XEN VM placement engine - OpenNEbula

1. Requirement

1.1 Xen installation

• Install from deb
• Install from source

1.2 Required Package Installatiom

$ sudo aptitude install ruby sqlite3 libsqlite3-0 libsqlite3-dev libsqlite3-ruby \ 
libxmlrpc-c3 libxmlrpc-c3-dev scons g++ flex bison

• Package information:
  • ruby: An interpreter of object-oriented scripting language Ruby
  • sqlite3: A command line interface for SQLite 3
  • libxmlrpc-c3: A lightweight RPC library based on XML and HTTP for C and C++
  • scons: A replacement for Make
  • flex: A fast lexical analyzer generator
  • bison: A parser generator that is compatible with YACC

2. OpenNEbula Installation

2.1 ​OpenNEbula download

$ tar zxvf one-1.2.0.tar.gz
$ cd one-1.2.0
$ scons
$ sudo mkdir /home/one 
$ sudo ./install.sh -d /home/one

2.2 Verification

$ ls /home/one
bin  etc  include  lib  share  var

3. OpenNEbula Usage

• Environment Setup

  $ sudo vim /etc/profile
  export ONE_LOCATION=/home/one
  export ONE_XMLRPC=http://localhost:2633/RPC2
  export PATH=$ONE_LOCATION/bin:$PATH
  

• Statup OpenNEbula

  $ sudo one start
  

• Add Cluster

  $ onehost create one im_xen vmm_xen tm_ssh
  $ onehost list
   HID NAME                      RVM   TCPU   FCPU   ACPU    TMEM    FMEM STAT
     0 one                         0    400    400    400 6216704  130048   on
  

4. Massively Deployment of Cluster

• Refer to ​https://trac.nchc.org.tw/grid/wiki/jazz/DRBL_Xen

5. Using OpenNEbula to submit VM

• Create Image (We using xen-tools)

  $ sudo vim /etc/xen-tools
  $ sudo xen-create-image --hostname test1 --ip 140.110.X.X --acounts
  

• Configuration

  $ vim /home/images/domains/test1/test1.cfg
  MEMORY=128
  CPU=4
  OS=[
       kernel="/boot/vmlinuz-2.6.18.8",
       initrd="/boot/initrd.img-2.6.18.8",
       root="sda1",
       boot="hd"]
  DISK=[
       source="/home/images/domains/vm01/disk.img",
       target="sda1",
       readonly=no]
  DISK=[
       source="/home/images/domains/vm01/swap.img",
       target="sda2",
       readonly=no]
  NIC=[mac="00:16:3e:01:01:03"]
  
  

• Submit vm in OpenNEbula

  $ sudo onevm submit test1.cfg
  $ sudo onevm list
    ID     NAME STAT CPU     MEM        HOSTNAME        TIME
     0    one-0 runn   0  131072             one 00 00:05:24
  
  $ sudo xm list
  Name                                        ID   Mem VCPUs      State   Time(s)
  Domain-0                                     0  5840     4     r-----    307.8
  one-0                                        2   128     1     -b----      1.6
  
  $ sudo xm console one-0
  

Problem

• Ubuntu 8.10 的kernel 2.6.27-9-server 目前只support DomU (no Dom0) 2008/12/10

想法

• OpenNEbula的控制介面非常簡單明瞭，DRBL是否也可加入類似的介面來監控和管理node。
• 降的架構可以完善的提供IaaS的服務嗎？是否還有缺失呢？
• 是否撰寫Web版的OpenNEbula介面，讓外界的使用者可以透過簡單的點選來創建自己的VM？

Reference

• ​OpenNEbula