January 20, 2014 — 0:44

Author: silver  Category: linux virtualization  Comments: Off

Virtuozzo virtualization (VZ):

• Virtuozzo Containers
• Virutozzo Storage (formerly PCS or Parallels Cloud Server/Storage).
  • https://virtuozzo.com
  • http://kb.virtuozzo.com
  • formerly by Odin, Parallels and SWSoft before that
• OpenVZ is the free open source software basis.
  • https://openvz.org

Commands:

Create Container:

vzctl set 104 --save --ipadd 10.0.0.104/24 --hostname node104 --nameserver 8.8.8.8 --userpasswd root:node104
vzctl create 99 --ostemplate centos-6-x86_64
vzctl set 99 --save --hostname bla.eu --ipadd 1.2.3.4/24 --nameserver 8.8.8.8

Optional parameters: --diskspace 10000000 # 10GB diskspace --ram 1024M --swap 512M
UBC: physpages swappages 262144×8 = 8GB

prlctl create 101 --vmtype ct

Create VM:

ls /etc/vz/conf/dists
prlctl create MyVM --distribution win-2008 --vmtype vm

List containers:

vzlist -o ctid,hostname,ip,gw,offline_management,status,ostemplate,uptime
vzps -eo ctid,user,vpid,pid,pcpu,pmem,vsz,tty,stat,start_time,bsdtime,args

vzps -eo veid,user,vpid,pid,pcpu,pmem,vsz,tty,stat,start_time,bsdtime,args IFS=$'\n'; for i in $(vzlist -a -H); do I=$(echo $i|awk '{ print $1 }'); H=$(echo $i|awk '{ print $(NF) }'); echo $H: $(vzctl exec $I uptime); done

Packages:

Install/remove package in container:

vzpkg install -p 101 yum
vzpkg remove -p 101 postgresql -w

Update package cache:

vzpkg update cache centos-6-x86_64

Backup:

List on server:

# vzarestore -l -f
# vzarestore --browse xxxx-0000-0000-0000-xxxx/20140708031442 -d /dir

List vzabackups with oneliner:

for i in $( find /vz/backups -mtime +365 -name info -exec ls -1 "{}" \; | sed 's/\/info$//' ); do echo `ls -1d --full-time $i` `strings $i/info | sed -n -e 9p -e 13p | sed 's/Linux//'` `du -hs $i | cut -f1`; done | sort -k 6

Client:

# vzarestore 1207 --files /dir/file -b xxxx-0000-0000-0000-xxxx/20140708031442 --skip-ve-config --storage [email protected]

Exec:

exec ls on all ct’s on hwnode

for i in $( vzlist -Hoveid ); do vzctl exec $i ls; done

Clone container:

vzmlocal -C 101:111

Migrate container:

pmigrate c localhost/<CTID> c host2/<CTID> --online -v

Stats:

cat /proc/vz/hwid
vzstat

PCS:

Move CT:

Important! For the command to be successful, a direct SSH connection (on port 22) should be allowed between the source and destination servers.
Make sure network connection can be established from destination to the source TCP port 1622.

# prlctl migrate

VNC:

echo <vnc_password> | nohup prl_vncserver_app --auto-port --min-port 5800 --max-port 65535 --passwd <VM_UUID> &
prlctl set name --vnc-mode auto --vnc-passwd pass123
vncviewer localhost:5800 -geometry=1280x960

Parallels Tools

prlctl installtools <VM_NAME>

Windows VM:

prlctl set  --device-set cdrom0 --connect --enable --image /usr/share/parallels-server/tools/prl-tools-win.iso

Network:

vzctl set 1788 –save –netif_add eth0
vzctl set 1788 –save –ifname eth0 –network NW-NAME –gateway 10.0.0.1 –ipadd 10.0.0.10/255.255.255.0 –dhcp6 yes
prlctl set 1788 –device-add net –network NW-NAME –ipadd 10.0.0.10/255.255.255.0 –ipadd 10.0.0.11/255.255.255.0 –dhcp6 yes –gw 10.0.0.1

VZ Windows:

Fix pva agent:

echo exit > exit.cmd
for /f %i in ('vzlist -Ho veid') do vzctl enter %i < exit.cmd

bind mounts (nfs, cifs):

vzctl set 1113 --bindmount_add /vz/www:/var/www/vhosts/1,nosuid,noexec,nodev /mnt/dir1:/mnt/dir2,nosuid,noexec,nodev --save
mount -n -t simfs /vz/www /vz/root/1502/var/www/vhosts/2 -o /vz/www