This project sets up an ECS Cluster and creates a task definition.
Two containers (main and sidecar) are added to the task definition and a volume is defined. The sidecar will launch first and pull a parameter from AWS, write it to a shared volume and then terminate. The main container just reads the secret from the shared volume, outputs it and then terminates. The main container depends on the successful termination of the sidecar to make sure the parameter is available when it launches.
In order for this project to work, a parameter must be created in AWS Systems
Manager Parameter Store in the same account where you deploy the project to.
The secret must be named /super/fancy/parameters. The example project will
log the parameter to the console, so do not put any sensitive information into
it.
A complete overview over the mechanisms is covered in a blog post