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AWS CloudFormation gives developers and systems administrators an easy way to create and manage a collection of related AWS resources, provisioning and updating them in an orderly and predictable fashion.
You can use AWS CloudFormation’s sample templates or create your own templates to describe the AWS resources, and any associated dependencies or runtime parameters, required to run your application. You don’t need to figure out the order for provisioning AWS services or the subtleties of making those dependencies work. CloudFormation takes care of this for you. After the AWS resources are deployed, you can modify and update them in a controlled and predictable way, in effect applying version control to your AWS infrastructure the same way you do with your software.
You can deploy and update a template and its associated collection of resources (called a stack) by using the AWS Management Console, AWS Command Line Interface, or APIs. CloudFormation is available at no additional charge, and you pay only for the AWS resources needed to run your applications.
AWS CloudFormation supports a wide range of AWS resources, allowing you to build a highly available, reliable, and scalable AWS infrastructure for your application needs. AWS CloudFormation currently supports resources in the following AWS services:
- Auto Scaling
- Amazon CloudFront
- AWS CloudWatch
- Amazon DynamoDB
- Amazon EC2
- Amazon ElastiCache
- AWS Elastic Beanstalk
- AWS Elastic Load Balancing
- AWS Identity and Access Management
- Amazon RDS
- Amazon Redshift
- Amazon Route 53
- Amazon S3
- Amazon SimpleDB
- Amazon SNS
- Amazon SQS
- Amazon VPC
CloudFormation makes it easy to organize and deploy a collection of AWS resources and lets you describe any dependencies or special parameters to pass in at runtime. You can use one of the many CloudFormation sample templates -- either verbatim or as a starting point -- or create your own.
AWS CloudFormation comes today with the following ready-to-run sample templates:
- WordPress (blog)
- Tracks (project tracking)
- Gollum (wiki used by GitHub)
- Microsoft SharePoint®
- Microsoft Windows Server®
- Drupal (content management)
- Joomla (content management)
- Insoshi (social apps)
- Redmine (project management)
- Many simple templates that show the use of individual AWS resources and features
A template can be used repeatedly to create identical copies of the same stack (or to use as a foundation to start a new stack). You can capture and control region-specific infrastructure variations such as Amazon EC2 AMIs, as well as Amazon Elastic Block Store (EBS) and Amazon RDS snapshot names.
Templates are simple JSON-formatted text files that can be placed under your normal source control mechanisms, stored in private or public locations such as Amazon S3, and exchanged via email. With AWS CloudFormation, you can "open the hood," to see exactly which AWS resources make up a stack. You retain full control and have the ability to modify any of the AWS resources created as part of a stack.
To create the infrastructure you want, you enumerate what AWS resources, configuration values, and interconnections you need in a template and then let AWS CloudFormation do the rest with a few simple clicks in the AWS Management Console, one command by using the AWS command line interface, or a single requests by calling the APIs. You won’t have to recall the details of how to create and interconnect the respective AWS resources via their service APIs; AWS CloudFormation does this for you. You also don’t need to write a template from scratch if you start with one of the many sample templates that come with AWS CloudFormation.
You can use parameters to customize aspects of your template at run time, when the stack is built. For example, you can pass the RDS database size, EC2 instance types, database, and web server port numbers to AWS CloudFormation when you create a stack. You can also use a parameterized template to create multiple stacks that may differ in a controlled way. For example, your Amazon EC2 instance types, Amazon CloudWatch alarm thresholds, and Amazon RDS read-replica settings may differ among AWS regions if you receive more customer traffic in the US than in Europe. You can use template parameters to tune the settings and thresholds in each region separately and still be sure that the application is deployed consistently across the regions.
You can integrate AWS CloudFormation with the development and management tools of your choice.
AWS CloudFormation publishes progress events through the Amazon Simple Notification Service (SNS). With SNS, you can track stack creation and deletion progress via email and integrate with other processes programmatically.
AWS CloudFormation is available at no additional charge. You will be billed only the normal rates for the AWS resources that AWS CloudFormation creates and your application uses.