Chapter 7, Creating ECS Clusters

1. False – EC2 autoscaling groups only support dynamic IP addressing.
2. The Base64 encoding.
3. Use the AWS::Region pseudo-parameter.
4. False – the Ref intrinsic function can refer to both resources and parameters in a CloudFormation template.
5. You need to first run cfn-init to download the CloudFormation Init metadata, and then cfn-signal to notify CloudFormation the result of running cfn-init.
6. You need to ensure that you are writing the name of the ECS cluster that each instance should join to /etc/ecs/ecs.config in the UserData script – for example, echo "ECS_CLUSTER=<cluster-name>" > /etc/ecs/ecs.config.

7. False – this command is only used to create stacks.  You should use the aws cloudformation deploy command to create and update stacks as required.
8. The ECS agent...