Docker push to ECR failing

Question

Trying to learn ECR\ECS. I created a basic Web Site and built a Docker Image from it. I then tested it externally and it displays the Hello World page. Having an issue trying to push to my Docker Image to my Repository located in ECR which I confirmed is there. See below

[ec2-user@ip-172-X-X-X ~]$ docker images
REPOSITORY                                              TAG       IMAGE ID       CREATED        SIZE
XXXXXXXXXX.dkr.ecr.region.amazonaws.com/hello-world   latest    c9600a72d527   2 days ago     205MB
hello-world                                             latest    c9600a72d527   2 days ago     205MB
public.ecr.aws/docker/library/ubuntu                    18.04     f9a80a55f492   4 months ago   63.2MB

[ec2-user@ip-172-X-X-X ~]$ docker push XXXXXXXX.dkr.ecr.us-east-1.amazonaws.com/hello-world:latest
The push refers to repository [584817139776.dkr.ecr.us-east-1.amazonaws.com/hello-world]
An image does not exist locally with the tag: 584817139776.dkr.ecr.us-east-1.amazonaws.com/hello-world

Answer

Looking at the error message, I can see that it is informing that the image `584817139776.dkr.ecr.us-east-1.amazonaws.com/hello-world:latest` is not available locally and this is a requirement.

Checking the command above the error message, I could see that the image URI is a bit different. It is showing `dkr.ecr.region` instead of `dkr.ecr.us-east-1`.

I'd recommend you to use `docker tag` command to rename the image to use the expected URI.

Answer

Did you tag your image before trying to push to ECR? The error leads me to think you forgot to tag the image before pushing https://docs.aws.amazon.com/AmazonECR/latest/userguide/docker-push-ecr-image.html#:~:text=Tag%20your%20image%20with%20the%20Amazon%20ECR%20registry%2C

Below are the steps to push an image to ECR: https://docs.aws.amazon.com/AmazonECR/latest/userguide/docker-push-ecr-image.html

Below are the steps to push an image to ECR:
https://docs.aws.amazon.com/AmazonECR/latest/userguide/docker-push-ecr-image.html

Docker push to ECR failing

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