From the course: Debugging Kubernetes
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Solving network-related ImagePullBackOff errors - Kubernetes Tutorial
From the course: Debugging Kubernetes
Solving network-related ImagePullBackOff errors
- [Instructor] One container down, two to go. Let's rerun kubectl describe pods test-app to revisit the status of the containers in our pod. Earlier, we fixed the typo in image container. Now we're going to take a look at unreachable registry container to see how we can debug images that aren't in invalid or unreachable registries. So we can see that this image is pulling from this dockerrrrrrrr.io registry and it's looking for the busy box image in that registry, which is the valid name of a registry, but this stuff over here is not right, but how can we confirm that? We can confirm that by running several network tests to tell us whether this DNS record is a valid record and confirming whether it's a valid registry. We'll look into network and DNS troubleshooting later in this course. Now, it is highly likely that the author of this pod really just wanted to use docker.io. Maybe they had a stuck key in their MacBook or something. So we're going to go ahead and just change that to…
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Contents
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(Locked)
Troubleshooting Pods that won't fit in the cluster7m 15s
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Debugging missing Pod tolerations and taints6m 52s
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Conquering Pods with pending dependencies9m 36s
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Debugging ImagePullBackOff errors for non-existent images5m 12s
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Solving network-related ImagePullBackOff errors1m 33s
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Solving ImagePullBackOff errors related to private registries12m 2s
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Debugging CrashLoopBackOff errors and crashing Pods8m 39s
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Debugging failing liveness probes6m 25s
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Solving failing Pod readiness checks4m 43s
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Solving slow Pods13m 2s
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Challenge: A troublemaking deployment1m
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Solution: A troublemaking deployment7m 7s
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