3: appspec.yml

How to run custom actions during deploy?

• Appspec file; lifecycle

What’s the appspec.yml?

• Manages each deployment as a series of lifecycle event hooks
  • YAML or JSON format
• hooks = run custom code at specific times during deploy

What’s defined in the appspec?

• Version # (0.0)
• OS (e.g. linux)
• Files
  • Copied to compute on deployment
  • Src: Location in the revision
  • Dest: Location on the compute
• Hooks, e.g.:
  • BeforeInstall
  • AfterInstall
  • ApplicationStart
  • ValidateService
  • AfterAllowTraffic
  • See more at https://docs.aws.amazon.com/codedeploy/latest/userguide/reference-appspec-file-structure-hooks.html
• Deploying to different outlets (lambda, ecs) require different appspec