我在 GCP 上创建了一个 kubernetes 集群，其中的虚拟机实例具有 ubuntu 映像。我已经部署了一个 postgres 有状态集，但是当我尝试检查 pod 的日志时，我最终看到了以下内容。
kubectl logs pgset-1
Error from server: Get https://10.140.0.5:10250/containerLogs/default/pgset-1/pgset: No SSH tunnels currently open. Were the targets able to accept an ssh-key for user "gke-2bdc75f7d50bd7720226"?
kubectl get pods
NAME READY STATUS RESTARTS AGE
maya-apiserver-5b48756968-95887 1/1 Running 0 1h
openebs-provisioner-7b59878f76-9w5z8 1/1 Running 0 1h
pgset-0 1/1 Running 0 12m
pgset-1 1/1 Running 0 10m
pvc-8174e1f6-332f-11e8-85cd-42010af001b0-ctrl-fb5767469-jmjb2 2/2 Running 0 12m
pvc-8174e1f6-332f-11e8-85cd-42010af001b0-rep-8fd886589-tkvdq 1/1 Running 0 12m
pvc-8174e1f6-332f-11e8-85cd-42010af001b0-rep-8fd886589-wzr25 1/1 Running 0 12m
pvc-8174e1f6-332f-11e8-85cd-42010af001b0-rep-8fd886589-xvvfk 1/1 …