container-bundle: add package-based container bundling support

This class creates installable packages that bundle pre-processed
container images. When installed via IMAGE_INSTALL, containers are
automatically merged into the target image's container storage.

Component relationships for bundling a local container:

  1. Application Recipe (builds the software)
     recipes-demo/myapp/myapp_1.0.bb
     - Compiles application binaries
     - Creates installable package (myapp)

  2. Container Image Recipe (creates OCI image containing the app)
     recipes-demo/images/myapp-container.bb
     - inherit image image-oci
     - IMAGE_INSTALL = "myapp"
     - Produces: ${DEPLOY_DIR_IMAGE}/myapp-container-latest-oci/

  3. Bundle Recipe (packages container images for deployment)
     recipes-demo/bundles/my-bundle_1.0.bb
     - inherit container-bundle
     - CONTAINER_BUNDLES = "myapp-container:autostart"
     - Creates installable package with OCI data

Flow: application recipe -> container image recipe -> bundle recipe
      -> IMAGE_INSTALL in host image -> container deployed on target

Usage:
    inherit container-bundle
    CONTAINER_BUNDLES = "myapp-container:autostart redis-container"

CONTAINER_BUNDLES format: source[:autostart-policy]
  - source: Container IMAGE recipe name or remote registry URL
  - autostart-policy: Optional (autostart, always, unless-stopped, on-failure)

Features:
- Auto-generates dependencies on container image recipes (do_image_complete)
- Supports remote containers via skopeo (requires CONTAINER_DIGESTS)
- Runtime auto-detected from CONTAINER_PROFILE (docker/podman)
- Produces OCI directories and metadata for container-cross-install

Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/recipes-demo/images/autostart-test-container.bb b/recipes-demo/images/autostart-test-container.bb
new file mode 100644
index 00000000..73a29a49
--- /dev/null
+++ b/recipes-demo/images/autostart-test-container.bb
@@ -0,0 +1,24 @@
+SUMMARY = "Autostart test container"
+DESCRIPTION = "A container for testing autostart functionality. \
+Runs a simple service that logs timestamps continuously."
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
+
+# Inherit from container-app-base for standard container setup
+require recipes-extended/images/container-app-base.bb
+
+# The test service that runs continuously
+CONTAINER_APP = "autostart-test"
+CONTAINER_APP_CMD = "/usr/bin/autostart-test"
+
+# To test autostart, add to local.conf:
+#   BUNDLED_CONTAINERS = "autostart-test-container-latest-oci:docker:autostart"
+#
+# Then verify on target:
+#   docker ps                    # Should show container running
+#   docker logs autostart-test-container  # Should show timestamp logs
+#
+# For Podman:
+#   BUNDLED_CONTAINERS = "autostart-test-container-latest-oci:podman:autostart"
+#   podman ps
+#   podman logs autostart-test-container