Provide a flag which configures a lease to only hold
reference to its given references and ignore label references
during garbage collection rooted from the lease.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Currently the objects which can retain content from labels
are limited. This limitation has required clients to work
around this and and in some cases add outside reference
counting (e.g. buildkit keeping content for snapshots).
Updated the logic to treat content and snapshot labels equally
and simplified the code in the process.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
The noop-loop does nothing.
The containerd doesn't have any snapshotter buckets at the beginning.
If user uses specific dir as rootfs to create container, and sets
`snapshotter` key to the container, like `overlayfs` by mistake,
the gc scheduler will try to scan the snapshotter and panic.
In order to avoid this case, remove the noop-loop here.
Signed-off-by: Wei Fu <fuweid89@gmail.com>
Allow content ingests to be cleaned up during gc.
Use a default expiration on content ingests or make
use of the lease expiration when provided.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Allow setting an expiration label to have the garbage
collector remove an item after the specified time.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Allows linking to multiple snapshots within the same snapshotter.
Adds support for using slash to separate content as well for consistency.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
Marks and sweeps unreferenced objects.
Add snapshot cleanup to metadata.
Add content garbage collection
Add dirty flags for snapshotters and content store which
are set on deletion and used during the next garbage collection.
Cleanup content store backend when content metadata is removed.
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
