Amazon Elastic Container Registry

Amazon Elastic Container Registry is used to store docker images in Amazon AWS cloud.

To create a repository using awscli command line tool, run

aws ecr create-repository --repository-name sok-repository --region ap-southeast-1

In Amazon AWS console, you can see the newly created repository by going to “Elastic Container Registry” page in the region where you created the repository.

https://ap-southeast-1.console.aws.amazon.com/ecr/repositories?region=ap-southeast-1

To see the details from command line, run

aws ecr describe-repositories --region ap-southeast-1

From the command, you will see repositoryUri, this is used to push your docker images.

I have following docker images

[root@instance-20210426-0136 ~]# docker images
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
sevrerok/okapache   1.2                 c3832b03b548        2 hours ago         214MB
sevrerok/okapache   1.1                 d1a86f0eb69a        2 hours ago         214MB
ubuntu              20.04               7e0aa2d69a15        2 days ago          72.7MB
sevrerok/okapache   1.0                 7e0aa2d69a15        2 days ago          72.7MB
[root@instance-20210426-0136 ~]# 

I need to push the image sevrerok/okapache:1.2 to Amazon ECR, for this first tag the docker image with repository name.

docker tag sevrerok/okapache:1.2 497940214440.dkr.ecr.ap-southeast-1.amazonaws.com/sok-repository

Now docker images will show

[root@instance-20210426-0136 ~]# docker images
REPOSITORY                                                         TAG                 IMAGE ID            CREATED             SIZE
sevrerok/okapache                                                  1.2                 c3832b03b548        2 hours ago         214MB
497940214440.dkr.ecr.ap-southeast-1.amazonaws.com/sok-repository   latest              c3832b03b548        2 hours ago         214MB
sevrerok/okapache                                                  1.1                 d1a86f0eb69a        2 hours ago         214MB
ubuntu                                                             20.04               7e0aa2d69a15        2 days ago          72.7MB
sevrerok/okapache                                                  1.0                 7e0aa2d69a15        2 days ago          72.7MB
[root@instance-20210426-0136 ~]# 

Login to ECR

aws ecr get-login

It will display command you need to login to ECR using docker. Run the command to login to ECR.

To push the docker image to ECR, run

docker push 497940214440.dkr.ecr.ap-southeast-1.amazonaws.com/sok-repository

Now the image is pushed to ECR, you will be able to see it using AWS console or awscli

[root@instance-20210426-0136 ~]# aws ecr list-images --repository-name sok-repository
{
    "imageIds": [
        {
            "imageTag": "latest", 
            "imageDigest": "sha256:3cb5b8ef33bf913018f28dc3adf93b96c66667b517fe800a99bd0defd9dc6130"
        }
    ]
}
[root@instance-20210426-0136 ~]# 

To delete the ECR repo, use following command

aws ecr delete-repository --repository-name sok-repository --region ap-southeast-1 --force

See AWS