What Does an ImagePullBackOff Error Mean?
The ImagePull part of the ImagePullBackOff error primarily relates to your Kubernetes container runtime unable to pull the image from a private or public container registry. The Backoff part indicates that Kubernetes will continuously pull the image with an increasing backoff delay. Kubernetes will keep on increasing the delay with each attempt until it reaches the limit of five minutes.
Here are some of the possible causes behind your pod getting stuck in the ImagePullBackOff state:
- Image is not defined properly
- Tag may changed/missing/incorrect
- Image name/path not correct
- Image missing/incorrect
- Image may private, and there is a auth failure
- Check pull secret defined or not
- Secret name Is correct?
- Secrets are correct?
- Network issue
- Container registry Rate Limits
How we can Troubleshoot ImagePullBackOff?
Live Demo: