Author Archives: s3hh

LXD 0.3

LXD 0.3 has been released. This version provides huge usability improvements over past versions. Getting started Here’s an example of quickly getting started on a fresh Ubuntu 15.04 VM: sudo add-apt-repository ppa:ubuntu-lxc/lxd-daily sudo apt-get update sudo apt-get install lxd sudo … Continue reading

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Introducing lxcfs

Last year around this time, we were announcing the availability of cgmanager, a daemon allowing users and programs to easily administer and delegate cgroups over a dbus interface. It was key to supporting nested containers and unprivileged users. While its … Continue reading

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Where does lxd fit in

Since its announcement, there appears to have been some confusion and concern about lxd, how it relates to lxc, and whether it will be taking away from lxc development. When lxc was first started around 2007, it was mainly a … Continue reading

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Live container migration – on its way

The criu project has been working hard to make application checkpoint/restart feasible. Tycho has implemented lxc-checkpoint and lxc-restart on top of that (as well as of course contributing the needed bits to criu itself), and now shows off first steps … Continue reading

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rsync.net feature: subuids

The problem: Some time ago, I had a server “in the wild” from which I wanted some data backed up to my rsync.net account. I didn’t want to put sensitive credentials on this server in case it got compromised. The … Continue reading

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unprivileged btrfs clones

In 14.04 you can create unprivileged container clones usign overlayfs. Depending on your use case, these can be ideal, since the delta between your cloned and original containers is directly accessible as ~/.local/share/lxc/clonename/delta0/, ready to rsync. However, that is not … Continue reading

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Xspice in containers

For some time I’ve been wanting to run ubuntu-desktop and others, remotely, in containers, using spice. Historically vnc has been the best way to do remote desktops, but spice should provide a far better experience. Unfortunately, Xspice has always failed … Continue reading

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