new VETH container
−
−	~~[[Category: Installation]]~~
−	~~[[Category: HOWTO]]~~

← Older revision		Revision as of 00:27, 6 February 2014
Line 1:		Line 1:
−	== Quick ~~OpenVZ setup on CentOS 6 ==~~	+	{{Warning\|This is an unofficial guide, use at your own risk. For an official guide, see [[Quick installation]].}}

	This quick installation quide assumes you have CentOS 6 64-bit installed with [http://wiki.centos.org/HowTos/Virtualization/OpenVZ SELinux and Firewall disabled], and that the containers will be on the same subnet as the host node.		This quick installation quide assumes you have CentOS 6 64-bit installed with [http://wiki.centos.org/HowTos/Virtualization/OpenVZ SELinux and Firewall disabled], and that the containers will be on the same subnet as the host node.

← Older revision		Revision as of 23:38, 19 February 2013
Line 157:		Line 157:

	* Done. Enjoy your new VETH container		* Done. Enjoy your new VETH container
		+
		+	[[Category: Installation]]
		+	[[Category: HOWTO]]

← Older revision		Revision as of 11:12, 15 October 2015
Line 1:		Line 1:
−	~~error~~	+	{{Warning\|This is an unofficial guide, use at your own risk. For an official guide, see [[Quick installation]].}}
		+
		+	This quick installation quide assumes you have CentOS 6 64-bit installed with [http://wiki.centos.org/HowTos/Virtualization/OpenVZ SELinux and Firewall disabled], and that the containers will be on the same subnet as the host node.
		+
		+	The node's IP is 192.168.1.99/24 and the gateway is 192.168.1.1. The containers will have 192.168.1.101, 192.168.1.102, etc...
		+
		+	* Add the OpenVZ yum repo
		+	<pre>
		+	# wget -O /etc/yum.repos.d/openvz.repo http://download.openvz.org/openvz.repo
		+	# rpm --import http://download.openvz.org/RPM-GPG-Key-OpenVZ
		+	</pre>
		+
		+	* Ensure the yum repo points to RHEL6 packages
		+	<pre>
		+	# vi /etc/yum.repos.d/openvz.repo
		+	</pre>
		+
		+	* Install the OpenVZ kernel and ensure it's the 1st option in grub
		+	<pre>
		+	# yum install vzkernel
		+	# vi /boot/grub/menu.lst
		+	</pre>
		+
		+	* Install the OpenVZ utilities
		+	<pre>
		+	# yum install vzctl vzquota ploop
		+	</pre>
		+
		+	* Tune /etc/sysctl.conf
		+	<pre>
		+	# vi /etc/sysctl.conf
		+	net.ipv4.ip_forward = 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
		+	net.ipv4.icmp_echo_ignore_broadcasts=1
		+	net.ipv4.conf.default.forwarding=1
		+	</pre>
		+
		+	The last 2 steps are necessary only if you are planning on using '''veth''' containers
		+
		+	* Create a vmbr0 bridge and add the host's interface to it
		+	<pre>
		+	# vi /etc/sysconfig/network-scripts/ifcfg-vmbr0
		+	DEVICE="vmbr0"
		+	BOOTPROTO="static"
		+	IPV6INIT="no"
		+	ONBOOT="yes"
		+	TYPE="Bridge"
		+	DELAY=0
		+	IPADDR=192.168.1.99
		+	NETMASK=255.255.255.0
		+	GATEWAY=192.168.1.1
		+
		+	# vi /etc/sysconfig/network-scripts/ifcfg-eth0
		+	DEVICE="eth0"
		+	ONBOOT="yes"
		+	IPV6INIT="no"
		+	TYPE="Ethernet"
		+	BRIDGE="vmbr0"
		+	</pre>
		+
		+	* Create /etc/vz/vznet.conf with the following content. This will automatically add/remove the container's interface to the bridge when you start/stop the container.
		+	<pre>
		+	# vi /etc/vz/vznet.conf
		+	#!/bin/bash
		+	EXTERNAL_SCRIPT="/usr/sbin/vznetaddbr"
		+	</pre>
		+
		+	* Done. Reboot
		+
		+	== Create a VENET Container ==
		+
		+	* Create a CT
		+	<pre>
		+	# vzctl create 101 --ostemplate centos-6-x86_64 --config vswap-1g
