k8s集群崩溃-ETCD集群快照恢复

查看集群成员列表

etcdctl --endpoints https://172.19.13.11:2379,https://172.19.13.12:2379,https://172.19.13.13:2379 --cacert /etc/kubernetes/pki/etcd/ca.crt --cert /etc/kubernetes/pki/etcd/server.crt --key /etc/kubernetes/pki/etcd/server.key member list -w table

恢复etcd集群过程
1、将所有master节点/etc/kubernetes/manifests/etcd.yaml文件备份

mv /etc/kubernetes/manifests/etcd.yaml /etc/kubernetes/manifests/etcd.yaml.bak

2、清理数据目录（–data-dir 配置 为目录地址）

rm -rf /var/lib/etcd/member

3、快照恢复

etcdctl snapshot restore ~/etcd_bak/sgz-11-etcd_202306150335.db --data-dir=/var/lib/etcd --initial-advertise-peer-urls="https://172.19.13.11:2380" --initial-cluster="sgz-11=https://172.19.13.11:2380,sgz-12=https://172.19.13.12:2380,sgz-13=https://172.19.13.13:2380" --name="sgz-11"
 
etcdctl snapshot restore ~/etcd_bak/sgz-11-etcd_202306150335.db --data-dir=/var/lib/etcd --initial-advertise-peer-urls="https://172.19.13.12:2380" --initial-cluster="sgz-11=https://172.19.13.11:2380,sgz-12=https://172.19.13.12:2380,sgz-13=https://172.19.13.13:2380" --name="sgz-12"
 
etcdctl snapshot restore ~/etcd_bak/sgz-11-etcd_202306150335.db --data-dir=/var/lib/etcd --initial-advertise-peer-urls="https://172.19.13.13:2380" --initial-cluster="sgz-11=https://172.19.13.11:2380,sgz-12=https://172.19.13.12:2380,sgz-13=https://172.19.13.13:2380" --name="sgz-13"

4、检查恢复状态

在恢复两个节点后，即可查看集群状态。