Category:XenReference

From HacDC Wiki
Jump to navigation Jump to search

This page was written during commissioning of a HacDC server. It is no longer relevant, but kept for archival use.

Test

xen-create-image --hostname test --ip 10.0.0.x --gateway 10.0.0.1 --netmask 255.255.255.0 --vcpus 2 --pygrub --dist squeeze

xen create /etc/xen/test.cfg

xen console test

<do stuff>

Ctrl + ]

xen-delete-image test

CreateUser

#!/bin/bash

#Usage: createXenUser.sh <userName>

randString=$(head -c 6 /dev/urandom | base64 | tr -dc 'a-z0-9')          
while [[ ${#randString} -lt 8 ]]                                                                            
do                                                                                     
        randString=${randString}$(head -c 4 /dev/random | base64 | tr -dc 'a-z0-9')
done                                                                                   

useradd -m -p $randString "$1"

echo "User $1 created with password:
$randString"


CreateUserVMs

#!/bin/bash

#Usage: ./createXenUserVM <userName> <VM_Number> <dist>
#Ex: ./createXenUserVM testUser 1 squeeze

mkdir -p /etc/xen/hosted
xen-create-image --output /etc/xen/hosted --hostname "$1-$2" --ip auto --gateway 10.0.0.1 --netmask 255.255.255.0 --vcpus 2 --pygrub --fs=ext4 --dist "$3"
mv /etc/xen/hosted/"$1-$2".cfg /etc/xen/hosted/"$1-$2"

mkdir -p /etc/sudoers.d
echo "$1 ALL=NOPASSWD:/usr/sbin/xm console $1-$2, /usr/sbin/xm create -c /etc/xen/hosted/$1-$2, /usr/sbin/xm create /etc/xen/hosted/$1-$2, /usr/sbin/xm destroy $1-$2, /usr/sbin/reimage-dom $1-$2 ?" > /etc/sudoers.d/xen "$1-$2"

/etc/init.d/sudo restart

InstallationNotes

  1. In /etc/xen/xend-config.sxp uncomment the network-nat and vif-nat entries.
  2. The ips.txt list must be initialized by:

for i in $(seq 100 200) ; do echo 10.0.0.$i >> /etc/xen-tools/ips.txt ; done

Reference

https://wiki.debian.org/Xen#Domain_0_.28Host.29_Installation http://dev.e-taxonomy.eu/trac/wiki/Xen_installation http://wiki.xenproject.org/wiki/Nested_Virtualization_in_Xen#How_to_use_nested http://wiki.xen.org/wiki/Host_Configuration/Networking#Routing http://blog.manula.org/2012/04/manually-configuring-nat-networking-in.html http://www.fclose.com/816/port-forwarding-using-iptables/ https://wiki.debian.org/iptables http://blog.manula.org/2011/02/xen-bridged-networking-mode.html http://xen.1045712.n5.nabble.com/console-access-to-non-root-xen-3-0-td2560667.html http://xen-tools.org/pipermail/xen-tools-discuss/2009-September/000674.html https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Tips_and_tricks-Limit_network_bandwidth_for_a_Xen_guest.html http://serverfault.com/questions/52027/how-can-i-limit-per-user-bandwidth

This category currently contains no pages or media.