10.3.23. 创建 worker 节点并完成安装

流程

1. 创建 worker 节点：

   $ ansible-playbook -i inventory.yml workers.yml

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2. 要列出所有 CSR，请输入：

   $ oc get csr -A

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   最后，这个命令会显示每个节点的一个 CSR。例如：

   输出示例

   NAME        AGE    SIGNERNAME                                    REQUESTOR                                                                   CONDITION
   csr-2lnxd   63m    kubernetes.io/kubelet-serving                 system:node:ocp4-lk6b4-master0.ocp4.example.org                             Approved,Issued
   csr-hff4q   64m    kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Approved,Issued
   csr-hsn96   60m    kubernetes.io/kubelet-serving                 system:node:ocp4-lk6b4-master2.ocp4.example.org                             Approved,Issued
   csr-m724n   6m2s   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
   csr-p4dz2   60m    kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Approved,Issued
   csr-t9vfj   60m    kubernetes.io/kubelet-serving                 system:node:ocp4-lk6b4-master1.ocp4.example.org                             Approved,Issued
   csr-tggtr   61m    kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Approved,Issued
   csr-wcbrf   7m6s   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending

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3. 要过滤列表并只查看待处理的 CSR，请输入：

   $ watch "oc get csr -A | grep pending -i"

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   此命令每两秒钟刷新输出一次，仅显示待处理的 CSR。例如：

   输出示例

   Every 2.0s: oc get csr -A | grep pending -i
   
   csr-m724n   10m   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending
   csr-wcbrf   11m   kubernetes.io/kube-apiserver-client-kubelet   system:serviceaccount:openshift-machine-config-operator:node-bootstrapper   Pending

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4. 检查每个待处理的请求。例如：

   输出示例

   $ oc describe csr csr-m724n

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   输出示例

   Name:               csr-m724n
   Labels:             <none>
   Annotations:        <none>
   CreationTimestamp:  Sun, 19 Jul 2020 15:59:37 +0200
   Requesting User:    system:serviceaccount:openshift-machine-config-operator:node-bootstrapper
   Signer:             kubernetes.io/kube-apiserver-client-kubelet
   Status:             Pending
   Subject:
            Common Name:    system:node:ocp4-lk6b4-worker1.ocp4.example.org
            Serial Number:
            Organization:   system:nodes
   Events:  <none>

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5. 如果 CSR 信息正确，则批准请求：

   $ oc adm certificate approve csr-m724n

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6. 等待安装过程完成：

   $ openshift-install wait-for install-complete --dir $ASSETS_DIR --log-level debug

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   安装完成后，命令行会显示 OpenShift Container Platform Web 控制台以及管理员用户名和密码的 URL。