Failed to create pod sandbox

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

Back-off restarting fail~~

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: pod-1Namespace: defaultPriority: 0Service Account: defaultNode: k8s-worker2/192.168.56.32Start Time: Tue, 02 Dec 2025 14:35:18 +0900Labels: app=podAnnotations: cni.projectcalico.org/containerID: f481b42820a9c7657b8eb8f412368be4c15b157e097b4ca850b2df233670037d cni.projectcalico.org/podIP: 20.110.126.26/32 cni.projectcalico.org/podIPs: 20.110.126.26/32Status: RunningIP: 20.110.126.26IPs: IP: 20.110.126.26Containers: container: Container ID: containerd://c002903cd4131076d25f4d3c626b82ddb39abfe0eb7c3dfe1ae191e105e3820b Image: tmkube/app Image ID: docker.io/tmkube/app@sha256:ead112aa679e29092b472bb1c8e3836a92c380a3f33c6805dee4c70e716eb6d7 Port: 8080/TCP Host Port: 0/TCP State: Waiting Reason: CrashLoopBackOff Last State: Terminated Reason: Error Exit Code: 1 Started: Tue, 02 Dec 2025 14:36:10 +0900 Finished: Tue, 02 Dec 2025 14:36:10 +0900 Ready: False Restart Count: 3 Environment: Mounts: /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-gjfv7 (ro)Conditions: Type Status Initialized True Ready False ContainersReady False PodScheduled True Volumes: kube-api-access-gjfv7: Type: Projected (a volume that contains injected data from multiple sources) TokenExpirationSeconds: 3607 ConfigMapName: kube-root-ca.crt ConfigMapOptional: DownwardAPI: trueQoS Class: BestEffortNode-Selectors: Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s node.kubernetes.io/unreachable:NoExecute op=Exists for 300sEvents: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 75s default-scheduler Successfully assigned default/pod-1 to k8s-worker2 Normal Pulled 69s kubelet Successfully pulled image "tmkube/app" in 1.676659789s (1.676680237s including waiting) Normal Pulled 67s kubelet Successfully pulled image "tmkube/app" in 1.539580674s (1.539588122s including waiting) Normal Pulled 50s kubelet Successfully pulled image "tmkube/app" in 1.560584878s (1.560589166s including waiting) Normal Pulling 21s (x4 over 71s) kubelet Pulling image "tmkube/app" Normal Created 20s (x4 over 69s) kubelet Created container container Normal Started 20s (x4 over 69s) kubelet Started container container Normal Pulled 20s kubelet Successfully pulled image "tmkube/app" in 1.573245763s (1.573250142s including waiting) Warning BackOff 4s (x6 over 67s) kubelet Back-off restarting failed container container in pod pod-1_default(5f6119b4-6760-449a-9456-fd7a59a3317a)이러한 메시지를 받았습니다.