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使用 Azure 资源管理器模板管理 Azure Cosmos DB for Apache Cassandra 资源

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适用对象： Cassandra

在本文中，你将了解如何使用 Azure 资源管理器模板来帮助部署和管理 Azure Cosmos DB 帐户、密钥空间和表。

本文仅提供 API for Cassandra 帐户示例，若要查找其他 API 类型帐户的示例，请参阅：将 Azure 资源管理器模板与 Azure Cosmos DB 的 API for NoSQL、Gremlin、MongoDB、Table 配合使用。

重要

  • 帐户名称限制为 44 个字符，全部小写。
  • 若要更改吞吐量值，请用更新的 RU/s 重新部署模板。
  • 当你在 Azure Cosmos DB 帐户中添加或删除位置时，无法同时修改其他属性。 必须单独执行这些操作。

若要创建以下任何 Azure Cosmos DB 资源，请将下列示例模板复制到新的 json 文件中。 在部署具有不同名称和值的同一资源的多个实例时，可以选择创建要使用的参数 json 文件。 可以通过多种方式部署 Azure 资源管理器模板，包括 Azure 门户、Azure CLI、Azure PowerShell 和 GitHub。

预配了自动缩放吞吐量的 Cassandra 的 Azure Cosmos DB 帐户

此模板在两个区域创建一个 Azure Cosmos DB 帐户，其中包含用于一致性和故障转移的选项，以及为自动缩放吞吐量配置的密钥空间和表。 此模板还支持从 Azure 快速入门模板库进行一键部署。

Deploy to Azure

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "metadata": {
    "_generator": {
      "name": "bicep",
      "version": "0.3.255.40792",
      "templateHash": "1465322124180139925"
    }
  },
  "parameters": {
    "accountName": {
      "type": "string",
      "defaultValue": "[format('cassandra-{0}', uniqueString(resourceGroup().id))]",
      "metadata": {
        "description": "Cosmos DB account name, max length 44 characters"
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for the Cosmos DB account."
      }
    },
    "primaryRegion": {
      "type": "string",
      "metadata": {
        "description": "The primary replica region for the Cosmos DB account."
      }
    },
    "secondaryRegion": {
      "type": "string",
      "metadata": {
        "description": "The secondary replica region for the Cosmos DB account."
      }
    },
    "defaultConsistencyLevel": {
      "type": "string",
      "defaultValue": "Session",
      "metadata": {
        "description": "The default consistency level of the Cosmos DB account."
      },
      "allowedValues": [
        "Eventual",
        "ConsistentPrefix",
        "Session",
        "BoundedStaleness",
        "Strong"
      ]
    },
    "maxStalenessPrefix": {
      "type": "int",
      "defaultValue": 100000,
      "metadata": {
        "description": "Max stale requests. Required for BoundedStaleness. Valid ranges, Single Region: 10 to 1000000. Multi Region: 100000 to 1000000."
      },
      "maxValue": 1000000,
      "minValue": 10
    },
    "maxIntervalInSeconds": {
      "type": "int",
      "defaultValue": 300,
      "metadata": {
        "description": "Max lag time (seconds). Required for BoundedStaleness. Valid ranges, Single Region: 5 to 84600. Multi Region: 300 to 86400."
      },
      "maxValue": 86400,
      "minValue": 5
    },
    "automaticFailover": {
      "type": "bool",
      "defaultValue": true,
      "metadata": {
        "description": "Enable automatic failover for regions"
      }
    },
    "keyspaceName": {
      "type": "string",
      "metadata": {
        "description": "The name for the Cassandra Keyspace"
      }
    },
    "tableName": {
      "type": "string",
      "metadata": {
        "description": "The name for the Cassandra table"
      }
    },
    "autoscaleMaxThroughput": {
      "type": "int",
      "defaultValue": 4000,
      "metadata": {
        "description": "Maximum autoscale throughput for the Cassandra table"
      },
      "maxValue": 1000000,
      "minValue": 4000
    }
  },
  "functions": [],
  "variables": {
    "accountName_var": "[toLower(parameters('accountName'))]",
    "consistencyPolicy": {
      "Eventual": {
        "defaultConsistencyLevel": "Eventual"
      },
      "ConsistentPrefix": {
        "defaultConsistencyLevel": "ConsistentPrefix"
      },
      "Session": {
        "defaultConsistencyLevel": "Session"
      },
      "BoundedStaleness": {
        "defaultConsistencyLevel": "BoundedStaleness",
        "maxStalenessPrefix": "[parameters('maxStalenessPrefix')]",
        "maxIntervalInSeconds": "[parameters('maxIntervalInSeconds')]"
      },
      "Strong": {
        "defaultConsistencyLevel": "Strong"
      }
    },
    "locations": [
      {
        "locationName": "[parameters('primaryRegion')]",
        "failoverPriority": 0,
        "isZoneRedundant": false
      },
      {
        "locationName": "[parameters('secondaryRegion')]",
        "failoverPriority": 1,
        "isZoneRedundant": false
      }
    ]
  },
  "resources": [
    {
      "type": "Microsoft.DocumentDB/databaseAccounts",
      "apiVersion": "2021-04-15",
      "name": "[variables('accountName_var')]",
      "location": "[parameters('location')]",
      "kind": "GlobalDocumentDB",
      "properties": {
        "capabilities": [
          {
            "name": "EnableCassandra"
          }
        ],
        "consistencyPolicy": "[variables('consistencyPolicy')[parameters('defaultConsistencyLevel')]]",
        "locations": "[variables('locations')]",
        "databaseAccountOfferType": "Standard",
        "enableAutomaticFailover": "[parameters('automaticFailover')]"
      }
    },
    {
      "type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces",
      "apiVersion": "2021-04-15",
      "name": "[format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName'))]",
      "properties": {
        "resource": {
          "id": "[parameters('keyspaceName')]"
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.DocumentDB/databaseAccounts', variables('accountName_var'))]"
      ]
    },
    {
      "type": "Microsoft.DocumentDb/databaseAccounts/cassandraKeyspaces/tables",
      "apiVersion": "2021-04-15",
      "name": "[format('{0}/{1}', format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), parameters('tableName'))]",
      "properties": {
        "resource": {
          "id": "[parameters('tableName')]",
          "schema": {
            "columns": [
              {
                "name": "loadid",
                "type": "uuid"
              },
              {
                "name": "machine",
                "type": "uuid"
              },
              {
                "name": "cpu",
                "type": "int"
              },
              {
                "name": "mtime",
                "type": "int"
              },
              {
                "name": "load",
                "type": "float"
              }
            ],
            "partitionKeys": [
              {
                "name": "machine"
              },
              {
                "name": "cpu"
              },
              {
                "name": "mtime"
              }
            ],
            "clusterKeys": [
              {
                "name": "loadid",
                "orderBy": "asc"
              }
            ]
          }
        },
        "options": {
          "autoscaleSettings": {
            "maxThroughput": "[parameters('autoscaleMaxThroughput')]"
          }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces', split(format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), '/')[0], split(format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), '/')[1])]"
      ]
    }
  ]
}

