LXD 2.17 has been released

The changes in this release include

New features:

  • Add support for specifying the ceph user (using the “ceph.user.name” property)
  • Implement “instance types” as an easy way to specify limits (e.g. “lxc launch ubuntu:16.04 -t t2.micro”)
  • Add a new “lxc query” command as a low level query tool for the LXD API (similar to curl but with LXD knowledge)
  • Filesystem ACLs are now rewritten when the container changes uid/gid map
  • LXD now supports using binary deltas when refreshing daily images
  • “lxc image info” now shows whether an image was automatically cached by LXD


  • client: Cleanup code duplication in image download function
  • client: Remove deprecated client code
  • client: Simplify ConnectPublicLXD logic
  • doc: Add storage documentation for volatile.pool.pristine
  • doc: Add the volatile.initial_source key
  • doc: Fix bad JSON in rest-api.md (Issue #3654)
  • doc: Properly escape path params
  • extra/lxc-to-lxd: Ignore capabilities that are dropped by default
  • extra/lxc-to-lxd: Ignore sysfs/proc mounts
  • extra/lxc-to-lxd: Properly handle lxc.seccomp
  • i18n: Update translations from weblate
  • lxc: Fix race in progress reporter
  • lxc: Re-introduce remote protocol migration
  • lxc/config: Expose extra certificate functions (Issue #3606)
  • lxc/image: Fix copy of image aliases
  • lxc/image: Wait for the refresh to complete
  • lxc/remote: Don’t require a crt for public remotes (Issue #3627)
  • lxd: Move lxd/util.go into its own lxd/util/ sub-package
  • lxd/containers: Allow passing disk devices with the LXD snap (Issue #3660)
  • lxd/containers: Another LXC 2.1 key rename, lxc.idmap
  • lxd/containers: Fix a typo: now -> know
  • lxd/containers: Fix gpu attach when mixing GPU vendors (Issue #3642)
  • lxd/containers: Fix sorting order of devices (Issue #2895)
  • lxd/containers: Fix support for isolcpu in CPU scheduler (Issue #3624)
  • lxd/containers: Make stateful snapshot restores work again
  • lxd/daemon: Add initial lxd/sys sub-package and OperatingSystem structure
  • lxd/daemon: d.os.Init must be run after all paths are created
  • lxd/daemon: Extract Daemon.ExpireLogs into a standalone function
  • lxd/daemon: Extract Daemon.GetListeners into a standalone function
  • lxd/daemon: Extract Daemon.httpClient into a standalone HTTPClient function
  • lxd/daemon: Extract Daemon.ListenAddresses into a standalone function
  • lxd/daemon: Extract Daemon.PasswordCheck into a standalone function
  • lxd/daemon: Extract Daemon.SetupStorageDriver into a standalone function
  • lxd/daemon: Log a warning for unknown config keys instead of crashing
  • lxd/daemon: Move Daemon.BackingFs to the OS struct
  • lxd/daemon: Move Daemon.IdmapSet to OS.IdmapSet
  • lxd/daemon: Move Daemon.isRecursionRequest to the lxd/util sub-package
  • lxd/daemon: Move Daemon.lxcpath to OS.LxcPath
  • lxd/daemon: Move Daemon.MockMode to OS.MockMode
  • lxd/daemon: Move Deamon.CheckTrustState and Deamon.isTrustedClient to lxd/util
  • lxd/daemon: Move filesystemDetect function into lxd/util subpackage
  • lxd/daemon: Replace Daemon with State in all model entities
  • lxd/daemon: Use select and save a few goroutines
  • lxd/daemon: Use sql.DB or sys.OS instead of Daemon where possible
  • lxd/db: Drop dependencies on Daemon in db.go
  • lxd/db: Move db*.go files into their own db/ sub-package
  • lxd/images: Carry old “cached” value on refresh (Issue #3698)
  • lxd/import: Don’t use un-initialized structs
  • lxd/networks: Allow starting LXD without dnsmasq (Issue #3678)
  • lxd/networks: Fix networkIptablesClear with missing ip{6}tables (Issue #3688)
  • lxd/networks: Make “dev” work as a network name
  • lxd/networks: Set dnsmasq.raw to be 0644 (Issue #3652)
  • lxd/networks: Stop networks on clean shutdown
  • lxd/patches: Fix canmount=noauto patch (Issue #3594)
  • lxd/patches: Unset “size” for ZFS containers + images (Issue #3679)
  • lxd/storage: Count custom volumes in pool UsedBy
  • lxd/storage: Enable “volume.size” for {btrfs,zfs}
  • lxd/storage: Fix “size” property
  • lxd/storage: Fix wrong driver name for log output
  • lxd/storage: Non-functional changes
  • lxd/storage/ceph: Fix double --cluster
  • lxd/storage/ceph: Unmap until EINVAL
  • lxd/storage/ceph: Use “/dev/rbd” via sysfs
  • lxd/storage/ceph: Use minimal image feature set for clones
  • lxd/storage/dir: Check if directory is empty (Issue #3680)
  • lxd/storage/zfs: Always require existing datasets to be empty (Issue #3657)
  • lxd/storage/zfs: Refactoring
  • shared: Add wrapper to translate host paths
  • shared: Move GetRemoteCertificate from lxc/remote (Issue #3606)
  • tests: function to include storage backends helpers
  • tests: Refactor cleanup functions
  • tests: Split out lxc and lxd related helper functions
  • tests: Split out network-related helper functions
  • tests: Split out storage-related helper functions
  • tests: Split out test setup related helper functions
  • tests: Use $storage_backends variable

Try it for yourself

This new LXD release is already available for you to try on our demo service.


The release tarballs can be found on our download page.

Ubuntu packages

The Ubuntu package has been uploaded. Due to ongoing Go work in the Ubuntu development release, it may take several days for this package to be available to users (including our PPAs).

In a few days after additional manual validation is done on LXD 2.17, we’ll be pushing it to our Ubuntu 16.04 LTS and Ubuntu 17.04 users through xenial-backports and zesty-backports respectively.

Snap package

The LXD snap is present in the “candidate” channel: snap install --candidate lxd

The LXD snap has been confirmed to work on the following distributions:

  • ArchLinux (unprivileged containers require an alternative kernel)
  • Debian Stretch
  • Fedora 25
  • OpenSUSE 42.2
  • Ubuntu 14.04 and 16.04 LTS
  • Ubuntu Core 16

Note that upstream LXD still recommends the use of native packages over the snap package when such a package is available. We don’t consider our snap production ready yet, but hope it will soon be.

Here is a quick demo of the savings the delta image transfer is giving us:


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And a demo of the new instance types feature:


And lastly a quick demo of “lxc query”:


The LXD snap is present in the “candidate” channel: snap install --candidate lxd

not clear, I think I am running lxd from the ‘stable’ channel already. Have you changed anything in your release policy?

Nope. We immediately release to “candidate”, then after 24 to 48 hours promote that to the “stable” channel if we haven’t received any report of regressions/breakage from those using candidate.

The Ubuntu package is now available for users of Ubuntu 17.10 and those using our PPAs.

The LXD 2.17 snap is also being promoted to stable now and will be available to our users in the next hour or so.

Backports to xenial-backports and zesty-backports will be done early next week provided that we don’t get negative feedback from early adopters of LXD 2.17.