Kubernetes, Docker, and Containerd Frequently Used Commands

systemctl status kubelet

journalctl -xeu kubelet

kubectl get events --all-namespaces --sort-by='.metadata.creationTimestamp'

kubectl logs <POD_NAME> -n <NAMESPACE>

kubectl logs --previous <POD_NAME> -n apinizer

kubectl describe pod <POD_NAME> -n apinizer

kubectl exec -it <POD_NAME> -n prod /bin/bash

kubectl exec -it <POD_NAME> -n prod -- curl x.y.gov.tr

kubectl rollout restart deployment manager -n apinizer

kubectl scale deploy cache -n prod --replicas=0

kubectl delete -f apinizer-deployment.yaml

kubectl delete pod <POD_NAME> -n apinizer --grace-period=0 --force

kubectl edit deployment manager -n apinizer
kubectl edit deployment cache -n prod
kubectl edit deployment worker -n prod

kubectl get pod -n prod | grep Evicted | awk '{print $1}' | xargs kubectl delete pod -n prod

affinity:
  nodeAffinity:
    requiredDuringSchedulingIgnoredDuringExecution:
      nodeSelectorTerms:
      - matchExpressions:
        - key: kubernetes.io/hostname
          operator: NotIn
          values:
          - kuberdemo55
          - kuberdemo56

docker images

docker ps -a

sudo docker pull apinizercloud/manager:2024.xx.0

sudo docker save apinizercloud/manager:2024.xx.0 > manager_2024.xx.0.tar

sudo docker load < manager_2024.xx.0.tar

sudo ctr namespaces list

sudo ctr --namespace k8s.io containers ls

sudo ctr -n k8s.io images list | grep apinizer

sudo ctr --namespace k8s.io images pull docker.io/apinizercloud/manager:2024.05.0

sudo ctr -n k8s.io images export /tmp/manager:2024.05.0.tar docker.io/apinizercloud/manager:2024.05.0

sudo ctr --namespace k8s.io images import /tmp/manager:2024.05.0.tar