Weekly status for the week of the 6th to the 12th of August.
Introduction
This past week we spent a bit of time making LXD scale better by running a cluster with about 2000 active containers, checking what took longer than expected and making a few small optimizations to LXD which offered massive performance boosts.
Still on the clustering side, we’ve merged support for DNS clustering where LXD clusters using the FAN bridge will now get a single view of DNS on all nodes.
And then we have the usual set of other small improvements and bugfixes as well as some remaining fixes following the big dqlite change from last week.
This week, our focus will be on releases as we plan on releasing LXD 3.4 tomorrow, followed with a round of stable releases (3.0.2 for LXC, LXCFS and LXD) later in the week.
We’re also getting ready for conference season, you can find the full list of events we’ll be attending or presenting at below and have just opened the CFP for the containers micro-conference we run at the Linux Plumbers conference.
Upcoming conferences and events
- Open Source Summit North America - Vancouver, BC (August 29-31)
- Container Camp - London, UK (September 6-7)
- Open Source and Linux Conference - Kiev, Ukraine (September 15)
- All Systems Go - Berlin, Germany (September 28-30)
- Linux Security Summit Europe - Edinburgh, UK (October 22-24)
- Open Source Summit Europe - Edinburgh, UK (October 25-26)
- Linux Plumbers Conference - Vancouver, BC (November 13-15)
Getting started with LXD workshop in Vancouver
@brauner and @stgraber will be giving a “Getting started with LXD” workshop as part of the Open Source Summit North America conference in Vancouver, BC.
Details can be found here: http://sched.co/FANz
Ongoing projects
The list below is feature or refactoring work which will span several weeks/months and can’t be tied directly to a single Github issue or pull request.
- LXD projects
- Add support for custom volume snapshots
- Improve integration with macaroon/candid
- Switching distribution building over to distrobuilder
- Various kernel work
- Stable release work for LXC, LXCFS and LXD
Upstream changes
The items listed below are highlights of the work which happened upstream over the past week and which will be included in the next release.
LXD
- Made various cluster performance improvements
- Added support for external command aliases in
lxc - Added new bulk database container query functions
- Switched container querying code to using the bulk query functions
- Fixed
lxc.rootfsparsing inlxc-to-lxd - Fixed
no transaction is activedatabase error - Fixed a crash on bad remote name
- Fixed a bug in cluster join API when pending networks/storage pools are present
- Added optimized logic for querying disk usage on ZFS when refquota is used
- Added a built-in DNS server to forward DNS across LXD clusters
- Fixed container quota handling for CEPH
- Updated Makefile to set PKG_CONFIG_PATH when building dqlite
- Updated the list of requirements in documentation
- Added logic to cleanup leftover image artifacts on startup
- Updated README to match new requirements
- Added a few more packages to the list in README
- Made a few more tweaks to the README
- Updated README to mention LD_LIBRARY_PATH in sudo call
LXC
- Added logic to allocate a network namespace id
- Fixed a pointer dereference issue in container tests
- Fixed typing in lxc_netns_set_nsid
- Fixed assignment of signed to bigger unsigned variables
- Improved network namespace id allocation logic
- Added some new low-level netlink wrappers
- Fixed a thread-safety issues in localtime
LXCFS
- Nothing to report this week
Distrobuilder
- Nothing to report this week
Distribution work
This section is used to track the work done in downstream Linux distributions to ship the latest LXC, LXD and LXCFS as well as work to get various software to work properly inside containers.
Ubuntu
- Nothing to report this week
Snap
- Nothing to report this week