On Tue, Jan 15, 2008 at 12:26:43AM -0800, Dave Leskovec wrote:
Greetings,
Following up on the XML format for the Linux Container support I proposed... I've made the following recommended changes: * Changed mount tags * Changed nameserver tag to be consistent with gateway * Moved cpushare and memory tags outside container tag
This is the updated format: <domain type='linuxcontainer'> <name>Container123</name> <uuid>8dfd44b31e76d8d335150a2d98211ea0</uuid> <container> <filesystem> <mount> <source dir="/home/user/lxc_files/etc/"/> <target dir="/etc/"/> </mount> <mount> <source dir="/home/user/lxc_files/var/"/> <target dir="/var/"/> </mount> </filesystem>
Comparing this to the Linux-VServer XML that Daniel posted, you're both pretty much representing the same concepts so we need to make a decision about which format to use for filesystem mounts. OpenVZ also provides a /domain/container/filesystem tag, though it uses a concept of filesystem templates auto-cloned per container rather than explicit mounts. I think I'd like to see <filesystem type="mount"> <source dir="/home/user/lxc_files/etc/"/> <target dir="/etc/"/> </filesystem> For the existing OpenVZ XML, we can augment their <filesystem> tag with an attribute type="template".
<application>/usr/sbin/container_init</application> <network hostname='browndog'> <ip address="192.168.1.110" netmask="255.255.255.0"/> <gateway address="192.168.1.1"/> <nameserver address="192.168.1.1"/nameserver> </ip> </network>
Again this is pretty similar to needs of VServer / OpenVZ. In the existing OpenVZ XML, the gateway and nameserver tags are immediately within the <network> tag, rather than nested inside the <ip> tag. Aside from that it looks to be a consistent set of information.
</container> <cpushare>40</cpushare>
As Daniel points out, we've thus far explicitly excluded tuning info from the XML. Not that I have any suggestion on where else to put it at this time. This is a minor thing though, easily implemented once we come to a decision.
<memory>65536</memory> <devices> <console tty='/dev/pts/4'/> </devices> </domain>
Does this look ok now? All comments and questions are welcome.
Pretty close. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|