[WIP] Initial work on pre-pulling containers at buildtime.

buildroot-external/Config.in

@@ -102,6 +102,7 @@ endmenu
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/openfec/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/openfst/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ovos-bus-server/Config.in"
+	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ovos-containers/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ovos-dashboard/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ovos-shell/Config.in"
 	source "$BR2_EXTERNAL_OPENVOICEOS_PATH/package/ovos-splash/Config.in"

buildroot-external/configs/rpi4_64_defconfig

@@ -141,9 +141,9 @@ BR2_PACKAGE_PYTHON_PODMAN_COMPOSE=y
 BR2_PACKAGE_LILV=y
 BR2_PACKAGE_OPUS=y
 BR2_PACKAGE_PORTAUDIO=y
-BR2_PACKAGE_SPEEXDSP=y
 BR2_PACKAGE_SBC=y
 BR2_PACKAGE_SBC_TOOLS=y
+BR2_PACKAGE_SPEEXDSP=y
 BR2_PACKAGE_WEBRTC_AUDIO_PROCESSING=y
 BR2_PACKAGE_LIBARCHIVE=y
 BR2_PACKAGE_LIBDEFLATE=y
@@ -172,7 +172,6 @@ BR2_PACKAGE_LIBV4L_UTILS=y
 BR2_PACKAGE_JSON_GLIB=y
 BR2_PACKAGE_LIBCAMERA=y
 BR2_PACKAGE_LIBCAMERA_V4L2=y
-BR2_PACKAGE_LIBCAMERA_PIPELINE_IPU3=y
 BR2_PACKAGE_LIBCAMERA_PIPELINE_SIMPLE=y
 BR2_PACKAGE_LIBCAMERA_PIPELINE_UVCVIDEO=y
 BR2_PACKAGE_LIBCAMERA_PIPELINE_VIMC=y

buildroot-external/package/ovos-containers/Config.in

@@ -0,0 +1,21 @@
+menuconfig BR2_PACKAGE_OVOS_CONTAINERS
+	bool "Pre-install OVOS containers"
+	help
+	  This is the system layer that prepares and
+	  pre-install the required OVOS containers.
+
+	  https://github.com/OpenVoiceOS/ovos-docker
+
+if BR2_PACKAGE_OVOS_CONTAINERS
+
+config BR2_PACKAGE_OVOS_CONTAINERS_ARCH
+	string "Container Arch"
+	help
+	  Architecture for which we should be pull.
+
+config BR2_PACKAGE_OVOS_CONTAINERS_IMAGES
+	string "Images"
+	help
+	  Space separated list of images to pull.
+
+endif

buildroot-external/package/ovos-containers/fetch-container-image.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# Original script from Home Assistant
+
+set -e
+set -u
+set -o pipefail
+
+arch=$1
+image=$2
+dl_dir=$3
+dst_dir=$4
+
+image_name="docker.io/smartgic/${image}"
+full_image_name="${image_name}:alpha"
+image_digest=$(skopeo inspect --retry-times=5 "docker://${full_image_name}" | jq -r '.Digest')
+
+image_file_name="${full_image_name//[:\/]/_}@${image_digest//[:\/]/_}"
+image_file_path="${dl_dir}/${image_file_name}.tar"
+dst_image_file_path="${dst_dir}/${image_file_name}.tar"
+
+(
+	# Use file locking to avoid race condition
+	flock --verbose 3
+	if [ ! -f "${image_file_path}" ]
+	then
+		echo "Fetching image: ${full_image_name} (digest ${image_digest})"
+		skopeo copy "docker://${image_name}@${image_digest}" "docker-archive:${image_file_path}:${full_image_name}"
+	else
+		echo "Skipping download of existing image: ${full_image_name} (digest ${image_digest})"
+	fi
+
+	cp "${image_file_path}" "${dst_image_file_path}"
+) 3>"${image_file_path}.lock"

buildroot-external/package/ovos-containers/ovos-containers.mk

@@ -0,0 +1,24 @@
+################################################################################
+#
+# OVOS Container images
+#
+################################################################################
+
+OVOS_CONTAINERS_VERSION = 1.0.0
+OVOS_CONTAINERS_LICENSE = Apache License 2.0
+OVOS_CONTAINERS_LICENSE_FILES = $(BR2_EXTERNAL_OPENVOICEOS_PATH)/../LICENSE
+OVOS_CONTAINERS_SITE = $(BR2_EXTERNAL_OPENVOICEOS_PATH)/package/ovos-containers
+OVOS_CONTAINERS_SITE_METHOD = local
+
+OVOS_CONTAINERS_IMAGES = $(call qstrip,$(BR2_PACKAGE_OVOS_CONTAINERS))
+
+define OVOS_CONTAINERS_BUILD_CMDS
+	$(Q)mkdir -p $(@D)/images
+	$(Q)mkdir -p $(OVOS_CONTAINERS_DL_DIR)
+	$(foreach image,$(OVOS_CONTAINERS_IMAGES),\
+		$(BR2_EXTERNAL_OPENVOICEOS_PATH)/package/ovos-containers/fetch-container-image.sh \
+			$(BR2_PACKAGE_OVOS_CONTAINERS_ARCH) $(image) "$(OVOS_CONTAINERS_DL_DIR)" "$(@D)/images"
+	)
+endef
+
+$(eval $(generic-package))