starting the container ( Started container my-name).starting the image in the form of creating a container ( Created container my-name).starts pulling the image ( Successfully pulled image " ubuntu:latest").the pod was assigned to a node ( Successfully assigned test-kube/challenge-7b97fd8b7f-cdvh4 to minikube).Reading the “ Events” section from top to bottom tells us: This will tell you what Kubernetes is doing here. The first thing, that we should focus on this output is the “ Events“. We got the description of the pod “ challenge-7b97fd8b7f-cdvh4“. Warning BackOff 3s (x93 over 20m) kubelet, minikube Back-off restarting failed container Normal Pulling 18m (x5 over 20m) kubelet, minikube Pulling image "ubuntu:latest" Normal Started 19m (x4 over 20m) kubelet, minikube Started container my-name Normal Created 19m (x4 over 20m) kubelet, minikube Created container my-name Normal Pulled 19m (x4 over 20m) kubelet, minikube Successfully pulled image "ubuntu:latest"
Normal Scheduled default-scheduler Successfully assigned test-kube/challenge-7b97fd8b7f-cdvh4 to minikube Tolerations: /not-ready:NoExecute for 300s Type: Secret (a volume populated by a Secret) var/run/secrets/kubernetes.io/serviceaccount from default-token-5sl7g (ro) Please refer the below config to understand the point that I just said. The default value for restartPolicy is “ Always“. Its values are Always, OnFailure, and Never which applies to all containers in a pod. You can refer the below example for restartPolicy of the pod. Please note that failed containers are restarted by the Kubelet and is restarted with an exponentially back-off delay (10s, 20, 40s, and so on) capped at 5 minutes and is reset after 10 minutes of successful execution. If you are a beginner on Kubernetes, I would suggest you read the post: Introduction to Kubernetes World What is Kuberenetes CrashLoopBackOff Error?Ī CrashloopBackOff means that you have a pod which is starting, crashing, and again starting, and then crashing. Note: I would also suggest you read this thoroughly so that you can understand each and every step clearly.
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In this post, I will explain how to “Troubleshoot pod CrashLoopBackOff error” in detail so that you can resolve this error whenever you face such issue in future. One failure status/state is CrashLoopBackOff. Please note that your pod can fail in all kinds of ways. Many of you have already come across such a situation where you are creating a pod but it goes to “CrashLoopBackOff” state and you find difficulty in fixing it.