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Create community slaves

The purpose of this page is to provide advices to create CloudStack linux templates ready to use for others as Community Templates.

The page is divided in 3 parts,

  • what seems to be common to all linux Systems
  • what is specific to Debian Systems
  • what is specific to RedHat Systems

Community templates

Caution

When creating a qcow2 template, ensure that it follows the qcow2 v2 format, otherwise it won’t work on CI. You can generate such qcow2 file using the compat option of qemu-img like:

$>qemu-img create -f qcow2 -o compat=0.10 mytemplate.qcow2 10G

Previous steps

This document is intendend to be used once the base system is installed via iso. This part should be available somewhere else... If you need to create a user during system installation, one can use a user named template-user. Everything below this line should be run as root

Common

  • Initialize root password (set ‘password’ as root password)

 passwd

  • Initialize ci account (default password is ‘ci’)

 useradd -d /builds -m -p '$6$fasToP1b$X09p76wvP5L3rvVYQ.UAFghykr/Kn.EtuXyGT5wajifBq0hDNXDxZaJtzk2cUz/1gwstm.moka2/I9fwtp2gG1' -s /bin/bash ci
 mkdir ~ci/.ssh
 touch ~ci/.ssh/authorized_keys
 chown -R ci:ci ~ci/.ssh
 chmod 700 ~ci/.ssh
 chmod 600 ~ci/.ssh/authorized_keys

  • Create group admin and add ci user to this group

 groupadd admin
 gpasswd -a ci admin

Debian

  • Update the system

 apt-get update && apt-get dist-upgrade

  • Install the common libraries and tools to the template

 apt-get -y install openjdk-6-jre openjdk-6-jdk gcc g++ make gfortran cmake python-distutils-extra rubygems ruby-rvm subversion git-core python-numpy python-scipy python-matplotlib ipython mercurial bzr openmpi1.5-bin vim emacs scons ocaml

 apt-get -y install whois

  • Get the scripts to work with CloudStack Integration (set ssh key on instance create and allow dynamically modifying password)

 wget --no-check-certificate https://ci-cloud.inria.fr/cloud-set-guest-sshkey.in -O cloud-set-guest-sshkey.in
 wget --no-check-certificate https://ci-cloud.inria.fr/cloud-set-guest-password -O cloud-set-guest-password

 cp cloud-set-guest-password /etc/init.d/
 chmod +x /etc/init.d/cloud-set-guest-password 
 update-rc.d cloud-set-guest-password defaults 98

 cp cloud-set-guest-sshkey.in /etc/init.d/
 chmod +x /etc/init.d/cloud-set-guest-sshkey.in 
 update-rc.d cloud-set-guest-sshkey.in defaults 98

  • Clean the system

 userdel -f -r template-user 
 echo '' > /etc/hostname

RedHat

  • Add the admin group to sudoers

 echo '%admin ALL=(ALL) ALL' >> /etc/sudoers

  • Install common libraries and tools

 rpm -ivh http://fr2.rpmfind.net/linux/epel/6/i386/epel-release-6-7.noarch.rpm
 yum -y install java-1.6.0-openjdk-devel gcc gcc-c++ gcc-gfortran make cmake rubygems subversion git numpy scipy python-matplotlib ipython mercurial bzr openmpi vim-enhanced emacs-nox scons ocaml

  • Install rvm

 yum install -y gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel openssl-devel openssl make bzip2 autoconf automake libtool bison iconv-devel
 curl -L get.rvm.io | bash -s stable

  • Get the scripts to work with CloudStack Integration (set ssh key on instance create and allow dynamically modifying password)

 wget --no-check-certificate https://ci-cloud.inria.fr/cloud-set-guest-sshkey.in -O cloud-set-guest-sshkey.in
 wget --no-check-certificate https://ci-cloud.inria.fr/cloud-set-guest-password -O cloud-set-guest-password

 cp cloud-set-guest-password /etc/init.d/
 chmod +x /etc/init.d/cloud-set-guest-password 
 chkconfig --add cloud-set-guest-password 

 cp cloud-set-guest-sshkey.in /etc/init.d/
 chmod +x /etc/init.d/cloud-set-guest-sshkey.in 
 chkconfig --add cloud-set-guest-sshkey.in

  • Clean the system

 echo '' > /etc/udev/rules.d/70-persistent-net.rules 

 cat < /etc/sysconfig/network-scripts/ifcfg-eth0
 DEVICE="eth0"
 BOOTPROTO="dhcp"
 IPV6INIT="yes"
 IPV6_AUTOCONF="yes"
 NM_CONTROLLED="yes"
 ONBOOT="yes"
 TYPE="Ethernet"
 EOF

 sed 's/enforcing/permissive/g' -i /etc/selinux/config
 sed -i 's/HOSTNAME=.*//' /etc/sysconfig/network

Common

Finally clean the root user bash history

 echo > ~/.bash_history