# Update AWS Instance
Launch and SSH to AWS Instance<br>
Type `sudo su`<br>
Type `yum update -y`<br>
Type `yum groupinstall "Development Tools" -y`<br>
Type `pip install --upgrade pip` (pip resides at /usr/local/bin/pip, pip version 8.0.2, python version 2.7.10)

# Install Thumbor Dependencies
Type `yum install libjpeg-turbo-devel libjpeg-turbo-utils libtiff-devel libpng-devel pngcrush jasper-devel libwebp-devel libcurl-devel cmake -y`<br>
Type `/usr/local/bin/pip uninstall pycurl`<br>
Type `export PYCURL_SSL_LIBRARY=nss`<br>
Type `/usr/local/bin/pip install pycurl`<br>
Type `/usr/local/bin/pip install --upgrade setuptools`<br>
Type `/usr/local/bin/pip install numpy`<br>

# Install Gifsicle
`git clone https://github.com/kohler/gifsicle.git`<br>
`cd gifsicle`<br>
`./bootstrap.sh`<br>
`./configure`<br>
`make`<br>
`make install`<br>
`cd ../`<br>
`rm -rf gifsicle/`<br>

Gifscile is installed at /usr/local/bin/gifscile

# Install Thumbor
Type `/usr/local/bin/pip install thumbor`<br>
Type `/usr/local/bin/thumbor-config > /etc/thumbor.conf`<br>
Type `vim /etc/thumbor.conf`<br>

    RESPECT_ORIENTATION = True
    ...
    SECURITY_KEY = 'xehbyQKFPsp6gh64yDEnCUEGEecC
    ...
    DETECTORS = [
        'thumbor.detectors.face_detector',
        'thumbor.detectors.feature_detector'
    ]
    ...
    OPTIMIZERS = [
        'thumbor.optimizers.jpegtran',
        'thumbor.optimizers.gifsicle',
        'thumbor.optimizers.pngcrush'
    ]
    JPEGTRAN_PATH = '/usr/bin/jpegtran'
    GIFSICLE_PATH = '/usr/local/bin/gifsicle'
    PNGCRUSH_PATH = '/usr/bin/pngcrush'

Also enable FILTERS[] needed.

`vim /usr/local/lib64/python2.7/site-packages/thumbor/optimizers/pngcrush.py`<br>

    #!/usr/bin/python
    # -*- coding: utf-8 -*-
    
    # thumbor imaging service
    # https://github.com/thumbor/thumbor/wiki
    
    # Licensed under the MIT license:
    # http://www.opensource.org/licenses/mit-license
    
    
    import os  
    import subprocess
    
    from thumbor.optimizers import BaseOptimizer  
    from thumbor.utils import logger
    
    
    class Optimizer(BaseOptimizer):  
        def __init__(self, context):
            super(Optimizer, self).__init__(context)

            self.runnable = True
            self.pngcrush_path = self.context.config.PNGCRUSH_PATH
            if not (os.path.isfile(self.pngcrush_path) and os.access(self.pngcrush_path, os.X_OK)):
                logger.error("ERROR pngcrush path '{0}' is not accessible".format(self.pngcrush_path))
                self.runnable = False
    
        def should_run(self, image_extension, buffer):
            return 'png' in image_extension and self.runnable
    
        def optimize(self, buffer, input_file, output_file):
            command = '%s -reduce -q %s %s ' % (
                self.pngcrush_path,
                input_file,
                output_file,
            )
            with open(os.devnull) as null:
                subprocess.call(command, shell=True, stdin=null)

`vim /usr/local/lib64/python2.7/site-packages/thumbor/optimizers/gifsicle.py`<br>

