vcontainer: add vpdmn Podman support

Add vpdmn - Podman CLI wrapper for cross-architecture container operations:

Scripts:
- vpdmn.sh: Podman CLI entry point (vpdmn-x86_64, vpdmn-aarch64)
- vpdmn-init.sh: Podman init script for QEMU guest

Recipes:
- vpdmn-native: Installs vpdmn CLI wrappers
- vpdmn-rootfs-image: Builds Podman rootfs with crun, netavark, skopeo
- vpdmn-initramfs-create: Creates bootable initramfs blob

The vpdmn CLI provides Podman-compatible commands executed inside a
QEMU-emulated environment. Unlike vdkr, Podman is daemonless which
simplifies the guest init process.

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

2 files changed, 52 insertions, 0 deletions

diff --git a/recipes-containers/vcontainer/files/blobs/vpdmn/aarch64/README b/recipes-containers/vcontainer/files/blobs/vpdmn/aarch64/README
new file mode 100644
index 00000000..a4197779
--- /dev/null
+++ b/recipes-containers/vcontainer/files/blobs/vpdmn/aarch64/README
@@ -0,0 +1,26 @@
+vpdmn aarch64 Blobs
+====================
+
+This directory should contain the boot blobs for vpdmn aarch64:
+
+Required files:
+  - Image              : Linux kernel for aarch64
+  - initramfs.cpio.gz  : Tiny initramfs for switch_root
+  - rootfs.img         : Ext4 root filesystem with Podman tools
+
+Build instructions:
+  1. Set MACHINE for aarch64:
+     MACHINE=qemuarm64
+
+  2. Build the blobs:
+     bitbake vpdmn-initramfs-create
+
+  3. Copy from deploy directory:
+     cp tmp/deploy/images/qemuarm64/vpdmn/aarch64/Image .
+     cp tmp/deploy/images/qemuarm64/vpdmn/aarch64/initramfs.cpio.gz .
+     cp tmp/deploy/images/qemuarm64/vpdmn/aarch64/rootfs.img .
+
+Once these files are present, vpdmn-native will automatically include them.
+
+Alternatively, set VPDMN_USE_DEPLOY = "1" in local.conf to use blobs
+directly from DEPLOY_DIR without copying to the layer.
diff --git a/recipes-containers/vcontainer/files/blobs/vpdmn/x86_64/README b/recipes-containers/vcontainer/files/blobs/vpdmn/x86_64/README
new file mode 100644
index 00000000..30ddb445
--- /dev/null
+++ b/recipes-containers/vcontainer/files/blobs/vpdmn/x86_64/README
@@ -0,0 +1,26 @@
+vpdmn x86_64 Blobs
+===================
+
+This directory should contain the boot blobs for vpdmn x86_64:
+
+Required files:
+  - bzImage            : Linux kernel for x86_64
+  - initramfs.cpio.gz  : Tiny initramfs for switch_root
+  - rootfs.img         : Ext4 root filesystem with Podman tools
+
+Build instructions:
+  1. Set MACHINE for x86_64:
+     MACHINE=qemux86-64
+
+  2. Build the blobs:
+     bitbake vpdmn-initramfs-create
+
+  3. Copy from deploy directory:
+     cp tmp/deploy/images/qemux86-64/vpdmn/x86_64/bzImage .
+     cp tmp/deploy/images/qemux86-64/vpdmn/x86_64/initramfs.cpio.gz .
+     cp tmp/deploy/images/qemux86-64/vpdmn/x86_64/rootfs.img .
+
+Once these files are present, vpdmn-native will automatically include them.
+
+Alternatively, set VPDMN_USE_DEPLOY = "1" in local.conf to use blobs
+directly from DEPLOY_DIR without copying to the layer.