# Functions
NewService returns a new Service struct, and initialize aws ecs API client.
NewTask returns a new Task struct, and initialize aws ecs API client.
NewTaskDefinition initializes aws ecs API client, and returns a task definition struct.
# Structs
Image has repository and tag string of docker image.
Service has target ECS information, client of aws-sdk-go, tasks information and timeout seconds.
Task has target ECS information, client of aws-sdk-go, command and timeout seconds.
TaskDefinition has image and task definition information.