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对 Batch 池使用扩展

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扩展是一种小型应用程序，用于帮助在 Batch 计算节点上进行预配后配置和设置。 可以选择 Azure Batch 允许的任何扩展，并在预配计算节点时在其上安装这些扩展。 之后，扩展就可执行其预期操作。

可查看所用扩展的实时状态，并检索它们返回的信息，以实现任何检测、更正或诊断功能。

先决条件

  • 使用扩展的池必须采用虚拟机配置。
  • CustomScript 扩展类型是为 Azure Batch 服务保留的，不能被替代。
  • 某些扩展可能需要可在计算节点的上下文中访问的池级托管标识才能正常运行。 请参阅在 Batch 池中配置托管标识（如果适用于扩展）。

提示

无法将扩展添加到现有池。 必须重新创建池才能添加、删除或更新扩展。

支持的扩展

目前可在创建 Batch 池时安装以下扩展：

可通过创建支持请求来请求对其他发布服务器和/或扩展类型的支持。

创建使用扩展的池

下面的示例会创建使用 Azure Key Vault 扩展的 Linux/Windows 节点 Batch 池。

REST API URI

 PUT https://management.chinacloudapi.cn/subscriptions/<subscriptionId>/resourceGroups/<resourceGroup>/providers/Microsoft.Batch/batchAccounts/<batchaccountName>/pools/<batchpoolName>?api-version=2021-01-01

Linux 节点的请求正文

{
  "name": "test1",
  "type": "Microsoft.Batch/batchAccounts/pools",
  "properties": {
    "vmSize": "STANDARD_DS2_V2",
    "taskSchedulingPolicy": {
      "nodeFillType": "Pack"
    },
    "deploymentConfiguration": {
      "virtualMachineConfiguration": {
        "imageReference": {
          "publisher": "microsoftcblmariner",
          "offer": "cbl-mariner",
          "sku": "cbl-mariner-2",
          "version": "latest"
        },
        "nodeAgentSkuId": "batch.node.mariner 2.0",
        "extensions": [
          {
            "name": "secretext",
            "type": "KeyVaultForLinux",
            "publisher": "Microsoft.Azure.KeyVault",
            "typeHandlerVersion": "3.0",
            "autoUpgradeMinorVersion": true,
            "settings": {
              "secretsManagementSettings": {
                "pollingIntervalInS": "300",
                "certificateStoreLocation": "/var/lib/waagent/Microsoft.Azure.KeyVault",
                "requireInitialSync": true,
                "observedCertificates": [
                  "https://testkvchinanorth2.vault.azure.cn/secrets/authsecreat"
                ]
              },
              "authenticationSettings": {
                "msiEndpoint": "http://169.254.169.254/metadata/identity",
                "msiClientId": "885b1a3d-f13c-4030-afcf-9f05044d78dc"
              }
            },
            "protectedSettings": {}
          }
        ]
      }
    },
    "scaleSettings": {
      "fixedScale": {
        "targetDedicatedNodes": 1,
        "targetLowPriorityNodes": 0,
        "resizeTimeout": "PT15M"
      }
    }
  },
  "identity": {
    "type": "UserAssigned",
    "userAssignedIdentities": {
      "/subscriptions/042998e4-36dc-4b7d-8ce3-a7a2c4877d33/resourceGroups/ACR/providers/Microsoft.ManagedIdentity/userAssignedIdentities/testumaforpools": {}
    }
  }
}

Windows 节点的请求正文

{
    "name": "test1",
    "type": "Microsoft.Batch/batchAccounts/pools",
    "properties": {
        "vmSize": "STANDARD_DS2_V2",
        "taskSchedulingPolicy": {
            "nodeFillType": "Pack"
        },
        "deploymentConfiguration": {
            "virtualMachineConfiguration": {
                "imageReference": {
                    "publisher": "microsoftwindowsserver",
                    "offer": "windowsserver",
                    "sku": "2022-datacenter",
                    "version": "latest"
                },
                "nodeAgentSkuId": "batch.node.windows amd64",
                "extensions": [
                    {
                        "name": "secretext",
                        "type": "KeyVaultForWindows",
                        "publisher": "Microsoft.Azure.KeyVault",
                        "typeHandlerVersion": "3.0",
                        "autoUpgradeMinorVersion": true,
                        "settings": {
                            "secretsManagementSettings": {
                                "pollingIntervalInS": "300",
                                "requireInitialSync": true,
                                "observedCertificates": [
                                    {
                                        "https://testkvchinanorth2.vault.azure.cn/secrets/authsecreat"
                                        "certificateStoreLocation": "LocalMachine",
                                        "keyExportable": true
                                    }
                                ]
                            },
                            "authenticationSettings": {
                                "msiEndpoint": "http://169.254.169.254/metadata/identity",
                                "msiClientId": "885b1a3d-f13c-4030-afcf-9f05044d78dc"
                            }
                        },
                        "protectedSettings":{}
                    }
                ]
            }
        },
        "scaleSettings": {
            "fixedScale": {
                "targetDedicatedNodes": 1,
                "targetLowPriorityNodes": 0,
                "resizeTimeout": "PT15M"
            }
        }
    },
    "identity": {
        "type": "UserAssigned",
        "userAssignedIdentities": {
            "/subscriptions/042998e4-36dc-4b7d-8ce3-a7a2c4877d33/resourceGroups/ACR/providers/Microsoft.ManagedIdentity/userAssignedIdentities/testumaforpools": {}
        }
    }
}

从池中获取扩展数据

下面的示例从 Azure Key Vault 扩展检索数据。

REST API URI

 GET https://<accountName>.<region>.batch.chinacloudapi.cn/pools/<poolName>/nodes/<tvmNodeName>/extensions/secretext?api-version=2010-01-01

响应正文

{
  "odata.metadata": "https://testchinanorth2batch.chinanorth2.batch.chinacloudapi.cn/$metadata#extensions/@Element",
  "instanceView": {
    "name": "secretext",
    "statuses": [
      {
        "code": "ProvisioningState/succeeded",
        "level": 0,
        "displayStatus": "Provisioning succeeded",
        "message": "Successfully started Key Vault extension service. 2021-02-08T19:49:39Z"
      }
    ]
  },
  "vmExtension": {
    "name": "KVExtensions",
    "publisher": "Microsoft.Azure.KeyVault",
    "type": "KeyVaultForLinux",
    "typeHandlerVersion": "1.0",
    "autoUpgradeMinorVersion": true,
    "settings": "{\r\n  \"secretsManagementSettings\": {\r\n    \"pollingIntervalInS\": \"300\",\r\n    \"certificateStoreLocation\": \"/var/lib/waagent/Microsoft.Azure.KeyVault\",\r\n    \"requireInitialSync\": true,\r\n    \"observedCertificates\": [\r\n      \"https://testkvchinanorth2.vault.azure.cn/secrets/testumi\"\r\n    ]\r\n  },\r\n  \"authenticationSettings\": {\r\n    \"msiEndpoint\": \"http://169.254.169.254/metadata/identity\",\r\n    \"msiClientId\": \"885b1a3d-f13c-4030-afcf-922f05044d78dc\"\r\n  }\r\n}"
  }
}

排查 Key Vault 扩展问题

如果 Key Vault 扩展配置错误，则计算节点可能处于可用状态。 要排查 Key Vault 扩展失败问题，可以暂时将 requireInitialSync 设置为 false 并重新部署池，然后计算节点会处于空闲状态，你可以登录到计算节点以检查 KeyVault 扩展日志是否存在错误并修复配置问题。 有关详细信息，请访问以下密钥保管库扩展文档链接。

后续步骤