The Linux, Apache, MySQL and PHP-based service layers caching, load balancing, database scaling and code version control features atop an Amazon Web Services foundation.
Fog is a platform-as-a-service offering that, as its name suggests, targets
PHP-based applications. The PHP Fog service, alongside a handful of other new
services, fills what has been a gap in the PaaS market, as the best-known PaaS
offerings target other languages, chiefly Java, Ruby and Python.
became publicly available in May
, layers caching, load balancing, database scaling
and code version control features atop the Amazon Web Services foundation that
the service taps for its underlying infrastructure.
service provides for elasticity by enabling users to spin up multiple Amazon
EC2 (Elastic Compute Cloud) instances to serve customer PHP
applications from behind a load balancer. This scaling, however, does not occur
automatically-users must scale the number of active servers up or down
manually, through the PHP Fog Web console.
subscriber cloud gets its own set of EC2 instances, with MySQL database service
provided from scalable, multitenant MySQL instances. For those who'd prefer
dedicated MySQL instances, PHP Fog supports the use of separate Amazon
Relational Database Service instances.
interact with PHP Fog using the distributed version control system Git. During
my tests, I created and uploaded an ssh key for use with the service. I used
the key to authenticate with PHP Fog for pulling and pushing PHP code with Git.
The service includes a handful of "jumpstart" templates for getting
up and running with popular applications and frameworks. These templates enable
developers to get up and running quickly with WordPress, SugarCRM, Mediawiki,
Joomla and Drupal, as well as with CakePHP, Zend Framework and a few other
Fog's first service tier, called the silver cloud, is based on micro-sized EC2
server instances, can be used to host up to 10 separate applications and is
priced at $29 per server per month. Pricing is prorated per day, so a customer
can opt to scale up or down as needed, and pay accordingly.
Fog offers two additional tiers: gold and platinum. The gold tier is based on
small-sized EC2 instances, supports 30 applications at a time and is priced at
$79 per server per month. The platinum level is based on large-sized EC2
instances, supports 125 applications and is priced at $249 per server per
also a free, shared cloud option, which supports one application, offers no
additional server scaling and must be upgraded to a paid tier after six months.
Still, the free tier is worth checking out for those interested in trying out