crictl can import images but slow

makefile

@@ -6,10 +6,16 @@ TAG ?= dev
 PACKAGES_DIR := packages
 OUT_DIR      := out
 
-BUSYBOX_TAR := $(PACKAGES_DIR)/busybox-$(BUSYBOX_VERSION).tar.gz
-ALPINE_TAR  := $(PACKAGES_DIR)/alpine-minirootfs-$(ALPINE_VER)-$(ALPINE_ARCH).tar.gz
-NXP_TAR     := $(PACKAGES_DIR)/$(NXP_VERSION).tar.gz
-CRIO_TAR    := $(PACKAGES_DIR)/$(CRIO_VERSION).tar.gz
+BUSYBOX_TAR  := $(PACKAGES_DIR)/busybox-$(BUSYBOX_VERSION).tar.gz
+ALPINE_TAR   := $(PACKAGES_DIR)/alpine-minirootfs-$(ALPINE_VER)-$(ALPINE_ARCH).tar.gz
+NXP_TAR      := $(PACKAGES_DIR)/$(NXP_VERSION).tar.gz
+CRIO_TAR     := $(PACKAGES_DIR)/$(CRIO_VERSION).tar.gz
+REGISTRY_TAR := $(PACKAGES_DIR)/registry-$(REGISTRY_VERSION).tar.gz
+
+# Kubernetes components
+KUBELET_BIN := $(PACKAGES_DIR)/kubernetes/kubelet
+KUBEADM_BIN := $(PACKAGES_DIR)/kubernetes/kubeadm
+KUBECTL_BIN := $(PACKAGES_DIR)/kubernetes/kubectl
 
 BOARD_ITB     := $(OUT_DIR)/board.itb
 INITRAMFS     := $(OUT_DIR)/initramfs.cpio.gz
@@ -62,6 +68,10 @@ RELEASE_DEPS := \
 	$(BOARD_ITB) \
 	$(ALPINE_TAR) \
 	$(CRIO_TAR) \
+	$(KUBELET_BIN) \
+	$(KUBEADM_BIN) \
+	$(KUBECTL_BIN) \
+	$(REGISTRY_TAR) \
 	docker/alpine.Dockerfile \
 	$(ALPINE_SRCS) \
 	build.env \
@@ -71,11 +81,23 @@ RELEASE_DEPS := \
 
 $(PACKAGES_DIR):
 	mkdir -p $@
+	mkdir -p $@/kubernetes
 
 $(OUT_DIR):
 	mkdir -p $@
 
 # ---- Package downloads -------------------------------------------------------
+$(KUBELET_BIN): | $(PACKAGES_DIR)
+	curl -L -o $@ "https://dl.k8s.io/$(KUBE_VERSION)/bin/linux/$(ARCH)/kubelet"
+
+$(KUBEADM_BIN): | $(PACKAGES_DIR)
+	curl -L -o $@ "https://dl.k8s.io/$(KUBE_VERSION)/bin/linux/$(ARCH)/kubeadm"
+
+$(KUBECTL_BIN): | $(PACKAGES_DIR)
+	curl -L -o $@ "https://dl.k8s.io/$(KUBE_VERSION)/bin/linux/$(ARCH)/kubectl"
+
+$(KUBEADM_BIN): | $(PACKAGES_DIR)
+	curl -L -o $@ "https://dl.k8s.io/$(KUBE_VERSION)/bin/linux/$(ARCH)/kubeadm"
 
 $(BUSYBOX_TAR): | $(PACKAGES_DIR)
 	curl -L -o $@ "https://github.com/mirror/busybox/archive/refs/tags/$(BUSYBOX_VERSION).tar.gz"
@@ -83,6 +105,9 @@ $(BUSYBOX_TAR): | $(PACKAGES_DIR)
 $(ALPINE_TAR): | $(PACKAGES_DIR)
 	curl -L -o $@ "https://dl-cdn.alpinelinux.org/alpine/v$(ALPINE_SERIES)/releases/$(ALPINE_ARCH)/alpine-minirootfs-$(ALPINE_VER)-$(ALPINE_ARCH).tar.gz"
 
+$(REGISTRY_TAR): | $(PACKAGES_DIR)
+	curl -L -o $@ "https://github.com/distribution/distribution/releases/download/v$(REGISTRY_VERSION)/registry_$(REGISTRY_VERSION)_linux_$(ARCH).tar.gz"
+
 $(NXP_TAR): | $(PACKAGES_DIR)
 	curl -L -o $@ "https://github.com/nxp-qoriq/linux/archive/refs/tags/$(NXP_VERSION).tar.gz"
 
@@ -139,16 +164,22 @@ $(RELEASE_IMAGE): $(RELEASE_DEPS) | $(OUT_DIR)
 		--build-arg ALPINE_ARCH=$(ALPINE_ARCH) \
 		--build-arg ALPINE_VER=$(ALPINE_VER) \
 		--build-arg CRIO_VERSION=$(CRIO_VERSION) \
+		--build-arg REGISTRY_VERSION=$(REGISTRY_VERSION) \
 		--build-arg DEVICE_TREE_TARGET=$(DEVICE_TREE_TARGET) \
 		-t $(DOCKER_IMAGE_ROOT)/buildenv-alpine:$(TAG) .
 
 	@cid=$$(docker create \
 		--privileged \
+		-v /cache/k8s-images:/var/cache/k8s-images \
 		-v /cache/apk:/var/cache/apk \
 		--device=/dev/loop0:/dev/loop0 \
 		-e ROOTFS=/out/rootfs \
 		-e RELEASE_IMAGE=$(RELEASE_IMAGE) \
 		-e DEVICE_TREE_TARGET=$(DEVICE_TREE_TARGET) \
+		-e KUBE_IMG_CACHE=/var/cache/k8s-images \
+		-e KUBE_VERSION=$(KUBE_VERSION) \
+		-e ALPINE_HOSTNAME=$(ALPINE_HOSTNAME) \
+		-e ARCH=$(ARCH) \
 		$(DOCKER_IMAGE_ROOT)/buildenv-alpine:$(TAG) \
 		bash -lc '/build-rootfs.sh'); \
 	docker start -a $$cid; \
@@ -175,6 +206,9 @@ clean:
 		$(RELEASE_IMAGE)
 
 distclean: clean
-	rm -rf $(OUT_DIR) $(PACKAGES_DIR)
+	rm -rf $(OUT_DIR)
+
+pkgclean:
+	rm -rf $(PACKAGES_DIR)
 
 .PHONY: release kernel initramfs itb build-base clean distclean