第 6 章 安装程序置备的安装后配置

流程

1. 使用以下命令在安装主机上安装 Butane：

   $ sudo dnf -y install butane

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2. 为 control plane 节点创建一个 Butane 配置 99-master-chrony-conf-override.bu，包括 chrony.conf 文件的内容。

   注意

   如需有关 Butane 的信息，请参阅"使用 Butane 创建机器配置"。

   但ane 配置示例

   variant: openshift
   version: 4.14.0
   metadata:
     name: 99-master-chrony-conf-override
     labels:
       machineconfiguration.openshift.io/role: master
   storage:
     files:
       - path: /etc/chrony.conf
         mode: 0644
         overwrite: true
         contents:
           inline: |
             # Use public servers from the pool.ntp.org project.
             # Please consider joining the pool (https://www.pool.ntp.org/join.html).
   
             # The Machine Config Operator manages this file
             server openshift-master-0.<cluster-name>.<domain> iburst 

   1

   
             server openshift-master-1.<cluster-name>.<domain> iburst
             server openshift-master-2.<cluster-name>.<domain> iburst
   
             stratumweight 0
             driftfile /var/lib/chrony/drift
             rtcsync
             makestep 10 3
             bindcmdaddress 127.0.0.1
             bindcmdaddress ::1
             keyfile /etc/chrony.keys
             commandkey 1
             generatecommandkey
             noclientlog
             logchange 0.5
             logdir /var/log/chrony
   
             # Configure the control plane nodes to serve as local NTP servers
             # for all worker nodes, even if they are not in sync with an
             # upstream NTP server.
   
             # Allow NTP client access from the local network.
             allow all
             # Serve time even if not synchronized to a time source.
             local stratum 3 orphan

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   1

   您必须将 <cluster-name> 替换为集群名称，并将 <domain> 替换为完全限定域名。

3. 使用 Butane 生成 MachineConfig 对象文件 99-master-chrony-conf-override.yaml，其中包含要发送到 control plane 节点的配置：

   $ butane 99-master-chrony-conf-override.bu -o 99-master-chrony-conf-override.yaml

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4. 为引用 control plane 节点上的 NTP 服务器的 worker 节点创建 Butane 配置 99-worker-chrony-conf-override.bu，包括 chrony.conf 文件的内容。

   但ane 配置示例

   variant: openshift
   version: 4.14.0
   metadata:
     name: 99-worker-chrony-conf-override
     labels:
       machineconfiguration.openshift.io/role: worker
   storage:
     files:
       - path: /etc/chrony.conf
         mode: 0644
         overwrite: true
         contents:
           inline: |
             # The Machine Config Operator manages this file.
             server openshift-master-0.<cluster-name>.<domain> iburst 

   1

   
             server openshift-master-1.<cluster-name>.<domain> iburst
             server openshift-master-2.<cluster-name>.<domain> iburst
   
             stratumweight 0
             driftfile /var/lib/chrony/drift
             rtcsync
             makestep 10 3
             bindcmdaddress 127.0.0.1
             bindcmdaddress ::1
             keyfile /etc/chrony.keys
             commandkey 1
             generatecommandkey
             noclientlog
             logchange 0.5
             logdir /var/log/chrony

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   1

   您必须将 <cluster-name> 替换为集群名称，并将 <domain> 替换为完全限定域名。

5. 使用 Butane 生成 MachineConfig 对象文件 99-worker-chrony-conf-override.yaml，其中包含要交付至 worker 节点的配置：

   $ butane 99-worker-chrony-conf-override.bu -o 99-worker-chrony-conf-override.yaml

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6. 将 99-master-chrony-conf-override.yaml 策略应用到 control plane 节点。

   $ oc apply -f 99-master-chrony-conf-override.yaml

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   输出示例

   machineconfig.machineconfiguration.openshift.io/99-master-chrony-conf-override created

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7. 将 99-worker-chrony-conf-override.yaml 策略应用到 worker 节点。

   $ oc apply -f 99-worker-chrony-conf-override.yaml

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   输出示例

   machineconfig.machineconfiguration.openshift.io/99-worker-chrony-conf-override created

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8. 检查应用的 NTP 设置的状态。

   $ oc describe machineconfigpool

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