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Bonding

A Minimalism container implementation in C++

Build from source

This project is built using xmake.

This is currently the only way to use bonding. Fortunately, xmake supports the generation of files required by build tools such as Ninja, CMake and Makefile, so this project supports building from Ninja or CMakes:

  1. clone: git clone https://github.com/muqiuhan/bonding --recurse-submodules --depth=1
  2. and build it: make build.release or build for debug: make build.debug

    or use one of cmake and ninja

Install

  • The easiest is make install, it will try to request administrator permission to install

Other install options:

  • xmake -o INSTALLDIR to set the install directory.

    e.g. xmake install -o /usr/local

    or DESTDIR=/usr/local xmake install

    or INSTALLDIR=/usr/local xmake install

  • xmake -g GROUP to install all targets of the given group. It support path pattern matching.

    e.g. xmake install -g test

    or xmake install -g test_*

    or xmake install --group=benchmark/*

Debug

Bonding need advanced permissions to create, such as restricting resources through cgroups, restricting system calls through seccomp, etc. So they must be debug with sudo. For example:

sudo lldb ./build/linux/x86_64/debug/bonding run --debug

USAGE:

Usage: bonding [help] [init] [run] [help] [version]

 [init]
        Initialize the current directory as the container directory

 [run]
        Run with the current directory as the container directory

 [help]
        show this message

 [version]
        show the version of bonding

Bonding sets the environment and various parameters through the configuration file bonding.json:

{
    "hostname": "Test",
    "debug": true,
    "uid": 0,
    "mount_dir": "./mount_dir",
    "command": "/bin/bash",
    "mounts": [
        [
            "/lib",
            "/lib"
        ],
        [
            "/lib64",
            "/lib64"
        ]
    ],
    "clone": [
        "CLONE_NEWNS",
        "CLONE_NEWCGROUP",
        "CLONE_NEWPID",
        "CLONE_NEWIPC",
        "CLONE_NEWNET",
        "CLONE_NEWUTS"
    ],
    "cgroups-v1": {
        "cpu.shares": "256",
        "pids.max": "64",
        "blkio.bfq.weight": "64",
        "memory.limit_in_bytes": "1073741824"
    }
}
  • mount_dir is the root directory where the container runs
  • mounts is the external directory that the container needs to mount
  • command is the path and arguments to the application running inside the container
  • clone is the process running command CLONE_FLAG, see man clone
  • cgroups-v1 is used to limit the resources of the container, see Control Groups Version 1

Dependencies

REFERENCES

LICENSE

Copyright (C) 2023 Muqiu Han [email protected]

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.