Can someone please give me a good article or docs or videos that explains the et . . .

Kubernetes
#1

Pradeep:
Can someone please give me a good article or docs or videos that explains the etcd restore? I am still not 100% sure about implementing it. I am confused always on how to get the certificates, the necessary flags used. @Mumshad Mannambeth or @Tej_Singh_Rana or @Mohamed Ayman could you guys make another video on how to approach this or point me to the right direction?

#2

JohnC:
the certs paths are in the yaml that is used to start the etcd pod in a static pod - you will know the master node was created with kubeadm (and therefore using static pods for the system) if the /etc?kubernetes/manifest directory has the yaml files for etcd, kube-api, kube-schedule etc. If you do something like:
sudo cat etcd.yaml| grep -E ‘(server|crt)’

it returns:

  • –cert-file=/etc/kubernetes/pki/etcd/server.crt
    • –key-file=/etc/kubernetes/pki/etcd/server.key
    • –peer-cert-file=/etc/kubernetes/pki/etcd/peer.crt
    • –peer-trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt
    • –trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt

which are the certs you need for the backup

#3

JohnC:
restore help can be had from:
ETCDCTL_API=3 etcdctl snapshot restore --help

#4

Mohamed Ayman:
Check this:
https://github.com/mmumshad/kubernetes-the-hard-way/blob/master/practice-questions-answers/cluster-maintenance/backup-etcd/etcd-backup-and-restore.md#4-modify-etckubernetesmanifestsetcdyaml|https://github.com/mmumshad/kubernetes-the-hard-way/blob/master/practice-questions[…]wers/cluster-maintenance/backup-etcd/etcd-backup-and-restore.md

#5

Pradeep:
@JohnC and @Mohamed Ayman thank you. I will check this.