DeployBlueGreenAction class to handle CodeDeploy deployments

[joaoricardo000]

• Add a new option for ecs deploy function.
• Code Deploy Application Name --cd-application-name AppECS-service-name
• If --cd-application-name is given, a DeployBlueGreenAction instance is created to handle the creation and monitoring of the CodeDeploy deployment process.

Example call/output:

$ ecs deploy cluster-name service-name --task task-def-name --image docker_image --cd-application-name AppECS-cd-service-name  
  
Deploying based on task definition: task-def-name:99

Updating task definition
Changed image of container "container-name" to: "docker_image" (was: "old_docker_image")

Creating new task definition revision
Successfully created revision: 100

Updating service

Deployment created: d-LAAKLJFF0
	https://us-east-1.console.aws.amazon.com/codesuite/codedeploy/deployments/d-LAAKLJFF0

Successfully changed task definition to: task-def-name:100

Deploying new task definition..............................................................................
Deployment successful

Deregister task definition revision
Successfully deregistered revision: 99

Related to #120

[ianrodrigues]

@joaoricardo000 Will it always be us-east-1? Or should it be the same region as you are deploying to?

[fabfuel]

I agree, this needs to be configurable, like the regions are in the deploy, scale, etc. commands.
In addition this should be configured and falling back to a default inside the Action, not in the CLI controller, please.

[fabfuel]

Does this imply, that a task definition does not have more than one containers?

[fabfuel]

Actually this like makes the class to a "codedeploy-deploy" tool, rather then an "ecs-deploy" too.
I'm still thinking, if this use-case might be a bit out of the scope of the project.

[fabfuel]

I agree, this needs to be configurable, like the regions are in the deploy, scale, etc. commands.
In addition this should be configured and falling back to a default inside the Action, not in the CLI controller, please.

[quinn]

Anything I can do to get this over the finish line? or, another option would be to have a flag to disable the deploy after updating the task def.