gearman-ec2-build-script-0.1

(C) Copyright 2014 Bionicfish (http://bionic.fish/) 

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


Install Instructions
###################################################################################

1. Select and copy the commands between the "CUT" marks
2. Paste the commands into the instance terminal window
3. Wait...
4. Wait... 
5. Confirm that reverse_client.php example returns the reverse string correctly 
6. Enjoy your new gearman server




........... CUT CUT CUT ............

#### Gearman EC2 Build Script....

#### Configure EC2 Server Base 
####################################################################################

#### Install Patches....
sudo yum -y update

#### Install dependences
sudo yum -y groupinstall 'Development Tools'
sudo yum -y install boost-devel
sudo yum -y install gperf
sudo yum -y install libevent-devel
sudo yum -y install sqlite-devel
sudo yum -y install libmemcached-devel
sudo yum -y install mysql-devel
sudo yum -y install mysql
sudo yum -y install php-mysql
sudo yum -y install memcached

#### GEARMAND  
####################################################################################

#### Download and install gearmand
cd /tmp
mkdir gearmand
cd gearmand
wget https://launchpad.net/gearmand/1.2/1.1.9/+download/gearmand-1.1.9.tar.gz
tar zxf gearmand-1.1.9.tar.gz
cd gearmand-1.1.9
./configure 
make
sudo make install

#### Configure Gearmand and Start....
sudo useradd -M -G daemon gearmand
sudo mkdir -p /var/run/gearmand/
sudo touch /var/log/gearmand.log
sudo chown gearmand:gearmand /var/log/gearmand.log
sudo touch /etc/sysconfig/gearmand
sudo chmod 777 /etc/sysconfig/gearmand
sudo echo -e 'OPTIONS="--listen=localhost --job-retries=3 --verbose ERROR --log-file=/var/log/gearmand.log"' > /etc/sysconfig/gearmand
sudo chmod 644 /etc/sysconfig/gearmand
sudo sed -i 's:/usr/sbin/gearmand:/usr/local/sbin/gearmand:' support/gearmand.init
sudo cp support/gearmand.init /etc/init.d/gearmand
sudo chmod a+x /etc/init.d/gearmand
sudo chkconfig --add gearmand
sudo chkconfig gearmand on
sudo service gearmand start

#### Build Php enviroment 
sudo yum -y install php php-pear php-devel httpd-devel php-pecl-apc php-cli
sudo pecl config-set php_ini /etc/php.ini
sudo pear config-set php_ini /etc/php.ini
sudo pecl install gearman

#### Memcached Support
sudo pecl install memcache

#### Net_Gearman Support (for Gearman Monitor Support) 
sudo pear install Net_Gearman-0.2.3

#### SUPERVISORD   
####################################################################################

#### Install Supervisord
sudo yum install python-setuptools
sudo easy_install supervisor

#### Create Supervisord init.d file
sudo mkdir /var/run/supervisord
sudo touch /etc/init.d/supervisord
sudo chmod 777 /etc/init.d/supervisord
sudo cat <<'EOF' >/etc/init.d/supervisord
#!/bin/sh
#
# /etc/rc.d/init.d/supervisord
#
# Supervisor is a client/server system that
# allows its users to monitor and control a
# number of processes on UNIX-like operating
# systems.
#
# chkconfig: - 64 36
# description: Supervisor Server
# processname: supervisord

# Source init functions
. /etc/rc.d/init.d/functions

prog="supervisord"

prefix="/usr/"
exec_prefix="${prefix}"
prog_bin="${exec_prefix}/bin/supervisord"

PIDFILE="/var/run/supervisord/$prog.pid"

