AppSpec
AppSpec is the contents of the deployment process executed by AWS CodeDeploy. It is a file composed of YAML format that describes specific contents, what kind of things to handle in the deployment. In using CodeDeploy, it is very important to specify what are to be set in AppSpec.
The name of the AppSpec file must be appspec.yml and be placed in the root directory. If this requirement is not met, the deployment fails. Also, if there is an AppSpec file, you can make the deployment content including it into a compressed file in Zip.
file composition
version: 0.0 os: operating-system-name files: source-destination-files-mappings permissions: permissions-specifications hooks: deployment-lifecycle-event-mappings
start -> applicationstop -> downloadbundle -> beforeinstall -> install -> afterinstall -> applicationstart -> validateservice -> end
