etcd备份

etcdctl endpoint status --endpoints=https://192.168.17.1:2379,https://192.168.17.2:2379,https://192.168.17.3:2379 --cacert=/etc/kubernetes/ssl/ca.crt --cert=/etc/kubernetes/ssl/etcd_server.crt --key=/etc/kubernetes/ssl/etcd_server.key -w=table

etcdctl snapshot save /tmp/etcdbak-`date +%F`--endpoints=https://192.168.17.1:2379 --cacert=/etc/kubernetes/ssl/ca.crt --cert=/etc/kubernetes/ssl/etcd_server.crt --key=/etc/kubernetes/ssl/etcd_server.key -w=table

scp 192.168.17.2:/tmp/etcdbak-2024-01-22 .

1）获取etcd名称

ETCD_NAME=`cat /etc/etcd/etcd.conf | grep ETCD_NAME |awk -F \" '{print $2}'`

2）获取etcd集群信息

ETCD_INITIAL_CLUSTER=`cat /etc/etcd/etcd.conf | grep ETCD_INITIAL_CLUSTER= | awk -F \" '{print $2}'`

3）获取etcd数据路径

ETCD_DATA_DIR=`cat /etc/etcd/etcd.conf |grep ETCD_DATA_DIR | awk -F \" '{print $2}'`

4）获取etcd的 Token

ETCD_INITIAL_CLUSTER_TOKEN=`cat /etc/etcd/etcd.conf |grep TOKEN |awk -F \" '{print $2}'`

5）获取etcd集群通告地址

ADVERTISE_PEER_URLS=`cat /etc/etcd/etcd.conf |grep ADVERTISE_PEER_URLS |awk -F \" '{print $2}'`

etcdctl snapshot --cacert=CA_PATH --cert=CRT_PATH --key=KEY_PATH restore /apps/etcd_data/etcdbak-2024-01-22 --name=ETCD_NAME --data-dir=ETCD_DATA_DIR --initial-cluster=ETCD_INITIAL_CLUSTER --initial-cluster-token=ETCD_INITIAL_CLUSTER_TOKEN --initial-advertise-peer-urls=ADVERTISE_PEER_URLS

etcdctl snapshot --cacert=/etc/kubernetes/ssl/ca.crt --cert=/etc/kubernetes/ssl/etcd_server.crt --key=/etc/kubernetes/ssl/etcd_server.key restore /apps/etcd_data/etcdbak-2024-01-22 --name=etcd_159_1 --data-dir=/apps/etcd_data/etcd --initial-cluster=etcd_159_1=https://192.168.17.1:2380,etcd_159_2=https://192.168.17.2:2380,etcd_159_3=https://192.168.17.3:2380 --initial-cluster-token=cc34c326-4694-48c6-afdf-c317f40c1847 --initial-advertise-peer-urls=https://192.168.17.1:2380