How do I get my IP address from inside an ECS container running with the awsvpc network mode?

Question

From a regular ECS container running with the bridge mode, or from a standard EC2 instance, I usually run

curl http://169.254.169.254/latest/meta-data/local-ipv4

to retrieve my IP.

In an ECS container running with the awsvpc network mode, I get the IP of the underlying EC2 instance which is not what I want. I want the address of the ENI attached to my container. How do I do that?

Answer 1

From a regular ECS container running with the bridge mode, or from a standard EC2 instance, I usually run

curl http://169.254.169.254/latest/meta-data/local-ipv4

to retrieve my IP.

In an ECS container running with the awsvpc network mode, I get the IP of the underlying EC2 instance which is not what I want. I want the address of the ENI attached to my container. How do I do that?

Answer 2

From a regular ECS container running with the bridge mode, or from a standard EC2 instance, I usually run

curl http://169.254.169.254/latest/meta-data/local-ipv4

to retrieve my IP.

In an ECS container running with the awsvpc network mode, I get the IP of the underlying EC2 instance which is not what I want. I want the address of the ENI attached to my container. How do I do that?

Answer 3

import * as publicIp from 'public-ip';

const publicIpAddress = await publicIp.v4(); // your container's public IP