One of the common feature request I've heard about LXC, especially from people who are used to OpenVZ is having a variety of hooks where they can run their own script at various point of the container lifetime.
I had a quick look at what was available on OpenVZ and worked on a list of hooks that I think would be useful to our users: - mount: Is run after the rootfs and any fstab entry for the container have been mounted but before the container is started - start: Is run after the container init is started - stop: Is run after the container died - umount: Is run before the rootfs and any fstab entry for the container are unmounted At least the mount and umount ones can be quite useful to implement features like the ephemeral containers where you want to stack an overlayfs container or setup bind mounts based on a script output. All of these scripts run outside of the container's namespaces. The above list is meant to make it easy for anyone coming from OpenVZ to convert their setup to LXC. Potential other hooks include pre-start and post-stop, running even before LXC mounts/umounts the rootfs but I'm not sure I'm seeing a use case for these right know (where they wouldn't work as "mount" hooks). These would be configurable in the container as: lxc.hook.<HOOK> = <PATH> Does that sound good to everyone? Are there other hooks we should make sure we implement? Anything else I missed? Thanks -- Stéphane Graber Ubuntu developer http://www.ubuntu.com
signature.asc
Description: OpenPGP digital signature
------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________ Lxc-devel mailing list Lxc-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-devel
