Kubernetes Snapshot

NAME:
        snapshot save - Stores an etcd node backend snapshot to a given file

USAGE:
        etcdctl snapshot save <filename> [flags]

OPTIONS:
  -h, --help[=false]    help for save

GLOBAL OPTIONS:
      --cacert=""                               verify certificates of TLS-enabled secure servers using this CA bundle
      --cert=""                                 identify secure client using this TLS certificate file
      --command-timeout=5s                      timeout for short running command (excluding dial timeout)
      --debug[=false]                           enable client-side debug logging
      --dial-timeout=2s                         dial timeout for client connections
  -d, --discovery-srv=""                        domain name to query for SRV records describing cluster endpoints
      --discovery-srv-name=""                   service name to query when using DNS discovery
      --endpoints=[127.0.0.1:2379]              gRPC endpoints
      --hex[=false]                             print byte strings as hex encoded strings
      --insecure-discovery[=true]               accept insecure SRV records describing cluster endpoints
      --insecure-skip-tls-verify[=false]        skip server certificate verification
      --insecure-transport[=true]               disable transport security for client connections
      --keepalive-time=2s                       keepalive time for client connections
      --keepalive-timeout=6s                    keepalive timeout for client connections
      --key=""                                  identify secure client using this TLS key file
      --password=""                             password for authentication (if this option is used, --user option shouldn't include password)
      --user=""                                 username[:password] for authentication (prompt if password is not supplied)
  -w, --write-out="simple"                      set the output format (fields, json, protobuf, simple, table)

etcdctl snapshot save –help

etcd --version                                                                                                                                                                          frank@kubemaster
etcd Version: 3.4.9
Git SHA: 54ba95891
Go Version: go1.12.17
Go OS/Arch: linux/amd64

-------------------------
etcdctl version                                                                                                                                                                     1 ↵ frank@kubemaster
etcdctl version: 3.4.9
API version: 3.4

ETCDCTL_API=3

ps -aux |grep peer                                                                                                                                                                      frank@kubemaster
root       10648 11.9  2.4 11760936 802656 ?     Ssl   2023 11750:09 etcd --advertise-client-urls=https://172.22.0.4:2379 --cert-file=/etc/kubernetes/pki/etcd/server.crt --client-cert-auth=true --data-dir=/var/lib/etcd --experimental-initial-corrupt-check=true --experimental-watch-progress-notify-interval=5s --initial-advertise-peer-urls=https://172.22.0.4:2380 --initial-cluster=kind-control-plane=https://172.22.0.4:2380 --key-file=/etc/kubernetes/pki/etcd/server.key --listen-client-urls=https://127.0.0.1:2379,https://172.22.0.4:2379 --listen-metrics-urls=http://127.0.0.1:2381 --listen-peer-urls=https://172.22.0.4:2380 --name=kind-control-plane --peer-cert-file=/etc/kubernetes/pki/etcd/peer.crt --peer-client-cert-auth=true --peer-key-file=/etc/kubernetes/pki/etcd/peer.key --peer-trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt --snapshot-count=10000 --trusted-ca-file=/etc/kubernetes/pki/etcd/ca.crt

ps -aux | grep peer

sudo ETCDCTL_API=3 etcdctl snapshot save 2024_03_09-snapshot.bak --cert=/etc/kubernetes/pki/etcd/server.crt --key=/etc/kubernetes/pki/etcd/server.key --cacert=/etc/kubernetes/pki/etcd/ca.crt
{"level":"info","ts":1709968348.0175128,"caller":"snapshot/v3_snapshot.go:119","msg":"created temporary db file","path":"2024_03_09-snapshot.bak.part"}