Puppet installation script

puppet-install.sh

#!/usr/bin/env bash
set -e
set -u
 
EXPECTED_ARGS=2
E_BADARGS=65
 
if [ $# -ne $EXPECTED_ARGS ]
then
  echo "Usage: $0 master_hostname node_hostname"
  exit $E_BADARGS
fi

# Detect OS [https://github.com/coto/server-easy-install/blob/master/lib/core.sh]

lowercase(){
    echo "$1" | sed "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/"
}

OS=`lowercase \`uname\``
KERNEL=`uname -r`
MACH=`uname -m`

if [ "{$OS}" == "windowsnt" ]; then
    OS=windows
elif [ "{$OS}" == "darwin" ]; then
    OS=mac
else
    OS=`uname`
    if [ "${OS}" = "SunOS" ] ; then
        OS=Solaris
        ARCH=`uname -p`
        OSSTR="${OS} ${REV}(${ARCH} `uname -v`)"
    elif [ "${OS}" = "AIX" ] ; then
        OSSTR="${OS} `oslevel` (`oslevel -r`)"
    elif [ "${OS}" = "Linux" ] ; then
        if [ -f /etc/redhat-release ] ; then
            DistroBasedOn='RedHat'
            DIST=`cat /etc/redhat-release |sed s/\ release.*//`
            PSUEDONAME=`cat /etc/redhat-release | sed s/.*\(// | sed s/\)//`
            REV=`cat /etc/redhat-release | sed s/.*release\ // | sed s/\ .*//`
        elif [ -f /etc/SuSE-release ] ; then
            DistroBasedOn='SuSe'
            PSUEDONAME=`cat /etc/SuSE-release | tr "\n" ' '| sed s/VERSION.*//`
            REV=`cat /etc/SuSE-release | tr "\n" ' ' | sed s/.*=\ //`
        elif [ -f /etc/mandrake-release ] ; then
            DistroBasedOn='Mandrake'
            PSUEDONAME=`cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//`
            REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
        elif [ -f /etc/debian_version ] ; then
            DistroBasedOn='Debian'
            DIST=`cat /etc/lsb-release | grep '^DISTRIB_ID' | awk -F=  '{ print $2 }'`
            PSUEDONAME=`cat /etc/lsb-release | grep '^DISTRIB_CODENAME' | awk -F=  '{ print $2 }'`
            REV=`cat /etc/lsb-release | grep '^DISTRIB_RELEASE' | awk -F=  '{ print $2 }'`
        fi
        if [ -f /etc/UnitedLinux-release ] ; then
            DIST="${DIST}[`cat /etc/UnitedLinux-release | tr "\n" ' ' | sed s/VERSION.*//`]"
        fi
        OS=`lowercase $OS`
        DistroBasedOn=`lowercase $DistroBasedOn`
        readonly OS
        readonly DIST
        readonly DistroBasedOn
        readonly PSUEDONAME
        readonly REV
        readonly KERNEL
        readonly MACH
    fi

fi

MASTER_HOSTNAME=$1
NODE_HOSTNAME=$2

hostname $NODE_HOSTNAME

case $DistroBasedOn in
debian)
 echo $NODE_HOSTNAME > /etc/hostname
 apt-get -y install wget
 wget http://apt.puppetlabs.com/puppetlabs-release-precise.deb
 dpkg -i puppetlabs-release-precise.deb
 apt-get update
 apt-get -y install puppet
 ;;
redhat)
 echo "NETWORKING=yes" > /etc/sysconfig/network
 echo "HOSTNAME=$NODE_HOSTNAME" >> /etc/sysconfig/network
 rpm -ivh http://yum.puppetlabs.com/el/6/products/i386/puppetlabs-release-6-6.noarch.rpm || true
 yum -y install puppet
 ;;
*)
 echo "Your operating system does not compatible with the script"
 exit 1
esac

echo "[main]
logdir=/var/log/puppet
vardir=/var/lib/puppet
ssldir=/var/lib/puppet/ssl
rundir=/var/run/puppet
factpath=\$vardir/lib/facter
templatedir=\$confdir/templates
server=$MASTER_HOSTNAME
report=true
pluginsync=true
 
[master]
# These are needed when the puppetmaster is run by passenger
# and can safely be removed if webrick is used.
ssl_client_header = SSL_CLIENT_S_DN 
ssl_client_verify_header = SSL_CLIENT_VERIFY" > /etc/puppet/puppet.conf


case $DistroBasedOn in
debian)
 echo '# Defaults for puppet - sourced by /etc/init.d/puppet

# Start puppet on boot?
START=yes

# Startup options
DAEMON_OPTS=""' > /etc/default/puppet
 ;;
esac

puppet resource service puppet ensure=running enable=true