AWSTemplateFormatVersion: '2010-09-09' Description: An example task definition which has a custom entrypoint and command that overrides the default container image entrypoint Resources: HeyLoadTestTaskDefinition: Type: AWS::ECS::TaskDefinition Properties: Family: hey-load-test Cpu: 256 Memory: 128 ContainerDefinitions: - Name: hey # Example URI of the image from the Dockerfile above Image: 012345678910.dkr.ecr.us-west-2.amazonaws.com/test-suite/hey:latest Essential: true # Keep the existing entrypoint but just pass a custom command Command: # Send 100 concurrent requests at a time - '-c' - '100' # Send 100,000 total requests - '-n' - '100000' # URI to send to - http://your-uri-here