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Here are the example commands needed:
 
Here are the example commands needed:
  
−
  # NAME=vz
+
  # CT=123
−
  # IP=10.1.1.123/24
+
  # IP=10.1.1.123
 
  # sed -i "/$IP /d" ~/.ssh/
 
  # sed -i "/$IP /d" ~/.ssh/
−
  # time prlctl create $NAME --ostemplate centos-6-x86_64 --vmtype=ct
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  # time vzctl create $CT --ostemplate fedora-core-5-i386-default
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  # prlctl set $NAME --ipadd $IP --hostname $NAME
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  # vzctl set $CT --ipadd $IP --hostname newCT --save
−
  # prlctl start $NAME
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  # vzctl start $CT
−
  # prlctl exec $NAME ps axf
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  # vzctl exec $CT ps axf
−
  # prlctl set $NAME --userpasswd guest:secret
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  # vzctl set $CT --userpasswd guest:secret --save
 
  # ssh guest@$IP
 
  # ssh guest@$IP
−
  [vz]# ps axf
+
  [newCT]# ps axf
−
  [vz]# logout
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  [newCT]# logout
−
  # prlctl stop $NAME
+
  # vzctl stop $CT
−
  # prlctl destroy $NAME
+
  # vzctl destroy $CT
  
−
== Multiple containers creation ==
+
== Massive container creation ==
  
−
Create/start 10 containers in a shell loop.
+
Create/start 50 or 100 containers in a shell loop. Shows fast deployment
 +
and high density.
  
 
Here are the example commands needed:
 
Here are the example commands needed:
  
 
<pre>
 
<pre>
−
# time for ((CT=100; CT<110; CT++)); do \
+
# time for ((CT=200; CT<250; CT++)); do \
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  time prlctl create $CT --ostemplate centos-6-x86_64 --vmtype=ct; \
+
>  time vzctl create $CT --ostemplate fedora-core-9-i386; \
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  prlctl start $CT; \
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>  vzctl start $CT; \
−
  done
+
> done
 
</pre>
 
</pre>
  
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<pre>
 
<pre>
 
# for ((CT=200; CT<250; CT++)); do \
 
# for ((CT=200; CT<250; CT++)); do \
−
  prlctl set $CT --ipadd 10.1.1.$CT/24; \
+
>  vzctl set $CT --ipadd 10.1.1.$CT --save; \
−
  done
+
> done
 
</pre>
 
</pre>
  
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== Live migration ==
 
== Live migration ==
−
 
−
=== xscreensaver inside container ===
 
  
 
If you have two boxes, do <code>vzmigrate --online</code> from one box
 
If you have two boxes, do <code>vzmigrate --online</code> from one box
Line 75: Line 74:
 
FIXME: commands, setup, VNC template.
 
FIXME: commands, setup, VNC template.
  
−
=== CRIU (Checkpoint and Restore In Userspace) ===
+
=== CRIU (Checkpoint and Restore In Userspace ===
  
−
* [http://criu.org/Simple_loop Simple loop]
 
 
* [https://github.com/tych0/presentations/blob/master/ods2014.md Migration of Doom inside container inside LXC container]
 
* [https://github.com/tych0/presentations/blob/master/ods2014.md Migration of Doom inside container inside LXC container]
 
* [http://criu.org/Docker Checkpoint and Restore of Docker container]
 
* [http://criu.org/Docker Checkpoint and Restore of Docker container]
 
* [https://github.com/jpetazzo/critmux CRIU + tmux]
 
* [https://github.com/jpetazzo/critmux CRIU + tmux]
−
 
+
* [http://criu.org/Simple_loop Simple loop]
−
This is a tech demo of [http://criu.org/ CRIU] and Docker integration, featuring [https://tmux.github.io/ tmux].
 
−
 
 
−
<pre>
 
−
docker run -t -i --privileged --name critmux jpetazzo/critmux
 
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Do stuff in tmux. Don't know what to do? Just type a few characters.
 
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From another terminal, docker stop critmux. Container stops.
 
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docker start critmux ; docker attach critmux. MIND. BLOWN.
 
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Note: docker start -a doesn't quite work.
 
−
</pre>
 
−
 
 
−
See [https://asciinema.org/a/9889 screencast] recorded with Asciinema.
 
