pyspaces

Works with Linux namespaces through glibc with pure python

Goals

There is so many beautiful tools like docker, rocket and vagga written in go and rust, but none in python. I think that is because there is no easy way to work with linux namespaces in python:

you can use asylum - a project that looks dead and with a codebase hosted not on mainstream hub like github
or you can use the python-libvirt bindings with a big layer of abstraction
or just use the native glibc library with ctypes
otherwise subprocess.Popen -- your choice

I want to change this: I want to create native python bindings to glibc with interface of python multiprocessing.Process.

PS: you can look at python-nsenter too, it's looks awesome.

PPS: new project from author of asylum - butter

Example

First simple example:

import os
from pyspaces import Container


def execute(argv):
    os.execvp(argv[0], argv)

cmd = "mount -t proc proc /proc; ps ax"
c = Container(target=execute, args=(('bash', '-c', cmd),),
              uid_map='0 1000 1',
              newpid=True, newuser=True, newns=True
              )
c.start()
print("PID of child created by clone() is %ld\n" % c.pid)
c.join()
print("Child returned: pid %s, status %s" % (c.pid, c.exitcode))

output:

PID of child created by clone() is 15978

PID TTY      STAT   TIME COMMAND
1   pts/19   S+     0:00 bash -c mount -t proc proc /proc; ps ax
3   pts/19   R+     0:00 ps ax

Child returned: pid 15978, status 0

CLI

space execute -v --pid --mnt --user --uid 1000 --gid 1000 bash -c 'mount -t proc /proc; ps ax'

space chroot --pid --uid '0 1000 1' ~/.local/share/lxc/ubuntu/rootfs/ /bin/ls /home/

space inject --net --mnt 19840 bash

Note: If the program you're trying to exec is dynamically linked, and the dynamic linker is not present in /lib in the chroot environment - you will get the following error: "OSError: [Errno 2] No such file or directory". You need all the other files the dynamic-linked program depends on, including shared libraries and any essential configuration/tables/etc in the new root directories. src

Friz-zy/pyspaces

pyspaces

Goals

Example

CLI

Security

Changelog

TODO