Dallas Kubernetes Workshop - Etcd Backup

dallas-k8s-workshop-etcd-backup.sh

# perform the commands from the following lab environment:
# https://studyk8s.club/cka-ectd-backup

# set etcdctl environment variable api to version 3
export ECTDCTL_API=3

# etcd help menu
etcdctl snapshot -h

# backup etcd
etcdctl snapshot save snapshot --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key

# view the snapshot in your current directory
ls

# check the status of your snapshot
etcdctl snapshot status snapshot --write-out=table

# delete the kube-proxy daemonSet
k delete ds kube-proxy -n kube-system

# verify that the daemonSet is deleted
k get ds -A

# restore from the snapshot backup
etcdctl snapshot restore snapshot --data-dir /var/lib/etcd-restore

# update the YAML manifest for etcd
sed -i "79 s/lib\/etcd/lib\/etcd-restore/" /etc/kubernetes/manifests/etcd.yaml