This article covers how to resolve the ImagePullBackOff Kubernetes error. In fact, ImagePullBackOff error typically shows up when the kubelet agent instructs the container runtime and can't pull the image from the container registry for various reasons.
Main causes behind your pod getting stuck in the ImagePullBackOff state:
- Image doesn't exist.
- Image tag or name is incorrect.
- Image is private, and there is an authentication failure.
- Network issue.
- Registry name is incorrect.
- Container registry rate limits.