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Add pytest tests to verify CONTAINER_SERVICE_FILE varflag support:
TestCustomServiceFileSupport (unit tests, no build required):
- test_bbclass_has_service_file_support
- test_bundle_class_has_service_file_support
- test_service_file_map_syntax
- test_install_custom_service_function
TestCustomServiceFileBoot (boot tests, require built image):
- test_systemd_services_directory_exists
- test_container_services_present
- test_container_service_enabled
- test_custom_service_content
- test_podman_quadlet_directory
Documentation updates:
- docs/container-bundling.md: Add "Custom Service Files" section with
variable format, usage examples for both BUNDLED_CONTAINERS and
container-bundle packages, and example .service/.container files
- tests/README.md: Add test class entries to structure diagram and
"What the Tests Check" table
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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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>
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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>
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Update container-bundling.md with:
- New "OCI Multi-Layer Images" section explaining:
- Single vs multi-layer image differences
- OCI_BASE_IMAGE usage (recipe name or path)
- OCI_IMAGE_CMD vs OCI_IMAGE_ENTRYPOINT behavior
- When to use CMD (base images) vs ENTRYPOINT (wrapper tools)
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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Add comprehensive documentation for the container cross-install system:
- Choosing between BUNDLED_CONTAINERS and container-bundle packages
- Decision guide table for selecting the right approach
- Component relationships (app recipe -> container image -> bundle)
- BUNDLED_CONTAINERS format and examples
- container-bundle.bbclass usage
- Container autostart configuration
- vdkr/vpdmn virtual container runtime usage
- Architecture overview and how it works
- Testing instructions
This provides a single reference for users wanting to bundle containers
into Yocto images at build time.
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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This support is disabled by default and exposed via PACKAGECONFIG.
Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
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-Uprev to 1.10
-removed vswitch_test.sh
-added openvswitch.txt.
Signed-off-by: Paul Barrette <paul.barrette@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Instructions for creating a simple bridge that will take
over eth0. You cannot be executing out of an nfs-mounted
filesystem while setting up the bridge.
Signed-off-by: Joe Slater <jslater@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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As the number of meta-virtualization users grows, the need to document
various parts of the layer grows as well. Rather than rely only on
wiki and online docs, we'll create a layer-local holding tank for relevant
bits of documentation.
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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