container-registry: add local OCI registry infrastructure

Add container registry support for Yocto container workflows:
- container-registry.bbclass with helper functions
- container-registry-index.bb generates helper script with baked paths
- docker-registry-config.bb for Docker daemon on targets
- container-oci-registry-config.bb for Podman/Skopeo/Buildah targets
- IMAGE_FEATURES container-registry for easy target configuration

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

1 files changed, 6 insertions, 0 deletions

diff --git a/conf/layer.conf b/conf/layer.conf
index 5ec45ee0..85694344 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -50,6 +50,12 @@ CONTAINER_PROFILE ?= "default"
 # virt profile can be: kvm, xen, runx
 VIRTUALIZATION_PROFILE ?= "default"
 
+# Custom IMAGE_FEATURES for container images
+# container-registry: Install registry config based on container engine
+#   Requires: CONTAINER_REGISTRY_URL (for OCI) or DOCKER_REGISTRY_INSECURE (for Docker)
+#   Usage: IMAGE_FEATURES:append = " container-registry"
+IMAGE_FEATURES[validitems] += "container-registry"
+
 # Sanity check for meta-virtualization layer.
 # Setting SKIP_META_VIRT_SANITY_CHECK to "1" would skip the bbappend files check.
 INHERIT += "sanity-meta-virt"