问题
I went through the firstRun steps here (AWS login required).
I have uploaded a docker image to the ECR and the cluster launches successfully, all steps succeed (ECS status - 4 of 4 complete and EC2 instance status - 14 of 14 complete).
There is no instance attached to the cluster although it is running (see screenshots). What am I doing wrong?
回答1:
The permissions were missing, or in other words, EMR_EC2_DefaultRule wasn't a AmazonEC2ContainerServiceforEC2Role.
It's explained here.
Would've expected the setup to fail if the role does not grant enough permissions for the EC2 instance to actually connect to the cluster.
来源：https://stackoverflow.com/questions/42587923/aws-ecs-firstrun-not-showing-ec2-instance