    #!/usr/bin/python
    # -*- coding: utf-8 -*-
    
    # thumbor imaging service
    # https://github.com/globocom/thumbor/wiki
    
    # Licensed under the MIT license:
    # http://www.opensource.org/licenses/mit-license
    # Copyright (c) 2011 globo.com timehome@corp.globo.com
    
    import os
    
    from thumbor.optimizers import BaseOptimizer
    
    class Optimizer(BaseOptimizer):
    
        def should_run(self, image_extension, buffer):
            return 'gif' in image_extension
    
        def optimize(self, buffer, input_file, output_file):
            gifsicle_path = self.context.config.GIFSICLE_PATH
            command = '%s --optimize --output %s %s ' % (
                gifsicle_path,
                output_file,
                input_file,
            )
            os.system(command)

# Install Supervisord
Type `/usr/local/bin/pip install supervisor`<br>
Type `echo_supervisord_conf > /etc/supervisord.conf`<br>
Type `vim /etc/supervisord.conf`<br>

    [program:thumbor]
    command=/usr/local/bin/thumbor --ip=127.0.0.1 --port=900%(process_num)s --conf=/etc/thumbor.conf
    process_name=thumbor900%(process_num)s
    numprocs=4
    stdout_logfile=/var/log/thumbor900%(process_num)s.stdout.log
    stderr_logfile=/var/log/thumbor900%(process_num)s.stderr.log

Supervisor socket is at `/tmp/supervisor.sock`<br>
Supervisor log file is at `/tmp/supervisord.log`<br>
Supervisor pid file is at `/tmp/supervisord.pid`<br>

Type `sudo vim /etc/init.d/supervisord` 

    #! /bin/sh
    ### BEGIN INIT INFO
    # Provides:          supervisord
    # Required-Start:    $remote_fs
    # Required-Stop:     $remote_fs
    # Default-Start:     2 3 4 5
    # Default-Stop:      0 1 6
    # Short-Description: Supervisor init script
    # Description:       Supervisor init script    
    ### END INIT INFO
    
    # Supervisord auto-start
    #
    # description: Auto-starts supervisord
    # processname: supervisord
    # pidfile: /tmp/supervisord.pid
    
    SUPERVISORD=/usr/local/bin/supervisord
    SUPERVISORCTL=/usr/local/bin/supervisorctl
    ARGS="-c /etc/supervisord.conf"
    
    case $1 in
    start)
            echo -n "Starting supervisord: "
            $SUPERVISORD $ARGS
            echo
            ;;
    stop)
            echo -n "Stopping supervisord: "
            $SUPERVISORCTL shutdown
            ;;
    restart)
            echo -n "Stopping supervisord: "
            $SUPERVISORCTL shutdown
            echo -n "Starting supervisord: "
            $SUPERVISORD $ARGS
            echo
            ;;
    esac

Type `chmod +x supervisord`<br>
Type `chkconfig --add supervisord`<br>
Type `chkconfig supervisord on`<br>

## Start, Stop, Restart Supervisord
/etc/init.d/supervisord start<br>
/etc/init.d/supervisord stop<br>
/etc/init.d/supervisord restart<br>

# Install Nginx
Type `sudo yum install nginx -y`<br>
Type `chkconfig nginx on`<br>
Type `vim /etc/nginx/conf.d/thumbor.conf`<br>

    upstream thumbor  {  
        server 127.0.0.1:9000;
        server 127.0.0.1:9001;
        server 127.0.0.1:9002;
        server 127.0.0.1:9003;
    }
    
    server {  
        listen       80;
        server_name  thumbor.vanitee.com;
        client_max_body_size 10M;
    
        location / {
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header HOST $http_host;
            proxy_set_header X-NginX-Proxy true;
    
            proxy_pass http://thumbor;
            proxy_redirect off;
        }
    }

Type `vim /etc/nginx/nginx.conf`<br>

Use pound sign (#) to comment out all `server {}` so that port 80 is freed up for thumbor

Type `service nginx restart`<br>

# Install OpenCV

`wget https://github.com/Itseez/opencv/archive/3.1.0.zip`<br>
`unzip 3.1.0.zip`<br>
`mkdir release`<br>
`cd release`<br>
`cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_PYTHON_SUPPORT=ON ..`<br>
`make`<br>
`make install`<br>

Reference:
http://www.dadoune.com/blog/best-thumbnailing-solution-set-up-thumbor-on-aws/