I am writing a terraform script for creating a ECS auto scaling cluster. I have created a cluster and added ec2 container instances in to it.My task definition file contains a image that is from a Private docker repository.I go through the aws official documentation and find a page for Private Registry Authentication and tried both of the ways as described there.
- using dockercfg
- the docker way
I put my ecs.config file in the S3 bucket and during the instance boot time I passed the user data as
#!/bin/bash
yum install -y aws-cli
aws s3 cp s3://<my_bucket_name>/ecs.config /etc/ecs/ecs.config
In my second approach I passed the used data as
echo "ECS_ENGINE_AUTH_TYPE=docker" >>/etc/ecs/ecs.config
echo "ECS_ENGINE_AUTH_DATA={"https://index.docker.io/v1/":{"username":"my_name","password":"my_password","email":"email@example.com"}}" >>/etc/ecs/ecs.config
I find the data in my /etc/ecs/ecs.config when login onto my container instance but when I try to pull the image manually I shows me an error that no image found.
Then I try docker login command there and enter my credentials manually and try to pull that image again and eventually it was successful.
I am not sure not whether is there a way to achieve private docker registry authentication in ecs optimized image automatically by user data or not or If am doing something wrong.
Please help me out in this.