−
 
 
 
* [http://criu.org/Asciinema CRIU screencasts]
 
* [http://criu.org/Asciinema CRIU screencasts]
−
* [http://blog.kubernetes.io/2015/07/how-did-quake-demo-from-dockercon-work.html How did the Quake demo from DockerCon Work?]
 
−
* [https://github.com/ianmiell/shutit-criu Live migration of Docker container inside Vagrant box]
 
−
 
−
=== P.Haul ===
 
−
 
−
* [https://github.com/xemul/p.haul/blob/master/test/mtouch/HOWTO P.Haul HOWTO]
 
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* [https://github.com/xemul/p.haul/wiki/Live-migrating-OVZ-mainstream-container Live migrating OVZ mainstream container]
 
−
 
−
== Docker inside CT ==
 
−
 
−
[[Docker_inside_CT]]
 
  
 
== Resource management ==
 
== Resource management ==
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<pre>
 
<pre>
 
# while [ true ]; do \
 
# while [ true ]; do \
−
    while [ true ]; do \
+
>    while [ true ]; do \
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        echo " " > /dev/null;
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>        echo " " > /dev/null;
−
    done &
+
>    done &
−
done
+
> done
 
</pre>
 
</pre>
  
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=== CPU scheduler ===
 
=== CPU scheduler ===
 +
 +
{{Warning|CPU weights only works in stable kernels.}}
  
 
Create 3 containers:
 
Create 3 containers:
 
<pre>
 
<pre>
−
# prlctl create 101
+
# vzctl create 101
−
# prlctl create 102
+
# vzctl create 102
−
# prlctl create 103
+
# vzctl create 103
 
</pre>
 
</pre>
  
 
Set container weights:
 
Set container weights:
 
<pre>
 
<pre>
−
# prlctl set 101 --cpuunits 1000
+
# vzctl set 101 --cpuunits 1000 --save
−
# prlctl set 102 --cpuunits 2000
+
# vzctl set 102 --cpuunits 2000 --save
−
# prlctl set 103 --cpuunits 3000
+
# vzctl set 103 --cpuunits 3000 --save
 
</pre>
 
</pre>
  
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Start containers:
 
Start containers:
 
<pre>
 
<pre>
−
# prlctl start 101
+
# vzctl start 101
−
# prlctl start 102
+
# vzctl start 102
−
# prlctl start 103
+
# vzctl start 103
 
</pre>
 
</pre>
  
 
Run busy loops in all containers:
 
Run busy loops in all containers:
 
<pre>
 
<pre>
−
# prlctl enter 101
+
# vzctl enter 101
 
[ve101]# while [ true ]; do true; done
 
[ve101]# while [ true ]; do true; done
−
# prlctl enter 102
+
# vzctl enter 102
 
[ve102]# while [ true ]; do true; done
 
[ve102]# while [ true ]; do true; done
−
# prlctl enter 103
+
# vzctl enter 103
 
[ve103]# while [ true ]; do true; done
 
[ve103]# while [ true ]; do true; done
 
</pre>
 
</pre>
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=== Disk quota ===
 
=== Disk quota ===
 
<pre>
 
<pre>
−
# prlctl set CTID --diskspace 1048576:1153434 --save
+
# vzctl set CTID --diskspace 1048576:1153434 --save
−
# prlctl start CTID
+
# vzctl start CTID
−
# prlctl enter CTID
+
# vzctl enter CTID
 
[ve]# dd if=/dev/zero of=/tmp/tmp.file bs=1048576 count=1000
 
[ve]# dd if=/dev/zero of=/tmp/tmp.file bs=1048576 count=1000
 
dd: writing `/tmp/tmp.file': Disk quota exceeded
 
dd: writing `/tmp/tmp.file': Disk quota exceeded
 
</pre>
 
</pre>
  
−
 
−
== See also ==
 
−
 
−
* [http://criu.org/Asciinema CRIU screencasts]
 
−
* [https://www.youtube.com/c/OpenVZorg OpenVZ demo on Youtube]
 
−
* [[Screencasts|Virtuozzo screencasts]]
 
−
* [https://github.com/ligurio/jslinux-criu CRIU inside jslinux]
 
  
 
[[Category:Events‏‎]]
 
[[Category:Events‏‎]]

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