		+	</pre>
		+
		+	* Configure the CT
		+	<pre>
		+	# vzctl set 101 --save --name server101
		+	# vzctl set 101 --save --onboot yes
		+	# vzctl set 101 --save --hostname server101.example.com
		+	# vzctl set 101 --save --ipadd 192.168.1.101
		+	# vzctl set 101 --save --searchdomain example.com
		+	# vzctl set 101 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4
		+	# vzctl set 101 --save --cpus 4
		+	# vzctl set 101 --save --ram 8G
		+	# vzctl set 101 --save --swap 4G
		+	# vzctl set 101 --save --diskspace 100G
		+	# vzctl start 101
		+	# vzctl exec 101 passwd
		+	</pre>
		+
		+	* Done. Enjoy your new VENET container
		+
		+	== Create a VETH Container ==
		+
		+	* Create a CT
		+	<pre>
		+	# vzctl create 102 --ostemplate centos-6-x86_64 --config vswap-1g
		+	</pre>
		+
		+	* Configure the CT
		+	<pre>
		+	# vzctl set 102 --save --name server102
		+	# vzctl set 102 --save --onboot yes
		+	# vzctl set 102 --save --hostname server102.example.com
		+	# vzctl set 102 --save --netif_add eth0,,,FE:FF:FF:FF:FF:FF
		+	# vzctl set 102 --save --searchdomain example.com
		+	# vzctl set 102 --save --nameserver 8.8.8.8 --nameserver 8.8.4.4
		+	# vzctl set 102 --save --cpus 4
		+	# vzctl set 102 --save --ram 8G
		+	# vzctl set 102 --save --swap 4G
		+	# vzctl set 102 --save --diskspace 100G
		+	# vzctl start 102
		+	# vzctl exec 102 passwd
		+	</pre>
		+
		+	FE:FF:FF:FF:FF:FF will ensure a permanent MAC address on the bridge interface.
		+
		+	(Linux bridges behave strangely. They use the smallest MAC address of all the attached interfaces. If you add a new interface to the bridge with an even smaller MAC, the MAC of the bridge will change causing network interruption until the switch re-learns the new MAC)
		+
		+	* Configure the network of a RHEL-based container
		+	<pre>
		+	# cat << _EOF_ > /vz/root/102/etc/sysconfig/network-scripts/ifcfg-eth0
		+	DEVICE="eth0"
		+	HOSTNAME="server102"
		+	IPV6INIT="no"
		+	MTU="1500"
		+	TYPE="Ethernet"
		+	ONBOOT=yes
		+	BOOTPROTO=static
		+	IPADDR=192.168.1.102
		+	NETMASK=255.255.255.0
		+	GATEWAY=192.168.1.1
		+	_EOF_
		+
		+	# vzctl exec 102 /etc/init.d/network restart
		+	</pre>
		+
		+	* Configure the network of a Debian-based container
		+	<pre>
		+	# cat << _EOF_ > /vz/root/102/etc/network/interfaces
		+	auto lo eth0
		+	iface lo inet loopback
		+	iface eth0 inet static
		+	address 192.168.1.102
		+	netmask 255.255.255.0
		+	gateway 192.168.1.1
		+	_EOF_
		+
		+	# vzctl exec 102 /etc/init.d/networking restart
		+	</pre>
		+
		+	* Done. Enjoy your new VETH container
		+
		+	[[Category: Installation]]
		+	[[Category: HOWTO]]

@@ Line 24: / Line 24: @@
 * Install the OpenVZ utilities
 <pre>
-# yum install vzctl vzquota
+# yum install vzctl vzquota ploop
 </pre>

@@ Line 1: / Line 1: @@
 == Quick OpenVZ setup on CentOS 6 ==
-This quick installation quide assumes you have CentOS 6 64-bit installed with SELinux and Firewall disabled, and that the containers will be on the same subnet as the host node.
+This quick installation quide assumes you have CentOS 6 64-bit installed with [http://wiki.centos.org/HowTos/Virtualization/OpenVZ SELinux and Firewall disabled], and that the containers will be on the same subnet as the host node.
 The node's IP is 192.168.1.99/24 and the gateway is 192.168.1.1. The containers will have 192.168.1.101, 192.168.1.102, etc...