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10.10. 为 Azure 基础架构创建 RHCOS 集群镜像

您必须对 OpenShift Container Platform 节点的 Microsoft Azure 使用有效的 Red Hat Enterprise Linux CoreOS（RHCOS）镜像。

先决条件

  • 配置 Azure 帐户。
  • 为集群生成 Ignition 配置文件。
  • 将 RHCOS 虚拟硬盘（VHD）集群镜像存储在 Azure 存储容器中。
  • 在 Azure 存储容器中存储 bootstrap Ignition 配置文件。

流程

  1. 复制镜像存储的 ARM 模板 部分中的模板，并将它以 02_storage.json 保存到集群的安装目录中。此模板描述了集群所需的镜像存储。

  2. 以一个变量的形式将 RHCOS VHD blob URL 导出： 

    $ export VHD_BLOB_URL=`az storage blob url --account-name ${CLUSTER_NAME}sa --account-key ${ACCOUNT_KEY} -c vhd -n "rhcos.vhd" -o tsv`
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  3. 部署集群镜像 

    $ az deployment group create -g ${RESOURCE_GROUP} \
  --template-file "<installation_directory>/02_storage.json" \
  --parameters vhdBlobURL="${VHD_BLOB_URL}" \
    1 
    
  --parameters baseName="${INFRA_ID}" \
    2 
    
  --parameters storageAccount="${CLUSTER_NAME}sa" \
    3 
    
  --parameters architecture="<architecture>"
    4
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    1
    用于创建 master 和 worker 机器的 RHCOS VHD 的 blob URL。
    2
    资源名称使用的基本名称 ; 这通常是集群的基础架构 ID。
    3
    Azure 存储帐户的名称。
    4
    指定系统架构。有效值为 x64 （默认）或 Arm64。

10.10.1. 镜像存储的 ARM 模板
复制链接

您可以使用以下 Azure Resource Manager（ARM）模板来部署 OpenShift Container Platform 集群所需的存储的 Red Hat Enterprise Linux CoreOS（RHCOS）镜像：

例 10.23. 02_storage.json ARM 模板

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "architecture": {
      "type": "string",
      "metadata": {
        "description": "The architecture of the Virtual Machines"
      },
      "defaultValue": "x64",
      "allowedValues": [
        "Arm64",
        "x64"
      ]
    },
    "baseName": {
      "type": "string",
      "minLength": 1,
      "metadata": {
        "description": "Base name to be used in resource names (usually the cluster's Infra ID)"
      }
    },
    "storageAccount": {
      "type": "string",
      "metadata": {
        "description": "The Storage Account name"
      }
    },
    "vhdBlobURL": {
      "type": "string",
      "metadata": {
        "description": "URL pointing to the blob where the VHD to be used to create master and worker machines is located"
      }
    }
  },
  "variables": {
    "location": "[resourceGroup().location]",
    "galleryName": "[concat('gallery_', replace(parameters('baseName'), '-', '_'))]",
    "imageName": "[parameters('baseName')]",
    "imageNameGen2": "[concat(parameters('baseName'), '-gen2')]",
    "imageRelease": "1.0.0"
  },
  "resources": [
    {
      "apiVersion": "2021-10-01",
      "type": "Microsoft.Compute/galleries",
      "name": "[variables('galleryName')]",
      "location": "[variables('location')]",
      "resources": [
        {
          "apiVersion": "2021-10-01",
          "type": "images",
          "name": "[variables('imageName')]",
          "location": "[variables('location')]",
          "dependsOn": [
            "[variables('galleryName')]"
          ],
          "properties": {
            "architecture": "[parameters('architecture')]",
            "hyperVGeneration": "V1",
            "identifier": {
              "offer": "rhcos",
              "publisher": "RedHat",
              "sku": "basic"
            },
            "osState": "Generalized",
            "osType": "Linux"
          },
          "resources": [
            {
              "apiVersion": "2021-10-01",
              "type": "versions",
              "name": "[variables('imageRelease')]",
              "location": "[variables('location')]",
              "dependsOn": [
                "[variables('imageName')]"
              ],
              "properties": {
                "publishingProfile": {
                  "storageAccountType": "Standard_LRS",
                  "targetRegions": [
                    {
                      "name": "[variables('location')]",
                      "regionalReplicaCount": "1"
                    }
                  ]
                },
                "storageProfile": {
                  "osDiskImage": {
                    "source": {
                      "id": "[resourceId('Microsoft.Storage/storageAccounts', parameters('storageAccount'))]",
                      "uri": "[parameters('vhdBlobURL')]"
                    }
                  }
                }
              }
            }
          ]
        },
        {
          "apiVersion": "2021-10-01",
          "type": "images",
          "name": "[variables('imageNameGen2')]",
          "location": "[variables('location')]",
          "dependsOn": [
            "[variables('galleryName')]"
          ],
          "properties": {
            "architecture": "[parameters('architecture')]",
            "hyperVGeneration": "V2",
            "identifier": {
              "offer": "rhcos-gen2",
              "publisher": "RedHat-gen2",
              "sku": "gen2"
            },
            "osState": "Generalized",
            "osType": "Linux"
          },
          "resources": [
            {
              "apiVersion": "2021-10-01",
              "type": "versions",
              "name": "[variables('imageRelease')]",
              "location": "[variables('location')]",
              "dependsOn": [
                "[variables('imageNameGen2')]"
              ],
              "properties": {
                "publishingProfile": {
                  "storageAccountType": "Standard_LRS",
                  "targetRegions": [
                    {
                      "name": "[variables('location')]",
                      "regionalReplicaCount": "1"
                    }
                  ]
                },
                "storageProfile": {
                  "osDiskImage": {
                    "source": {
                      "id": "[resourceId('Microsoft.Storage/storageAccounts', parameters('storageAccount'))]",
                      "uri": "[parameters('vhdBlobURL')]"
                    }
                  }
                }
              }
            }
          ]
        }
      ]
    }
  ]
}
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