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d7bb4b5512
1. Implemented a rust module for operating cgroups through systemd with the help of zbus (src/agent/rustjail/src/cgroups/systemd). 2. Add support for optional cgroup configuration through fs and systemd at agent (src/agent/rustjail/src/container.rs). 3. Described the usage and supported properties of the agent systemd cgroup (docs/design/agent-systemd-cgroup.md). Fixes: #4336 Signed-off-by: Yuan-Zhuo <yuanzhuo0118@outlook.com>
38 lines
1.0 KiB
Bash
38 lines
1.0 KiB
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_dbus() {
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local rootfs_dir=$1
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ln -sf /lib/systemd/system/dbus.service $rootfs_dir/etc/systemd/system/dbus.service
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ln -sf /lib/systemd/system/dbus.socket $rootfs_dir/etc/systemd/system/dbus.socket
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}
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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 $EXTRA_PKGS
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EOF
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if ! multistrap -a "$DEB_ARCH" -d "$rootfs_dir" -f "$multistrap_conf"; then
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build_dbus $rootfs_dir
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fi
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rm -rf "$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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