buildx/docs/reference/buildx_prune.md

buildx prune

docker buildx prune

Remove build cache

Options

Name	Type	Default	Description
-a, --all	bool		Include internal/frontend images
--builder	string		Override the configured builder instance
-D, --debug	bool		Enable debug logging
--filter	filter		Provide filter values (e.g., until=24h)
-f, --force	bool		Do not prompt for confirmation
--max-used-space	bytes	0	Maximum amount of disk space allowed to keep for cache
--min-free-space	bytes	0	Target amount of free disk space after pruning
--reserved-space	bytes	0	Amount of disk space always allowed to keep for cache
--verbose	bool		Provide a more verbose output

Description

Clears the build cache of the selected builder.

You can finely control what cache data is kept using:

• The --filter=until=<duration> flag to keep images that have been used in the last <duration> time.

  <duration> is a duration string, e.g. 24h or 2h30m, with allowable units of (h)ours, (m)inutes and (s)econds.

• The --keep-storage=<size> flag to keep <size> bytes of data in the cache.

  <size> is a human-readable memory string, e.g. 128mb, 2gb, etc. Units are case-insensitive.

• The --all flag to allow clearing internal helper images and frontend images set using the #syntax= directive or the BUILDKIT_SYNTAX build argument.

Examples

Override the configured builder instance (--builder)

Same as buildx --builder.