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Add example recipes demonstrating multi-layer OCI image building:
alpine-oci-base_3.19.bb:
- Fetches Alpine 3.19 from Docker Hub using container-bundle
- Uses CONTAINER_BUNDLE_DEPLOY for use as OCI_BASE_IMAGE source
- Pinned digest for reproducible builds
app-container-alpine.bb:
- Demonstrates external base image usage
- Layers Yocto packages (busybox) on top of Alpine
- Uses OCI_IMAGE_CMD for Docker-like behavior
app-container-layered.bb:
- Demonstrates local base image usage
- Layers Yocto packages on top of container-base
- Uses OCI_IMAGE_CMD for Docker-like behavior
Both app containers produce 2-layer OCI images where the base layer
is shared, reducing storage and transfer costs.
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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