Access denied when pulling Docker image from a repository I own - docker

Question

I built a Docker image that I pushed to Docker Hub under my account and removed locally after. But when I try to pull it, it throws the following error:
Error response from daemon: pull access denied for mightyspaj/dockerfile-assignment-1, repository does not exist or may require 'docker login'
I'm logged into the same account that owns the repository for this image and can perform other tasks (such as pushing) perfectly fine. The repository also definitely exists on Docker Hub, yet it fails when I try to pull it.
I've tried the following things:
Logging out of my account and back in again
Renaming config.json and regenerating it
Running an isolated Docker container with docker run -it --rm -v /var/run/docker.sock:/var/run/docker.sock:ro docker sh, then logging into my account and attempting to pull the image
Deleting and recreating the repository
All of these things still produce the same error. I'm baffled.
To note, both my client and engine versions are 17.12.0-ce. My OS is Ubuntu 17.10 (64-bit).
Console output
docker login
-> % docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: mightyspaj
Password:
Login Succeeded
docker tag
-> % docker tag dockerfile-assignment-1:latest mightyspaj/dockerfile-assignment-1
docker push
-> % docker push mightyspaj/dockerfile-assignment-1
The push refers to repository [docker.io/mightyspaj/dockerfile-assignment-1]
8427a8e6a29f: Pushed
655a921743e8: Pushed
8aa44edb7524: Pushed
60f1a2dc4cd8: Mounted from library/node
9185fe936b87: Mounted from library/node
e53f74215d12: Mounted from library/node
latest: digest: sha256:6c68220ba84f13d0229ef4458f22369410bb98764b908a75be0849c3003de160 size: 1582
docker image rm
-> % docker image rm mightyspaj/dockerfile-assignment-1
Untagged: mightyspaj/dockerfile-assignment-1:latest
Untagged: mightyspaj/dockerfile-assignment-1#sha256:6c68220ba84f13d0229ef4458f22369410bb98764b908a75be0849c3003de160
docker image pull
-> % docker image pull mightyspaj/dockerfile-assignment-1
Using default tag: latest
Error response from daemon: pull access denied for mightyspaj/dockerfile-assignment-1, repository does not exist or may require 'docker login'

Answer 1

I could fix the same issue only when I made the repository public. Make sure the repository is public then this is the set of instructions I followed in command line:
Once logout from docker hub and login again.
1- docker logout
2- docker login --username=YOURUSERNAME
Enter password when asked
3- docker pull repositoryName"/"imageName[:tag]
if "tag" is not included the default value will be "latest".
Then check the images by docker images command to check if its been pulled.
After pulling is done I made the repository private again.

Answer 2

This solution is only valid on private docker repositories!!
First try to login on your private repo e.g:
docker login dockerrepo.example.com
Then
If you build new image with dockerfile based on image in your private repository then you must prefix your base image with private repository url:
FROM PRIVATE_REPO_URL + IMAGE_INFO
sample:
PRIVATE_REPO_URL --> dockerrepo.example.com
BASE_IMAGE --> samples/java/jdk:1.6
Your dockerfile look like this:
FROM dockerrepo.example.com/samples/java/jdk:1.6