kernel: build: Add container build

Add script to build kernel in a container.

Signed-off-by: Carlos Venegas <jos.c.venegas.munoz@intel.com>

tools/packaging/kata-deploy/local-build/dockerbuild/Dockerfile

@@ -37,15 +37,8 @@ RUN if [ ${IMG_USER} != "root" ]; then groupadd --gid=${GID} ${IMG_USER};fi
 RUN if [ ${IMG_USER} != "root" ]; then adduser ${IMG_USER} --uid=${UID} --gid=${GID};fi
 RUN sh -c "echo '${IMG_USER} ALL=NOPASSWD: ALL' >> /etc/sudoers"
 
-# kernel deps
-RUN apt install -y flex
-RUN apt install -y bison
-RUN apt install -y libelf-dev
-RUN apt install -y bc
-RUN apt install -y iptables
-RUN apt install -y build-essential
 RUN apt install -y git
-
+RUN apt install -y make
 
 # kata deps
 RUN apt install -y golang

tools/packaging/kata-deploy/local-build/kata-deploy-binaries.sh

@@ -21,7 +21,7 @@ readonly versions_yaml="${repo_root_dir}/versions.yaml"
 
 readonly clh_builder="${repo_root_dir}/tools/packaging/static-build/cloud-hypervisor/build-static-clh.sh"
 readonly firecracker_builder="${repo_root_dir}/tools/packaging/static-build/firecracker/build-static-firecracker.sh"
-readonly kernel_builder="${repo_root_dir}/tools/packaging/kernel/build-kernel.sh"
+readonly kernel_builder="${repo_root_dir}/tools/packaging/static-build/kernel/build.sh"
 readonly qemu_builder="${repo_root_dir}/tools/packaging/static-build/qemu/build-static-qemu.sh"
 readonly rootfs_builder="${repo_root_dir}/tools/packaging/guest-image/build_image.sh"
 
@@ -87,12 +87,8 @@ install_initrd() {
 
 #Install kernel asset
 install_kernel() {
-	info "build kernel"
-	export kernel_version=="$(yq r $versions_yaml assets.version)"
-	"${kernel_builder}" setup
-	"${kernel_builder}" build
-	info "install kernel"
-	DESTDIR="${destdir}" PREFIX="${prefix}" "${kernel_builder}" install
+	export kernel_version="$(yq r $versions_yaml assets.kernel.version)"
+	DESTDIR="${destdir}" PREFIX="${prefix}" "${kernel_builder}" "${kernel_version}"
 }
 
 #Install experimental kernel asset

tools/packaging/kernel/build-kernel.sh

@@ -28,7 +28,6 @@ download_kernel=false
 # The repository where kernel configuration lives
 readonly kernel_config_repo="github.com/${project_name}/kata-containers/tools/packaging"
 readonly patches_repo="github.com/${project_name}/kata-containers/tools/packaging"
-readonly patches_repo_dir="${GOPATH}/src/${patches_repo}"
 # Default path to search patches to apply to kernel
 readonly default_patches_dir="${script_dir}/patches"
 # Default path to search config for kata
@@ -497,6 +496,8 @@ main() {
 			kernel_version=$(get_from_kata_deps "assets.kernel.version")
 		fi
 	fi
+	#Remove extra 'v'
+	kernel_version="${kernel_version#v}"
 
 	if [ -z "${kernel_path}" ]; then
 		config_version=$(get_config_version)

tools/packaging/static-build/kernel/Dockerfile

@@ -0,0 +1,18 @@
+# Copyright (c) 2021 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+FROM ubuntu
+ENV DEBIAN_FRONTEND=noninteractive
+
+# kernel deps
+RUN apt update
+RUN apt install -y \
+	    bc \
+	    bison \
+	    build-essential \
+	    curl \
+	    flex \
+	    git \
+	    iptables \
+	    libelf-dev \

tools/packaging/static-build/kernel/build.sh

@@ -0,0 +1,38 @@
+#!/bin/bash
+#
+# Copyright (c) 2021 Intel Corporation
+#
+# SPDX-License-Identifier: Apache-2.0
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+readonly repo_root_dir="$(cd "${script_dir}/../../../.." && pwd)"
+readonly kernel_builder="${repo_root_dir}/tools/packaging/kernel/build-kernel.sh"
+
+
+kernel_version=${1}
+DESTDIR=${DESTDIR:-${PWD}}
+PREFIX=${PREFIX:-/opt/kata}
+container_image="kata-kernel-builder"
+
+sudo docker build -t "${container_image}" "${script_dir}"
+
+echo "build ${kernel_version}"
+sudo docker run --rm -i -v "${repo_root_dir}:${repo_root_dir}" \
+	-w "${PWD}" \
+	"${container_image}" \
+	bash -c "${kernel_builder} -v ${kernel_version} setup"
+
+sudo docker run --rm -i -v "${repo_root_dir}:${repo_root_dir}" \
+	-w "${PWD}" \
+	"${container_image}" \
+	bash -c "${kernel_builder} -v ${kernel_version} build"
+
+sudo docker run --rm -i -v "${repo_root_dir}:${repo_root_dir}" \
+	-w "${PWD}" \
+	--env DESTDIR="${DESTDIR}" --env PREFIX="${PREFIX}" \
+	"${container_image}" \
+	bash -c "${kernel_builder} -v ${kernel_version} install"