vcontainer: add BBMASK for parse savings and suppress layer warnings

2026-05-10T20:15:50+00:00

The initial vcontainer distro had no BBMASK at all, making it effectively poky with fewer DISTRO_FEATURES. Every multiconfig parsed the entire recipe universe even though container image builds only need a small subset. With 4+ multiconfigs, the parse overhead is significant. Add vcontainer-bbmask.inc as a lighter alternative to vruntime's aggressive BBMASK. It masks the same categories irrelevant to any container/VM build (graphics, multimedia, desktop, virtualization platforms, orchestration tools, meta-python, meta-filesystems, meta-webserver) but keeps the OCI tooling that vruntime blocks: umoci, container-registry, image recipes, sloci, oci-image-tools. Masking entire layers (meta-python, meta-filesystems, meta-webserver) produces BBFILE_PATTERN warnings because the layers are registered in bblayers.conf (shared with the main build) but have zero recipes after masking. BitBake provides BBFILE_PATTERN_IGNORE_EMPTY_ to suppress this, but checks it on self.data (the base datastore), not per-multiconfig datastores. Setting it in the distro config has no effect. Move the suppression to meta-virt-host.conf which is included by the main build's local.conf and therefore visible to the base datastore. Signed-off-by: Bruce Ashfield

vcontainer: add OCI builder distro with shared base

2026-05-10T13:57:50+00:00

The oci-multiarch.bbclass was dead code because vruntime's BBMASK blocks the OCI tooling (umoci, skopeo) needed to build container images. We could not simply use the vruntime multiconfigs for OCI image builds because the aggressive recipe masking that keeps vruntime rootfs minimal also removes the packages needed for container image creation. Rather than maintaining two independent distro configs with duplicated DISTRO_FEATURES, extract the common configuration into a shared base fragment and create a new distro that omits the BBMASK. Changes: - Extract vruntime-base.inc from vruntime.conf with shared settings: stripped DISTRO_FEATURES, opted-out features, native class overrides - Simplify vruntime.conf to require vruntime-base.inc, keeping only VM-specific settings (BBMASK, busybox init, ptest disable) - Add vcontainer.conf: requires the same shared base but without BBMASK, giving OCI tooling full access to the package set - Add container-aarch64 and container-x86-64 multiconfigs using the vcontainer distro with separate TMPDIRs - Add container multiconfigs to BBMULTICONFIG in meta-virt-host.conf - Remove unused container.conf placeholder from 2022 IMAGE_FSTYPES is intentionally NOT set in vcontainer.conf because the 'oci' type requires image-oci.bbclass which only container image recipes inherit. Setting it distro-wide breaks non-container images parsed under this distro (e.g., core-image-multilib-example from meta-skeleton). Signed-off-by: Bruce Ashfield

linux/meta-virtualization.git/conf/distro/vcontainer.conf, branch master

vcontainer: add BBMASK for parse savings and suppress layer warnings

vcontainer: add OCI builder distro with shared base