ship

Purpose

Have various services in same host
Shared resources
Isolated services
Isolated IP Address

Introduction

This simple script is very helpful if you want, quickly, test some software in a chroot with totally isolation (mounts, network, user,etc), using some new technologies like namespaces. This is nothing more than one, normal, chroot but isolated.

I called "ship" to each of isolated chroot. And, is possible you have one or more ship/s running.

With this you don't need to install virtualbox, vmware, etc... ok, but you need install some packages :)

By default, Debian distributions don't have the option -p (unshare pid) and -f (fork before launching) at unshare, so, we need compile the util-linux package.

You change the ip's at /etc/network/interfaces and /etc/hosts in the beginning, before your start. By default i use 192.168.79.139. The next version must have this feature solved.

Now, the openvswitch support was release. Some configurations are needed on host (see below) and use the chrootmns script.

In the next version i will test/develop, first, in Ubuntu and after CentOs

Features

Run like a normal SO
All services was isolated
/proc and /sys are host independent
Is possible have one or more network interfaces
CLI to start/stop/connect in to chip
run different versions of debian OS
Portable

Note

Developed and tested in debian and derivatives, only!

Requirements

Kernel >= 3.14

Add this repository to install kernel > 3.14:

> echo 'deb http://ftp.debian.org/debian/ wheezy-backports main non-free contrib' >> /etc/apt/sources.list

> apt-get update

> apt-get -t wheezy-backports install linux-image-amd64 linux-headers-amd64

Debian/Ubuntu packages:

apt-get install build-essential python-dev python-pkg-resources python-setuptools python-ipaddr curl unzip vim openvswitch-switch

easy_install pip

pip install ipcalc netaddr sh config

Installation

From Script:

sh install_me or sh install_me_ovs

Usage

Usage: shipmn [options]

Options:
  create			create new ship using debootstrap
  status			ship's status
  start all			start all ship's
  start ship_name		start ship
  stop all			stop all ship's
  stop ship_name		stop  ship
  con ship_name			enter in ship

Examples:

-> shipmn create webserver
-> shipmn status
Status all
webserver Not Running
-> shipmn start webserver
-> shipmn con webserver

You can find some use case in HowTo folder!!

rjmsilveira/ship