kubernetes - 恢复 kops Kubernetes 集群

Question

有一个由 kops 创建的 kubernetes 集群当运行 kops validate 时，这是输出:

    INSTANCE GROUPS
NAME            ROLE    MACHINETYPE MIN MAX SUBNETS
master-us-east-1a   Master  m4.xlarge   1   1   us-east-1a
nodes           Node    c4.2xlarge  1   75  us-east-1a

NODE STATUS
NAME                ROLE    READY
ip-172-20-59-93.ec2.internal    master  False

VALIDATION ERRORS
KIND    NAME                MESSAGE
Machine i-0a44bbdd18c86e846     machine "i-0a44bbdd18c86e846" has not yet joined cluster
Machine i-0d3302056f3dfeef0     machine "i-0d3302056f3dfeef0" has not yet joined cluster
Machine i-0d6199876b91962f4     machine "i-0d6199876b91962f4" has not yet joined cluster
Node    ip-172-20-59-93.ec2.internal    master "ip-172-20-59-93.ec2.internal" is not ready

Validation Failed

我该如何恢复这个集群？此集群的 s3 文件可用。

etcd 卷显示状态为“正在使用”

Answer 1

kops 将集群的状态存储在 S3 中。

1. 找到存储状态的桶
2. 设置export KOPS_STATE_STORE=s3://your-k8s-state-store
3. 运行 kops 更新集群
4. 如果失败。
5. 终止与集群相关的所有实例
6. 运行kops create cluster

请注意，集群的内部状态不在 S3 中，而是在 etcd 中。这里的答案有关于这个主题的更多细节以及如何备份/恢复 etcd:How to restore kubernetes cluster using kops?