OPTIONS="-c /etc/supervisord/supervisord.conf"

start() {
        echo -n $"Starting $prog: "
        daemon $prog_bin --pidfile $PIDFILE $OPTIONS
        RETVAL=$?
        echo
        return $RETVAL
}

stop()
{
        echo -n $"Shutting down $prog: "
        [ -f $PIDFILE ] && killproc $prog || success $"$prog shutdown"
        echo
}

case "$1" in

  start)
    start
  ;;

  stop)
    stop
  ;;

  status)
        status $prog
  ;;

  restart)
    stop
    start
  ;;

  *)
    echo "Usage: $0 {start|stop|restart|status}"
  ;;

esac
EOF
sudo chmod 755 /etc/init.d/supervisord

#### Create Supervisord config file
sudo mkdir /etc/supervisord
sudo touch /etc/supervisord/supervisord.conf
sudo chmod 777 /etc/supervisord/supervisord.conf
sudo echo_supervisord_conf > /etc/supervisord/supervisord.conf
sudo chmod 644 /etc/supervisord/supervisord.conf

#### Update Settings in the default supervisord config file
sudo sed -i 's:/tmp/supervisord.log:/var/log/supervisord.log:' /etc/supervisord/supervisord.conf
sudo sed -i 's:\;\[include]:\[include]:' /etc/supervisord/supervisord.conf
sudo sed -i 's:\;files = relative/directory/\*.ini:files = /etc/supervisord/\*.ini:' /etc/supervisord/supervisord.conf

#### Set Supervisord to start at boot-up
sudo chkconfig --add supervisord
sudo chkconfig supervisord on

#### Create working directories for workers and their log files 
sudo mkdir /etc/supervisord/gearman_workers    #Create directory for gearman_workers to live in
sudo mkdir /var/log/supervisord/               #Create Supervisord Log directory
sudo mkdir /var/log/supervisord/gearman/       #Create Gearman Worker Log directory

#### CREATE A TEST WORKER AND ENABLE FOR AUTO START VIA SUPERVISORD 
####################################################################################

#### Create Supervisord reverse_worker.ini file
sudo touch /etc/supervisord/reverse_worker.ini
sudo chmod 777 /etc/supervisord/reverse_worker.ini
sudo cat <<'EOF' >/etc/supervisord/reverse_worker.ini
[program:reverse_worker]
command=/usr/bin/php reverse_worker.php              
process_name=%(program_name)s_%(process_num)02d
numprocs=1                    
directory=/etc/supervisord/gearman_workers/                
autostart=true                
autorestart=unexpected        
environment=GEARMAN_USER=gearmand
user=gearmand           
stdout_logfile=/var/log/supervisord/gearman/reverse_worker.log        
stopsignal=KILL
EOF
sudo chmod 755 /etc/supervisord/reverse_worker.ini

#### Create reverse_worker.php
sudo touch /etc/supervisord/gearman_workers/reverse_worker.php
sudo chmod 777 /etc/supervisord/gearman_workers/reverse_worker.php
sudo cat <<'EOF' >/etc/supervisord/gearman_workers/reverse_worker.php
<?php
$worker= new GearmanWorker();
$worker->addServer();
$worker->addFunction("reverse", "my_reverse_function");
while ($worker->work());

function my_reverse_function($job)
{
  return strrev($job->workload());
}
?>
EOF
sudo chmod 755 /etc/supervisord/gearman_workers/reverse_worker.php

#### Start supervisord (or restart it if already running)
sudo service supervisord restart

#### Create reverse_client.php
sudo touch /etc/supervisord/gearman_workers/reverse_client.php
sudo chmod 777 /etc/supervisord/gearman_workers/reverse_client.php
sudo cat <<'EOF' >/etc/supervisord/gearman_workers/reverse_client.php
<?php
$client= new GearmanClient();
$client->addServer();
print "\nRunning test...";
print "\nReversing \"Hello World\" using reverse_worker .....   ";
print $client->do("reverse", "Hello World!");
print "\nComplete!\n\n";
?>
EOF
cd /etc/supervisord/gearman_workers/
php reverse_client.php
echo "Script End! Have a good day!"         
         


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