amazon-web-servicesamazon-ec2

Can't connect to the　http://169.254.169.254/ from the container of AWS_VPC

I have task definition which uses AWS_VPC mode.

My environment is like this,

EC2 (on private with nat subnet) -> ECS Service -> Container (with AWS_VPC)

However, from container, I can't connect to the http://169.254.169.254 to get the EC2 information.

If I changed the mode to HOST, it can connect to the http://169.254.169.254

How can I fix this?

Solution

  • Use the ECS Task Metadata Endpoint from within your containers, instead of trying to use the EC2 Instance Metadata Endpoint.