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| author | Bruce Ashfield <bruce.ashfield@gmail.com> | 2026-01-14 20:58:34 +0000 |
|---|---|---|
| committer | Bruce Ashfield <bruce.ashfield@gmail.com> | 2026-02-09 03:32:52 +0000 |
| commit | 4fd9190b7f2f7260b90c7de1609944c96fcf6f64 (patch) | |
| tree | 1f7268a586df34642a9b0562a9abaa3c1b97f35c /scripts | |
| parent | 4ddc9e489307a31b25600b9073edb09110740fb8 (diff) | |
| download | meta-virtualization-4fd9190b7f2f7260b90c7de1609944c96fcf6f64.tar.gz | |
image-oci: add multi-layer OCI image support with OCI_LAYERS
Add support for creating multi-layer OCI images with explicit layer
definitions via OCI_LAYERS variable. This enables fine-grained control
over container layer composition.
New variables:
- OCI_LAYER_MODE: Set to "multi" for explicit layer definitions
- OCI_LAYERS: Define layers as "name:type:content" entries
- packages: Install specific packages in a layer
- directories: Copy directories from IMAGE_ROOTFS
- files: Copy specific files from IMAGE_ROOTFS
Package installation uses Yocto's package manager classes (RpmPM,
OpkgPM) for consistency with do_rootfs, rather than calling dnf/opkg
directly.
Example usage:
OCI_LAYER_MODE = "multi"
OCI_LAYERS = "\
base:packages:base-files+base-passwd+netbase \
shell:packages:busybox \
app:packages:curl \
"
This creates a 3-layer OCI image with discrete base, shell, and app
layers that can be shared and cached independently.
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
Diffstat (limited to 'scripts')
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