This release comes with enabling stargz snapshotter to be import-ed as a builtin snapshotter plugin, supporting exporting prometheus metrics and rootless support for Ubuntu, Debian and any distro newer than Linux 5.11. For more details about rootless mode, please refer to the doc in nerdctl (https://github.com/containerd/nerdctl/pull/123).

Notable Changes

• Stargz Snapshotter

  • Support importing stargz snapshotter as a builtin plugin (https://github.com/containerd/stargz-snapshotter/pull/267)
  • Support exporting prometheus metrics (https://github.com/containerd/stargz-snapshotter/pull/288)
  • Support rootless on Linux > 5.11 (support for userxattr overlayfs option) (https://github.com/containerd/stargz-snapshotter/pull/290), thanks @AkihiroSuda
  • Add check if snapshotter is supported during starting up of the plugin (https://github.com/containerd/stargz-snapshotter/pull/282)
  • Add --version option to containerd-stargz-grpc (https://github.com/containerd/stargz-snapshotter/pull/269)
  • Refactoring filesystem and cache (https://github.com/containerd/stargz-snapshotter/pull/283)
  • Use containerd's scope generator function (https://github.com/containerd/stargz-snapshotter/pull/278)

• estargz library

  • Support to parse suid/sgid/sticky bits (https://github.com/containerd/stargz-snapshotter/pull/286)

• CI

  • Use nerdctl in CI (https://github.com/containerd/stargz-snapshotter/pull/273)