install-prereqs

#!/bin/bash

REDHAT_REPOS=("rpm http://rbel.frameos.org/rbel6" 
    "rpm http://mirrors.servercentral.net/fedora/epel/6/i386/epel-release-6-7.noarch.rpm"
    "bare nginx http://nginx.org/packages/rhel/6/x86_64/")
UBUNTU_REPOS=("http://apt.opscode.com precise-0.10 main"
    "http://ppa.launchpad.net/nginx/stable/ubuntu precise main")

mkdir -p /opt/dell

[[ -f /opt/dell/.prereq_installed ]] && exit 0

case $1 in
    redhat*|centos-*)
        reboot=false
        if [[ ! -f /etc/modprobe.d/ipv6.conf ]] ; then
            echo 'options ipv6 disable=1' >/etc/modprobe.d/ipv6.conf
            echo "Need to disable IPv6."
            reboot=true
        fi
        if ! (sestatus |grep -q disabled); then
            echo 'SELINUX=disabled' >/etc/selinux/config
            echo "Need to disable SELinux."
            reboot=true
        fi
        if [[ $reboot = true ]]; then
            echo "Please restart the system and then restart this install"
            echo "The installation will fail otherwise"
            exit 1
        fi
        mkdir -p /var/cache
        for repo in "${REDHAT_REPOS[@]}"; do
            r="${repo##* }"
            t="${repo% *}"
            case $t in
                rpm) curl -o "/var/cache/${r##*/}" -L "$r"
                    rpm -Uvh "/var/cache/${r##*/}";;
                bare) cat >>/etc/yum.repos.d/30-install-crowbar.repo <<EOF
[crowbar-install-${t#* }]
name=Crowbar install ${t#* } packages
baseurl=${r}
gpgcheck=0
EOF
                    ;;
            esac
        done
        yum -y install sudo ruby ruby-devel rubygems curl debootstrap;;
    ubuntu-*)
        for repo in "${UBUNTU_REPOS[@]}"; do
            cat >>/etc/apt/sources.list.d/30-install-crowbar.list <<EOF

deb $repo
deb-src $repo
EOF
        done
        apt-get -y install ruby ruby-dev rubygems curl debootstrap rpm
;;
esac
gem install json

touch /opt/dell/.prereq_installed