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https://github.com/kata-containers/kata-containers.git
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72f7e9e300
Use `multistrap` for building Ubuntu rootfs. Adds support for building for foreign architectures using the `ARCH` environment variable. In the process, the Ubuntu rootfs workflow is vastly simplified. Signed-off-by: Jakob Naucke <jakob.naucke@ibm.com>
30 lines
823 B
Bash
30 lines
823 B
Bash
# Copyright (c) 2018 Yash Jain, 2022 IBM Corp.
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#
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# SPDX-License-Identifier: Apache-2.0
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build_rootfs() {
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local rootfs_dir=$1
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local multistrap_conf=multistrap.conf
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# For simplicity's sake, use multistrap for foreign and native bootstraps.
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cat > "$multistrap_conf" << EOF
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[General]
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cleanup=true
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aptsources=Ubuntu
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bootstrap=Ubuntu
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[Ubuntu]
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source=$REPO_URL
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keyring=ubuntu-keyring
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suite=focal
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packages=$PACKAGES $EXTRA_PKGS
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EOF
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multistrap -a "$DEB_ARCH" -d "$rootfs_dir" -f "$multistrap_conf"
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rm -rf "$rootfs_dir/var/run"
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ln -s /run "$rootfs_dir/var/run"
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cp --remove-destination /etc/resolv.conf "$rootfs_dir/etc"
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# Reduce image size and memory footprint by removing unnecessary files and directories.
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rm -rf $rootfs_dir/usr/share/{bash-completion,bug,doc,info,lintian,locale,man,menu,misc,pixmaps,terminfo,zsh}
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}
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