Kubernetes Backup and Restore

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kubectl create namespace new-namespace
kubectl create secret
kubectl create configmap

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# Backup All Resources
kubectl get all --all-namespaces -o yaml > all-deploy-services.yaml

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cat /etc/systemd/system/etcd.service

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kubectl -n kube-system describe pod etcd-master | grep -i image

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kubectl -n kube-system describe pod etcd-controlplane | grep -i listen-client

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ETCDCTL_API=3 etcdctl snapshot save snapshot.db

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ETCDCTL_API=3 etcdctl snapshot status snapshot.db

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ETCDCTL_API=3 etcdctl snapshot save snapshot.db \
    --endpoints=https://127.0.0.1:2379 \
    --cacert=/etc/etcd/ca.crt \
    --cert=/etc/etcd/etcd-server.crt \
    --key=/etc/etcd/etcd-server.key

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service kube-apiserver stop

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ETCDCTL_API=3 etcdctl snapshot restore snapshot.db \
    --data-dir /var/lib/etcd-from-backup \
    --initial-cluster master-1=https://192.168.5.11:2380,master-2=https://192.168.5.12:2380 \
    --initial-cluster-token etcd-cluster-1 \
    --initial-advertise-peer-urls https://${INTERNAL_IP}:2380

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ETCDCTL_API=3 etcdctl snapshot restore /opt/snapshot-pre-boot.db \
    --data-dir /var/lib/etcd-from-backup

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vi /etc/kubernetes/manifests/etcd.yaml

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  volumes:
    - hostPath:
        path: /var/lib/etcd-from-backup
        type: DirectoryOrCreate
      name: etcd-data

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systemctl daemon-reload

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service etcd restart

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service kube-apiserver start