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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)
A Typical Scenario
• Already has a production environment • Possible have RDS or DB instance • Plenty of application servers • Deployment is difficult
Why Is This Important?
• Highly auditable • [Cruelly] consistent & predictable • Conveniently reproducible !
• Immutable Servers • Avoids EOL of Instances • Reduces RTO