Open VZ

1/18/2025 5:48:10 PM in Japan

OpenVZについて

apt-get install linux-image-openvz-686

get http://download.openvz.org/template/precreated/debian-6.0-x86_64.tar.gz to /var/liv/vz/template/cache/


mkdir /home/vz/private

vzctl create 1 --ostemplate=debian-6.0-x86_64

vzctl set 1 --hostname hostnamehogehoge --save
vzctl set 1 --nameserver 192.168.1.1 --save
vzctl set 1 --ipadd 192.168.1.? --save


file /etc/sysctl.conf
net.ipv4.ip_forward=1

sysctl -p

vzctl stop 1
vzctl start 1

backup
cd /home/vz/private/1
tar -zcf /var/lib/vz/template/cache/debian-6.0-x86_64-minimal.tar.gz .

reuse
vzctl create 2 --ostemplate=debian-6.0-x86_64-minimal


timezone
ln -s /usr/share/zoneinfo/Japan /etc/localtime



vzlist表示例
# vzlist
CTID  NPROC STATUS  IP_ADDR       HOSTNAME
  10     20 running 192.168.11.35 debian    mua
  81     37 running 192.168.11.81 db01      mysql
 100     20 running 192.168.11.91 web01     apache, nginx
 102     14 running 192.168.11.93 app01     tomcat
 106     ?? running 192.168.11.96 debianapp debian etc


diskspaceサイズ調整
softlimit(8GByte):hardlimit(8GByte)
# vzctl set 100 --diskspace 8000000:8000000 --save

disk quotaの確認
CTID 100のquotaを確認
# vzquota stat 100
   resource     usage   softlimit    hardlimit   grace
	1k-blocks   4480476     8000000      8000000
     inodes    199537      200000       220000
※inode利用可能数が足りないようです。調整が必要です。

inodeのsoftlimit, hardlimitを2倍の値にセットします。
# vzctl set 100 --diskinodes 400000:420000 --save
UB limits were set successfully
CT configuration saved to /etc/vz/conf/100.conf


# vzquota stat 100
   resource     usage   softlimit    hardlimit   grace
	1k-blocks   4480480     8000000      8000000
     inodes    199537      400000       420000