Download - Automating with CloudFormation
CloudFormationAWS Resource Automation
Caveats
• Not affiliated with AWS • No expert in AWS • Not extensive cover of CF
World of AWS
Before We Start
• AWS Account • AWS Management Console • IAM Keys • AWS CLI • Boto (Python)
What is CloudFormation?
a template (config/manifest) in json
What is CloudFormation?
Anatomy Of A CF Template
Parameters
Mappings
Resources
Outputs
The Basic Sekeleton
Intrinsic Functions
Fn::Base64 Fn::FindInMap Fn::GetAtt Fn::GetAZs Fn::Join Fn::Select Ref
Condition Functions
Fn::And Fn::Equals Fn::If Fn::Not Fn::Or
Walkthroughhttp://bit.ly/phpmelb-aws-cf-auto
Other Cool Stuff
• AWS::CloudFormation::CustomResource • AWS::CloudFormation::WaitCondition • AWS::CloudFormation::WaitConditionHandle • CloudFormation Helper Scripts
• cfn-init • cfn-get-metadata • cfn-signal
These are handy
• Instances Profiles • curl http://169.254.169.254/latest/meta-data/ • Cumulus (https://github.com/cotdsa/cumulus)
How Do We Automate?
A Typical Scenario
• Already has a production environment • Possible have RDS or DB instance • Plenty of application servers • Deployment is difficult
Script Build First
Then CloudFormation
Deploying
Deployment Pipeline
Deployment Pipeline
Quick Demo
Why Is This Important?
• Highly auditable • [Cruelly] consistent & predictable • Conveniently reproducible !
• Immutable Servers • Avoids EOL of Instances • Reduces RTO
