I'm trying to setup a scheduled task with ECS Fargate.Task was dockerized and will be run through AWS ECS with Fargate. Unfortunately the service I want to run needs to access an API of a partner where the IP needs to be whitelisted. I see that for each execution of the task with Fargate a new ENI with an different IP is assigned.

How is it possible to assign a static IP to a AWS ECS Fargate Task?

CodePudding user response：

In order to assign a Static IP on your AWS Fargate task, you will have to create a static IP address (AWS calls this elastic IP) that will serve as the origin address of traffic originating your VPC from network outsiders point of view. To implement this:

You need the following

• A VPC
• 1x Private Subnet
• 1x Public Subnet
• 1x Internet Gateway attached to public subnet
• An elastic IP (Will serve as static IP of all resources inside the private subnets)
• 1x NAT Gateway
• A route table attached to private subnet with route 0.0.0.0/0 pointing to the NAT Gateway
• A route table attached to public subnet with route 0.0.0.0/0 pointing to the internet gateway

You will then need to make sure that:

• Your ECS Fargate task is using the VPC mentioned above
• And that the private subnet(s) mentioned above is selected as the service task placement

If my explanation is still confusing, you could try giving this guide a read.