linux/meta-virtualization.git/recipes-containers/vcontainer/files, branch container-cross-install

vdkr-init: improve Docker daemon startup logging and error handling

2026-01-24T20:53:46+00:00

Improve debugging capabilities when Docker daemon fails to start: - Log dockerd output to /var/log/docker.log instead of /dev/null - Capture docker info exit code and output for diagnostics - Show docker info error on every 10th iteration while waiting - Include last docker info output and docker.log tail on failure - Extend sleep on failure from 2s to 5s for log review Signed-off-by: Bruce Ashfield

vcontainer: add host-side idle timeout with QMP shutdown

2026-01-24T20:53:26+00:00

Implement reliable idle timeout for vmemres daemon mode using host-side monitoring with QMP-based shutdown, and container-aware idle detection via virtio-9p shared file. Host-side changes (vrunner.sh): - Add -no-reboot flag to QEMU for clean exit semantics - Spawn background watchdog when daemon starts - Watchdog monitors activity file timestamp - Check interval scales to idle timeout (timeout/5, clamped 10-60s) - Read container status from shared file (guest writes via virtio-9p) - Only shutdown if no containers are running - Send QMP "quit" command for graceful shutdown - Watchdog auto-exits if QEMU dies (no zombie processes) - Touch activity file in daemon_send() for user activity tracking Config changes (vcontainer-common.sh): - Add idle-timeout to build_runner_args() so it's always passed Guest-side changes (vcontainer-init-common.sh): - Add watchdog that writes container status to /mnt/share/.containers_running - Host reads this file instead of socket commands (avoids output corruption) - Close inherited virtio-serial fd 3 in watchdog subshell to prevent leaks - Guest-side shutdown logic preserved but disabled (QMP more reliable) - Handle Yocto read-only-rootfs volatile directories (/var/volatile) The shared file approach avoids sending container check commands through the daemon socket, which previously caused output corruption on the single-stream virtio-serial channel. The idle timeout is configurable via: vdkr vconfig idle-timeout Default: 1800 seconds (30 minutes) Signed-off-by: Bruce Ashfield

vcontainer: add tiny initramfs image infrastructure

2026-01-24T03:29:11+00:00

Add proper Yocto image recipes for the tiny initramfs used by vdkr/vpdmn in the switch_root boot flow: - vcontainer-tiny-initramfs-image.inc: Shared image configuration - vcontainer-preinit_1.0.bb: Preinit script package (shared) - vdkr-tiny-initramfs-image.bb: Tiny initramfs for vdkr - vpdmn-tiny-initramfs-image.bb: Tiny initramfs for vpdmn The tiny initramfs contains only busybox and a preinit script that: 1. Mounts devtmpfs, proc, sysfs 2. Mounts the squashfs rootfs.img from /dev/vda 3. Creates tmpfs overlay for writes 4. Performs switch_root to the real rootfs This replaces ad-hoc file extraction with proper image-based builds, improving reproducibility and maintainability. Signed-off-by: Bruce Ashfield

vcontainer: add multi-arch OCI support

2026-01-21T23:00:26+00:00

Add functions to detect and handle multi-architecture OCI Image Index format with automatic platform selection during import. Also add oci-multiarch.bbclass for build-time multi-arch OCI creation. Runtime support (vcontainer-common.sh): - is_oci_image_index() - detect multi-arch OCI images - get_oci_platforms() - list available platforms - select_platform_manifest() - select manifest for target architecture - extract_platform_oci() - extract single platform to new OCI dir - normalize_arch_to_oci/from_oci() - architecture name mapping - Update vimport to auto-select platform from multi-arch images Build-time support (oci-multiarch.bbclass): - Create OCI Image Index from multiconfig builds - Collect images from vruntime-aarch64, vruntime-x86-64 - Combine blobs and create unified manifest list Signed-off-by: Bruce Ashfield

vcontainer: add virtio-9p fast path for batch imports

2026-01-21T23:00:26+00:00

Add virtio-9p filesystem support for faster storage output during batch container imports, replacing slow base64-over-console method. - Add --timeout option for configurable import timeouts - Mount virtio-9p share in batch-import mode - Parse _9p=1 kernel parameter for 9p availability - Write storage.tar directly to shared filesystem - Reduces import time from ~600s to ~11s for large containers Signed-off-by: Bruce Ashfield

vcontainer: add vshell command for VM debug access

2026-01-21T23:00:26+00:00

Add vshell command to vdkr/vpdmn for interactive shell access to the QEMU VM where Docker/Podman runs. This is useful for debugging container issues directly inside the virtual environment. Usage: vdkr vmemres start vdkr vshell # Now inside VM, can run docker commands directly docker images docker inspect exit The vshell command requires the memory-resident daemon to be running (vmemres start). It opens an interactive shell via the daemon's --daemon-interactive mode. Signed-off-by: Bruce Ashfield

vdkr: add registry configuration and pull fallback

2026-01-21T23:00:26+00:00

Add registry support to vdkr: - vconfig registry command for persistent config - --registry flag for one-off usage - Registry-first, Docker Hub fallback for pulls - Baked-in registry config via CONTAINER_REGISTRY_URL - Image commands (inspect, history, rmi, images) work without transform Signed-off-by: Bruce Ashfield

vcontainer: fix ps -q to suppress port forward display

2026-01-21T23:00:26+00:00

When using `ps -q` or `ps --quiet`, only container IDs should be output. The port forward registry display was being included, which broke cleanup code that expected just container IDs. Signed-off-by: Bruce Ashfield

vrunner: update static port forwarding for bridge networking

2026-01-21T23:00:26+00:00

Update the static port forwarding (used at QEMU startup) to match the dynamic QMP port forwarding change. With bridge networking: - QEMU forwards host:port -> VM:port - Docker's iptables handles VM:port -> container:port Previously the static port forward went directly to the container port (host:8080 -> VM:80), which doesn't work with bridge networking where Docker needs to handle the final hop. Signed-off-by: Bruce Ashfield

vcontainer: update CLI for bridge networking

2026-01-21T23:00:26+00:00

Update the CLI wrapper to work with Docker bridge networking: - qmp_add_hostfwd(): Change QEMU port forward from host_port->guest_port to host_port->host_port. With bridge networking, Docker's iptables handles the final hop (VM:host_port -> container:guest_port). - Default network mode: Remove --network=host default. Docker's bridge is now the default, giving each container its own IP. Users can still explicitly use --network=host for legacy behavior. - Update help text to document the new bridge networking behavior. Port forwarding flow is now: Host:8080 -> QEMU -> VM:8080 -> Docker iptables -> Container:80 Signed-off-by: Bruce Ashfield