kubectl delete pod --all -n calico-system 해당명령어로 해결했습니다.

Failed to create pod sandbox

강사님이랑 똑같이 했는데 다만 맥북이여서 방법은 다르지만 알려주신 가이드대로 했습니다.. 다시설치해야 할까요??

Back-off restarting fail~~

[root@k8s-master ~]# kubectl describe pod pod-1 -n defaultName: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; pod-1Namespace:&nbsp; &nbsp; &nbsp; &nbsp; defaultPriority: &nbsp; &nbsp; &nbsp; &nbsp; 0Service Account:&nbsp; defaultNode: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; k8s-worker2/192.168.56.32Start Time: &nbsp; &nbsp; &nbsp; Tue, 02 Dec 2025 14:35:18 +0900Labels: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; app=podAnnotations:&nbsp; &nbsp; &nbsp; cni.projectcalico.org/containerID: f481b42820a9c7657b8eb8f412368be4c15b157e097b4ca850b2df233670037d&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cni.projectcalico.org/podIP: 20.110.126.26/32&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; cni.projectcalico.org/podIPs: 20.110.126.26/32Status: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; RunningIP: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 20.110.126.26IPs:&nbsp; IP:&nbsp; 20.110.126.26Containers:&nbsp; container:&nbsp; &nbsp; Container ID: &nbsp; containerd://c002903cd4131076d25f4d3c626b82ddb39abfe0eb7c3dfe1ae191e105e3820b&nbsp; &nbsp; Image:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; tmkube/app&nbsp; &nbsp; Image ID: &nbsp; &nbsp; &nbsp; docker.io/tmkube/app@sha256:ead112aa679e29092b472bb1c8e3836a92c380a3f33c6805dee4c70e716eb6d7&nbsp; &nbsp; Port: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8080/TCP&nbsp; &nbsp; Host Port:&nbsp; &nbsp; &nbsp; 0/TCP&nbsp; &nbsp; State:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Waiting&nbsp; &nbsp; &nbsp; Reason: &nbsp; &nbsp; &nbsp; CrashLoopBackOff&nbsp; &nbsp; Last State: &nbsp; &nbsp; Terminated&nbsp; &nbsp; &nbsp; Reason: &nbsp; &nbsp; &nbsp; Error&nbsp; &nbsp; &nbsp; Exit Code:&nbsp; &nbsp; 1&nbsp; &nbsp; &nbsp; Started:&nbsp; &nbsp; &nbsp; Tue, 02 Dec 2025 14:36:10 +0900&nbsp; &nbsp; &nbsp; Finished: &nbsp; &nbsp; Tue, 02 Dec 2025 14:36:10 +0900&nbsp; &nbsp; Ready:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; False&nbsp; &nbsp; Restart Count:&nbsp; 3&nbsp; &nbsp; Environment:&nbsp; &nbsp; <none>&nbsp; &nbsp; Mounts:&nbsp; &nbsp; &nbsp; /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-gjfv7 (ro)Conditions:&nbsp; Type&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Status&nbsp; Initialized &nbsp; &nbsp; &nbsp; True&nbsp;&nbsp; Ready &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; False&nbsp;&nbsp; ContainersReady &nbsp; False&nbsp;&nbsp; PodScheduled&nbsp; &nbsp; &nbsp; True&nbsp;Volumes:&nbsp; kube-api-access-gjfv7:&nbsp; &nbsp; Type:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Projected (a volume that contains injected data from multiple sources)&nbsp; &nbsp; TokenExpirationSeconds:&nbsp; 3607&nbsp; &nbsp; ConfigMapName: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kube-root-ca.crt&nbsp; &nbsp; ConfigMapOptional: &nbsp; &nbsp; &nbsp; <nil>&nbsp; &nbsp; DownwardAPI: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; trueQoS Class: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; BestEffortNode-Selectors:&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <none>Tolerations: &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; node.kubernetes.io/not-ready:NoExecute op=Exists for 300s&nbsp;&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; node.kubernetes.io/unreachable:NoExecute op=Exists for 300sEvents:&nbsp; Type &nbsp; &nbsp; Reason &nbsp; &nbsp; Age&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; From &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Message&nbsp; ---- &nbsp; &nbsp; ------ &nbsp; &nbsp; ---- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; ---- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; -------&nbsp; Normal &nbsp; Scheduled&nbsp; 75s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; default-scheduler&nbsp; Successfully assigned default/pod-1 to k8s-worker2&nbsp; Normal &nbsp; Pulled &nbsp; &nbsp; 69s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Successfully pulled image "tmkube/app" in 1.676659789s (1.676680237s including waiting)&nbsp; Normal &nbsp; Pulled &nbsp; &nbsp; 67s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Successfully pulled image "tmkube/app" in 1.539580674s (1.539588122s including waiting)&nbsp; Normal &nbsp; Pulled &nbsp; &nbsp; 50s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Successfully pulled image "tmkube/app" in 1.560584878s (1.560589166s including waiting)&nbsp; Normal &nbsp; Pulling&nbsp; &nbsp; 21s (x4 over 71s)&nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Pulling image "tmkube/app"&nbsp; Normal &nbsp; Created&nbsp; &nbsp; 20s (x4 over 69s)&nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Created container container&nbsp; Normal &nbsp; Started&nbsp; &nbsp; 20s (x4 over 69s)&nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Started container container&nbsp; Normal &nbsp; Pulled &nbsp; &nbsp; 20s&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Successfully pulled image "tmkube/app" in 1.573245763s (1.573250142s including waiting)&nbsp; Warning&nbsp; BackOff&nbsp; &nbsp; 4s (x6 over 67s) &nbsp; kubelet&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Back-off restarting failed container container in pod pod-1_default(5f6119b4-6760-449a-9456-fd7a59a3317a)이러한 메시지를 받았습니다.&nbsp;

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