Understanding misleading error messages

Even if you have learned the different ways to identify a problem, it is not unusual that the error shown does not provide enough information to help you to detect the issue and fix it. Having that in mind, we decided to highlight some very common error messages in this section and also some suggestions to solve the problem.

ImagePullBackOff

This is a common error related to a missing container image. Check out the following lines of code to become familiarized with this kind of issue when you face it:

NAMESPACE   NAME READY STATUS RESTARTS AGE
namespace1  backend-tfmqm 0/1 ImagePullBackOff 0 17h

Here’s a message that may come up when investigating the pod log:

$ oc -n namespace1 logs backend-tfmqm
Error from server (BadRequest): container " backend" in pod " backend-tfmqm" is waiting to start: trying and failing to pull image

Looking at the error message, it is typically linked...