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版本:v2.9 (Preview)

注册集群

本文列出的命令/步骤可用于检查你正在注册或已在 Rancher 中注册的集群。

请确保你配置了正确的 kubeconfig(例如,export KUBECONFIG=$PWD/kubeconfig_from_imported_cluster.yml)。

Rancher Agents

Rancher Agent 用于实现与集群的通信(通过 cattle-cluster-agent 的 Kubernetes API)和与节点的通信。

如果 cattle-cluster-agent 无法连接到配置的 server-url,集群将保持在 Pending 状态并显示 Waiting for full cluster configuration

cattle-node-agent

备注

cattle-node-agents 只会在使用 RKE 在 Rancher 创建的集群中显示。

检查每个节点上是否存在 cattle-node-agent pod,状态是否为 Running,并且重启次数不多:

kubectl -n cattle-system get pods -l app=cattle-agent -o wide

输出示例:

NAME                      READY     STATUS    RESTARTS   AGE       IP                NODE
cattle-node-agent-4gc2p 1/1 Running 0 2h x.x.x.x worker-1
cattle-node-agent-8cxkk 1/1 Running 0 2h x.x.x.x etcd-1
cattle-node-agent-kzrlg 1/1 Running 0 2h x.x.x.x etcd-0
cattle-node-agent-nclz9 1/1 Running 0 2h x.x.x.x controlplane-0
cattle-node-agent-pwxp7 1/1 Running 0 2h x.x.x.x worker-0
cattle-node-agent-t5484 1/1 Running 0 2h x.x.x.x controlplane-1
cattle-node-agent-t8mtz 1/1 Running 0 2h x.x.x.x etcd-2

检查特定或所有 cattle-node-agent pod 的日志记录:

kubectl -n cattle-system logs -l app=cattle-agent

cattle-cluster-agent

检查 cattle-cluster-agent pod 是否存在于集群中,状态是否为 Running,并且重启次数不多:

kubectl -n cattle-system get pods -l app=cattle-cluster-agent -o wide

输出示例:

NAME                                    READY     STATUS    RESTARTS   AGE       IP           NODE
cattle-cluster-agent-54d7c6c54d-ht9h4 1/1 Running 0 2h x.x.x.x worker-1

检查 cattle-cluster-agent pod 的日志记录:

kubectl -n cattle-system logs -l app=cattle-cluster-agent