And to create/restore backup I used 1. `ETCDCTL_API=3 etcdctl --endpoints=<https . . .

Kubernetes-Slack Discussions
#1

Gennway:
and to create/restore backup I used
1.
ETCDCTL_API=3 etcdctl --endpoints=<https://172.17.0.28:2379> --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key snapshot save /opt/etcd-backup.db
2.
ETCDCTL_API=3 etcdctl --endpoints=<https://172.17.0.28:2379> --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key snapshot restore /opt/etcd-backup.db --data-dir=/var/lib/etcd-backup
3.
I changed in the /etc/kubernetes/etcd.yml

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

into

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

and it doesnt work :circlethinking:

#2

Basavraj Nilkanthe:
@Gennway try with etcd restart

#3

Basavraj Nilkanthe:
There might be stale issue

#4

Basavraj Nilkanthe:
And you don’t need to pass certs details while restoring it.

#5

Basavraj Nilkanthe:
If it doesn’t work even after etcd restart. Try to restart kube-scheduler and kube-controlplane as these two component related with etcd

#6

Gennway:
I tried again, and it still doesnt work lol

#7

Gennway:
anyway I still dont know why the original etcd is mounted to /var/lib/etcd even if this directory doesnt exist

#8

Gennway:
@Mumshad Mannambeth

#9

Gennway:
i have no idea, i made again lab with creating etcd backup and restoring it and it worked, now i wanted to try the same thing in mock exam and it doesnt work

#10

Basavraj Nilkanthe:
Okay

#11

Basavraj Nilkanthe:
There must be bug

#12

Mumshad Mannambeth:
HI @Gennway can you share more details on what you mean by not work? Is the pod up? Are there any errors? What’s the status? Did you give it enough time for it to come back etc.

#13

Gennway:
let me sec, I’ll try to recreate that

#14

Gennway:
anyway I still dont knot why directory /var/lib/etcd doesnt exist on controlplane (etcd by default is plugged into that directory)

#15

Gennway:
so once again its mock exam 2, task 1.
I make backup with that command ETCDCTL_API=3 etcdctl --endpoints=<https://172.17.0.10:2379> --cacert=/etc/kubernetes/pki/etcd/ca.crt --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key snapshot save /opt/etcd-backup.db which is fine

#16

Gennway:
then I restore with ETCDCTL_API=3 etcdctl --endpoints=<https://172.17.0.10:2379> snapshot restore /opt/etcd-backup.db --data-dir=/var/lib/etcd-backup

#17

Gennway:
then I change in /etc/kubernetes/manifest/etcd.yml
volume path to

 - hostPath:
      path: /var/lib/etcd-backup
      type: DirectoryOrCreate
    name: etcd-data
#18

Gennway:
and now

#19

Gennway:

controlplane $ k get pods -A
No resources found
#20

Gennway:
also, as I mentioned earlier, I cant see the original directory of etcd in this lab which is /var/lib/etcd, I have no idea what’s happening :sweat_smile: @Mumshad Mannambeth