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Tanzu Kubernetes集群节点SSH登录

时间:2021-07-09 17:55:11      阅读:0      评论:0      收藏:0      [点我收藏+]

标签:上下文   mount   ssh   pre   aml   efault   bash   id_rsa   uber   

SSH登录Tanzu Kubernetes集群节点进行日常运维排错
环境介绍:

NameSpace: tkc-cluster
https://img2020.cnblogs.com/blog/1048291/202006/1048291-20200630190840044-1058379559.png
准备工作
创建名为 NAMESPACE 的环境变量,其值为 主管命名空间的名称。

export NAMESPACE=tkc-cluster

将上下文切换到置备了 主管命名空间集群的 Tanzu Kubernetes。

kubectl config use-context $NAMESPACE

运行以下 kubectl 命令以查看 YOUR-CLUSTER-NAME-ssh 密钥对象。

$ kubectl get secrets
NAME                                    TYPE                                  DATA   AGE
default-token-qc2f8                     kubernetes.io/service-account-token   3      10d
tkc-cluster-default-image-pull-secret   kubernetes.io/dockerconfigjson        1      9d
tkc-cluster-default-image-push-secret   kubernetes.io/dockerconfigjson        1      9d
tkc-guest-cluster-ca                    Opaque                                2      8d
tkc-guest-cluster-ccm-token-kjw8d       kubernetes.io/service-account-token   3      8d
tkc-guest-cluster-encryption            Opaque                                1      8d
tkc-guest-cluster-etcd                  Opaque                                2      8d
tkc-guest-cluster-kubeconfig            Opaque                                1      8d
tkc-guest-cluster-proxy                 Opaque                                2      8d
tkc-guest-cluster-pvcsi-token-mcd5g     kubernetes.io/service-account-token   3      8d
tkc-guest-cluster-sa                    Opaque                                2      8d
tkc-guest-cluster-ssh                   kubernetes.io/ssh-auth                1      8d
tkc-guest-cluster-ssh-password          Opaque                                1      8d
jumpbox.yaml
apiVersion: v1
kind: Pod
metadata:
  name: jumpbox
  namespace: tkc-cluster                     #REPLACE YOUR-NAMESPACE
spec:
  containers:
  - image: "photon:3.0"
    name: jumpbox
    command: [ "/bin/bash", "-c", "--" ]
    args: [ "yum install -y openssh-server openssh-clients; mkdir /root/.ssh; cp /root/ssh/ssh-privatekey /root/.ssh/id_rsa; chmod 600 /root/.ssh/id_rsa; while true; do sleep 30; done;" ]
    volumeMounts:
      - mountPath: "/root/ssh"
        name: ssh-key
        readOnly: true
  volumes:
    - name: ssh-key
      secret:
        secretName: tkc-guest-cluster-ssh        #REPLACE YOUR-CLUSTER-NAME
获取节点IP
$ kubectl get virtualmachine
NAME                                               AGE
tkc-guest-cluster-control-plane-6cfsf              8d
tkc-guest-cluster-control-plane-drlqp              8d
tkc-guest-cluster-control-plane-wmn2s              8d
tkc-guest-cluster-workers-8k9c8-5576b69b67-rcsvd   29h
tkc-guest-cluster-workers-8k9c8-5576b69b67-s7hch   8d
tkc-guest-cluster-workers-8k9c8-5576b69b67-sb6ss   29h
tkc-guest-cluster-workers-8k9c8-5576b69b67-tnxn2   8d
tkc-guest-cluster-workers-8k9c8-5576b69b67-vxgt9   8d
$ VMNAME=tkc-guest-cluster-control-plane-wmn2s
$ export VMIP=$(kubectl -n $NAMESPACE get virtualmachine/$VMNAME -o jsonpath=‘{.status.vmIp}‘)

执行SSH

$ kubectl apply -f jumpbox.yaml 
$ kubectl exec -it jumpbox  /usr/bin/ssh vmware-system-user@$VMIP
... 恭喜SSH登录成功

Tanzu Kubernetes集群节点SSH登录

标签:上下文   mount   ssh   pre   aml   efault   bash   id_rsa   uber   

原文地址:https://www.cnblogs.com/shunzi115/p/14988772.html

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