I have below question on killercoda for CKA certification Question: For this question, please set this context (In exam, diff cluster name)
kubectl config use-context kubernetes-admin@kubernetes
etcd-controlplane pod is running in kube-system environment, take backup and store it in /opt/cluster_backup.db file.
ETCD backup is stored at the path /opt/cluster_backup.db on the controlplane node. for --data-dir use /root/default.etcd , restore it on the controlplane node itself and , and also store restore console output store it in restore.txt
ssh controlplane
Answer:
I ran below commands
ETCDCTL_API=3 etcdctl --endpoints=https://127.0.0.1:2379 \
--cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key \
snapshot save /opt/cluster_backup.db
After running export
ETCDCTL_API=3
etcdctl --write-out=table snapshot status /opt/cluster_backup.db
I am getting as in screenshot backup output output of backup
ETCDCTL_API=3 etcdctl --data-dir=/root/default.etcd --endpoints=https://127.0.0.1:2379 \
--cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key \
snapshot restore /opt/cluster_backup.db > restore.txt
But when I run cat restore.txt, I am not getting anything.
