我遵循这个指令http://docs.aws.amazon.com/AmazonECS/latest/developerguide/ECS_GetStarted.html这里是我得到的：
$ aws ecs list-clusters { "clusterArns": [ "arn:aws:ecs:us-east-1:xxx:cluster/MyCluster", "arn:aws:ecs:us-east-1:xxx:cluster/default" ] } 并在EC2实例上：
$ cat /var/log/ecs/ecs-agent.log t=2015-02-02T18:31:45+0000 lvl=info msg="Starting Agent" module=main stack= [agent/agent.go:32] t=2015-02-02T18:31:45+0000 lvl=info msg="Loading configuration" module=main stack=[agent/agent.go:34] t=2015-02-02T18:31:45+0000 lvl=info msg="Connecting to docker daemon" module=main stack=[agent/agent.go:41] t=2015-02-02T18:31:45+0000 lvl=info msg="Connected to docker daemon" module=main stack=[agent/agent.go:43] t=2015-02-02T18:31:45+0000 lvl=info msg="Registering Instance with ECS" module=main stack=[agent/agent.go:50] t=2015-02-02T18:31:45+0000 lvl=crit msg="Could not register" module="api client" err="{\"__type\":\"MissingAuthenticationTokenException\",\"message\":\"Missing Authentication Token\"}" stack="[github.com/aws/amazon-ecs-agent/agent/api/api_client.go:175 agent/agent.go:51]" t=2015-02-02T18:31:45+0000 lvl=eror msg="Error registering" module=main err="{\"__type\":\"MissingAuthenticationTokenException\",\"message\":\"Missing Authentication Token\"}" stack=[agent/agent.go:53] cat /var/log/ecs/ecs-init.log ecs-init [Mon Feb 2 18:31:43 UTC 2015]: pre-start ecs-init [Mon Feb 2 18:31:43 UTC 2015]: Loading Amazon EC2 Container Service Agent from file /var/cache/ecs/ecs-agent.tar ecs-init [Mon Feb 2 18:31:44 UTC 2015]: start ecs-init [Mon Feb 2 18:31:44 UTC 2015]: Starting Amazon EC2 Container Service Agent ecs-init [Mon Feb 2 18:31:45 UTC 2015]: Exited 1
那么应该在哪里设置authentication令牌？
身份validation令牌应该由您用来启动您的容器实例的IAMangular色设置。
您是否通过此过程为Amazon ECS设置了IAMangular色： http : //docs.aws.amazon.com/AmazonECS/latest/developerguide/get-set-up-for-amazon-ecs.html#create-an- IAMangular色
另外，您需要启动具有该IAMangular色的容器实例。
希望这可以帮助。