Registered container instances 0 AWS ECS

Question

I created a cluster on Amazon ECS. It was successful but my Registered container instances is zero. I can't create a tasks because my cluster doesn't a container have an instance.

What to do? Hope you can help me. Thank you.

Answer 1

EC2 instances won't be visible out of the box in the ECS cluster just because they exist in your account. They need to be made join the cluster. First you'd need to use an ECS-optimized AMI (unless you want to build one on your own which is possible but..) and then you'd need to customize the launch to tell it which cluster to join. See this doc page .

You have 3 options:

• re-launch one (or more) new EC2 instances following the doc above
• re provision a cluster using the wizard and select that you want to deploy EC2 instances as well (this wizard will just to everything for you). Since you have an empty cluster you probably selected to deploy a cluster with no instances in the wizard
• [ best ] re-launch your task using the Fargate launch type. Fargate is an AWS managed engine that allows you to launch containers/tasks without having customer provisioned infrastructure (ie EC2 instances).