Project

By doing this project, you will learn how to automate the deployment of the WordPress application on the Amazon EC2 cloud using Cloudify.

Write a Cloudify blueprint for automating the installation of WordPress on the Amazon EC2 cloud. Perform the test on your Amazon EC2 account.

The blueprint should be written based on this topology:


You may have a look at example blueprint from cloudify-nodecellar-example which we have used in the previous tutorial. The blueprint is based on TOSCA standard. You may have a look at this document.

1. Your WordPress site generated from your blueprint.
2. A post in your WordPress site that describes your blueprint in details.
3. Put also some screenshots of your AWS Console manage on your WordPress site.

Email your ip address of your WordPress site to the instructors. walid.gaaloul@telecom-sudparis.eu

You can use the following script to associate with your topology:

1. Apache installation:

   #!/bin/bash -e
    
   sudo apt-get update
   sudo apt-get -y install apache2

2. PHP installation:

   #!/bin/bash -e
    
   sudo apt-get update
   sudo apt-get -y install php5 php5-mysql libapache2-mod-php5 php5-mcrypt
    
   sudo sed -i.bak "s/index.html index.cgi index.pl index.php/index.php index.html index.cgi/g" /etc/apache2/mods-enabled/dir.conf
   sudo service apache2 restart

3. MySQL installation and WordPress database construction:

   #!/bin/bash -e
    
   sudo apt-get update
   sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password password 123456'
   sudo debconf-set-selections <<< 'mysql-server mysql-server/root_password_again password 123456'
   sudo apt-get -y install mysql-server
    
   sudo sed -i.bak "s/bind-address/#bind-address/g" /etc/mysql/my.cnf
   sudo service mysql restart
    
   Q1="CREATE DATABASE wordpress;"
   Q2="CREATE USER 'wordpressuser'@'localhost' IDENTIFIED BY 'password';"
   Q3="CREATE USER 'wordpressuser'@'%' IDENTIFIED BY 'password';"
   Q4="GRANT ALL ON *.* TO 'wordpressuser'@'localhost';"
   Q5="GRANT ALL ON *.* TO 'wordpressuser'@'%';"
   SQL="${Q1}${Q2}${Q3}${Q4}${Q5}"
    
   mysql -h localhost -uroot -p123456 -e "${SQL}"

4. Wordpress installation:

   #!/bin/bash
    
   set -e
    
   function download() {
    
    url=$1
    name=$2
    
    if [ -f "`pwd`/${name}" ]; then
    ctx logger info "`pwd`/${name} already exists, No need to download"
    else
    # download to given directory
    ctx logger info "Downloading ${url} to `pwd`/${name}"
    
    set +e
    curl_cmd=$(which curl)
    wget_cmd=$(which wget)
    set -e
    
    if [[ ! -z ${curl_cmd} ]]; then
    curl -L -o ${name} ${url}
    elif [[ ! -z ${wget_cmd} ]]; then
    wget -O ${name} ${url}
    else
    ctx logger error "Failed to download ${url}: Neither 'cURL' nor 'wget' were found on the system"
    exit 1;
    fi
    fi
    
   }
    
    
   function untar() {
    
    tar_archive=$1
    destination=$2
    
    if [ ! -d ${destination} ]; then
    inner_name=$(tar -tf "${tar_archive}" | grep -o '^[^/]\+' | sort -u)
    ctx logger info "Untaring ${tar_archive}"
    tar -zxvf ${tar_archive}
    
    ctx logger info "Moving ${inner_name} to ${destination}"
    mv ${inner_name} ${destination}
    fi
   }
    
   TEMP_DIR='/tmp'
   WORDPRESS_TARBALL_NAME='latest.tar.gz'
    
   WORDPRESS_ROOT_PATH=${TEMP_DIR}/$(ctx execution-id)/wordpress
   WORDPRESS_PATH=~/wordpress
   mkdir -p ${WORDPRESS_ROOT_PATH}
    
   cd ${TEMP_DIR}
   download http://wordpress.org/${WORDPRESS_TARBALL_NAME} ${WORDPRESS_TARBALL_NAME}
   untar ${WORDPRESS_TARBALL_NAME} ${WORDPRESS_PATH}
    
   cp ~/wordpress/wp-config-sample.php ~/wordpress/wp-config.php
   sudo rsync -avP ~/wordpress/ /var/www/html/
   cd /var/www/html
   sudo chown -R www-data:www-data *
    
   sudo mkdir /var/www/html/wp-content/uploads
   sudo chown -R www-data:www-data /var/www/html/wp-content/uploads
    
   export MONGO_HOST=$(ctx instance runtime_properties mysql_ip_address)
    
   #replace default database setting with your setting
   sed -i.bak "s/define('DB_HOST', 'localhost');/define('DB_HOST', '${MYSQL_HOST}');/g" /var/www/html/wp-config.php
   sed -i.bak "s/database_name_here/wordpress/g" /var/www/html/wp-config.php
   sed -i.bak "s/username_here/wordpressuser/g" /var/www/html/wp-config.php
   sed -i.bak "s/password_here/password/g" /var/www/html/wp-config.php

5. Transfering WordPress files to Ubuntu 14.04 LAMP:

   #!/bin/bash -e
    
   cd ~/wordpress
   sudo rsync -avP ~/wordpress/ /var/www/html/
   cd /var/www/html
   sudo chown -R www-data:www-data *
    
   sudo mkdir /var/www/html/wp-content/uploads
   sudo chown -R www-data:www-data /var/www/html/wp-content/uploads

When you want to uninstall your deployment but it’s not possible because there is a running task. Use the following commands:

# to see all events
$ cfy executions list -d wordpress
 
# cancel the event
$ cfy executions cancel -e YOUR_EVENT_ID

After that, you can uninstall your deployment and remove your deployment and blueprint:

cfy executions start -w uninstall -d wordpress --force
cfy deployments delete -d wordpress
cfy blueprints delete -b wordpress