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| author | Bruce Ashfield <bruce.ashfield@gmail.com> | 2026-01-14 20:59:14 +0000 |
|---|---|---|
| committer | Bruce Ashfield <bruce.ashfield@gmail.com> | 2026-02-09 03:32:52 +0000 |
| commit | 929d1609efefd3189b650facaaeb3d2a13ffbe1d (patch) | |
| tree | fcbbf69ec29c7a45c3ed31ddb353c4927650f2fa /recipes-core/libxcrypt | |
| parent | 4fd9190b7f2f7260b90c7de1609944c96fcf6f64 (diff) | |
| download | meta-virtualization-929d1609efefd3189b650facaaeb3d2a13ffbe1d.tar.gz | |
image-oci: add layer caching for multi-layer OCI builds
Add layer caching to speed up multi-layer OCI image rebuilds. When
enabled, pre-installed package layers are cached to disk and restored
on subsequent builds, avoiding repeated package installation.
New variables:
- OCI_LAYER_CACHE: Enable/disable caching (default "1")
- OCI_LAYER_CACHE_DIR: Cache location (default ${TOPDIR}/oci-layer-cache/${MACHINE})
Cache key is computed from:
- Layer name and type
- Sorted package list
- Package versions from PKGDATA_DIR
- MACHINE and TUNE_PKGARCH
Cache automatically invalidates when:
- Package versions change
- Layer definition changes
- Architecture changes
Benefits:
- First build: ~10-30s per layer (cache miss, packages installed)
- Subsequent builds: ~1s per layer (cache hit, files copied)
- Shared across recipes with identical layer definitions
Build log shows cache status:
NOTE: OCI Cache HIT: Layer 'base' (be88c180f651416b)
NOTE: OCI: Pre-installed packages for 3 layers (cache: 3 hits, 0 misses)
Also adds comprehensive pytest suite for multi-layer OCI functionality
including tests for 1/2/3 layer modes and cache behavior.
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Diffstat (limited to 'recipes-core/libxcrypt')
0 files changed, 0 insertions, 0 deletions