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PowerProtect Data Manager: Protect and Restore a Kubernetes Primary Node etcd Database
Executive summary Overview Configuring the etcdctl utility Back up the etcd database
Back up the etcd database
Restore the etcd database after a disaster Technical support and resources

Back up the etcd database

Back up the etcd database

  • Use the following steps to take a snapshot dump of the etcd database:

    1. Create a directory (mkdir) on the primary node, for example:

    mkdir “k8backupforDELLDR”

    1. List all pods in the system:

    kubectl get pods -A -o wide

    1. Describe the etcd pod to get the etcd server IP address endpoint:

    kubectl describe <etcd-pod> -n kube-system

    1. Copy all certificates and manifests to the k8backupforDELLDR directory:

    cp -r /etc/kubernetes /k8backupforDELLDR

    1. Run the following command to take an etcd snapshot:

    ETCDCTL_API=3 etcdctl --endpoints=https://<etcd-server-IP>:2379 --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key snapshot save /k8backupforDELLDR/etcd-snapshot.db

    1. View the status and details of the snapshot:

    ETCDCTL_API=3 etcdctl --write-out=table snapshot status /k8backupforDELLDR/etcd-snapshot.db

    Note: The certificates and the etcd snapshot are available in the k8backupforDELLDR directory. Follow the previous steps to back up the volume containing the directory using the PowerProtect Data Manager File System Agent for Linux or VM Image protection. View the volume on which the k8backupforDELLDR directory is mounted and run a file system backup on a specific volume asset or a VM image backup on a VM asset.