1.7. 使用 Control Plane Migration Assistant (CPMA) 迁移 control plane 设置

流程

1. 在 Red Hat 客户门户网站中，导航至 Downloads Red Hat OpenShift Container Platform。
2. 在 Download Red Hat OpenShift Container Platform 页面中，从 Product Variant 列表中选择 Red Hat OpenShift Container Platform 。
3. 从 Version 列表中选择 CPMA 1.0 for RHEL 7。这个二进制文件适用于 RHEL 7 和 RHEL 8。
4. 点 Download Now 为 Linux 或 MacOSX 下载 cpma，或为 Windows 下载 cpma.exe。
5. 对于 Linux 或 MacOSX，把文件保存在由 $PATH 定义的目录中；对于 Windows，把文件保存在由 %PATH% 定义的目录中。

6. 对于 Linux，把文件设置为可执行：

   $ sudo chmod +x cpma

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流程

1. 登陆到 OpenShift Container Platform 3 集群：

   $ oc login https://<master1.example.com> 

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   OpenShift Container Platform 3 主（master）节点。您必须登录到集群以接收 Kubernetes 和 OpenShift Container Platform API 的令牌。

2. 运行 CPMA。根据每个提示输入，如下例所示：

   $ cpma --manifests=false 

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   ? Do you wish to save configuration for future use? true
   ? What will be the source for OCP3 config files? Remote host 

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   ? Path to crio config file /etc/crio/crio.conf
   ? Path to etcd config file /etc/etcd/etcd.conf
   ? Path to master config file /etc/origin/master/master-config.yaml
   ? Path to node config file /etc/origin/node/node-config.yaml
   ? Path to registries config file /etc/containers/registries.conf
   ? Do wish to find source cluster using KUBECONFIG or prompt it? KUBECONFIG
   ? Select cluster obtained from KUBECONFIG contexts master1-example-com:443
   ? Select master node master1.example.com
   ? SSH login root 

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   ? SSH Port 22
   ? Path to private SSH key /home/user/.ssh/openshift_key
   ? Path to application data, skip to use current directory .
   INFO[29 Aug 19 00:07 UTC] Starting manifest and report generation
   INFO[29 Aug 19 00:07 UTC] Transform:Starting for - API
   INFO[29 Aug 19 00:07 UTC] APITransform::Extract
   INFO[29 Aug 19 00:07 UTC] APITransform::Transform:Reports
   INFO[29 Aug 19 00:07 UTC] Transform:Starting for - Cluster
   INFO[29 Aug 19 00:08 UTC] ClusterTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportQuotas
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportPVs
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportNamespaces
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportNodes
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportRBAC
   INFO[29 Aug 19 00:08 UTC] ClusterReport::ReportStorageClasses
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - Crio
   INFO[29 Aug 19 00:08 UTC] CrioTransform::Extract
   WARN[29 Aug 19 00:08 UTC] Skipping Crio: No configuration file available
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - Docker
   INFO[29 Aug 19 00:08 UTC] DockerTransform::Extract
   INFO[29 Aug 19 00:08 UTC] DockerTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - ETCD
   INFO[29 Aug 19 00:08 UTC] ETCDTransform::Extract
   INFO[29 Aug 19 00:08 UTC] ETCDTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - OAuth
   INFO[29 Aug 19 00:08 UTC] OAuthTransform::Extract
   INFO[29 Aug 19 00:08 UTC] OAuthTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - SDN
   INFO[29 Aug 19 00:08 UTC] SDNTransform::Extract
   INFO[29 Aug 19 00:08 UTC] SDNTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - Image
   INFO[29 Aug 19 00:08 UTC] ImageTransform::Extract
   INFO[29 Aug 19 00:08 UTC] ImageTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Transform:Starting for - Project
   INFO[29 Aug 19 00:08 UTC] ProjectTransform::Extract
   INFO[29 Aug 19 00:08 UTC] ProjectTransform::Transform:Reports
   INFO[29 Aug 19 00:08 UTC] Flushing reports to disk
   INFO[29 Aug 19 00:08 UTC] Report:Added: report.json
   INFO[29 Aug 19 00:08 UTC] Report:Added: report.html
   INFO[29 Aug 19 00:08 UTC] Successfully finished transformations

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   --manifests=false：不生成 CR 清单

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   Remote host：远程模式

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   SSH login：为了访问配置文件，SSH 用户必须在 OpenShift Container Platform 3 集群上具有 sudo 权限。

   如果您没有指定输出目录，CPMA 会在当前目录中创建以下文件和目录：

   • cpma.yaml 文件：运行 CPMA 时提供的配置选项
   • master1.example.com/: master 节点中的配置文件
   • report.json: JSON 格式的报告
   • report.html: HTML 格式的报告
3. 在浏览器中打开 report.html 文件来查看 CPMA 报告。

4. 如果生成 CR 清单，将 CR 清单应用到 OpenShift Container Platform 4.3 集群，如下例所示：

   $ oc apply -f 100_CPMA-cluster-config-secret-htpasswd-secret.yaml

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