预配了标准吞吐量的 Cassandra 的 Azure Cosmos DB 帐户

此模板在两个区域创建一个 Azure Cosmos DB 帐户，其中包含用于一致性和故障转移的选项，以及为标准吞吐量配置的密钥空间和表。 此模板还支持从 Azure 快速入门模板库进行一键部署。

Deploy to Azure

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "metadata": {
    "_generator": {
      "name": "bicep",
      "version": "0.3.255.40792",
      "templateHash": "12484788747974976983"
    }
  },
  "parameters": {
    "accountName": {
      "type": "string",
      "defaultValue": "[format('cassandra-{0}', uniqueString(resourceGroup().id))]",
      "metadata": {
        "description": "Cosmos DB account name, max length 44 characters"
      }
    },
    "location": {
      "type": "string",
      "defaultValue": "[resourceGroup().location]",
      "metadata": {
        "description": "Location for the Cosmos DB account."
      }
    },
    "primaryRegion": {
      "type": "string",
      "metadata": {
        "description": "The primary region for the Cosmos DB account."
      }
    },
    "secondaryRegion": {
      "type": "string",
      "metadata": {
        "description": "The secondary region for the Cosmos DB account."
      }
    },
    "defaultConsistencyLevel": {
      "type": "string",
      "defaultValue": "Session",
      "metadata": {
        "description": "The default consistency level of the Cosmos DB account."
      },
      "allowedValues": [
        "Eventual",
        "ConsistentPrefix",
        "Session",
        "BoundedStaleness",
        "Strong"
      ]
    },
    "maxStalenessPrefix": {
      "type": "int",
      "defaultValue": 100000,
      "metadata": {
        "description": "Max stale requests. Required for BoundedStaleness. Valid ranges, Single Region: 10 to 1000000. Multi Region: 100000 to 1000000."
      },
      "maxValue": 2147483647,
      "minValue": 10
    },
    "maxIntervalInSeconds": {
      "type": "int",
      "defaultValue": 300,
      "metadata": {
        "description": "Max lag time (seconds). Required for BoundedStaleness. Valid ranges, Single Region: 5 to 84600. Multi Region: 300 to 86400."
      },
      "maxValue": 86400,
      "minValue": 5
    },
    "automaticFailover": {
      "type": "bool",
      "defaultValue": true,
      "metadata": {
        "description": "Enable automatic failover for regions"
      }
    },
    "keyspaceName": {
      "type": "string",
      "metadata": {
        "description": "The name for the Cassandra Keyspace"
      }
    },
    "tableName": {
      "type": "string",
      "metadata": {
        "description": "The name for the Cassandra table"
      }
    },
    "throughput": {
      "type": "int",
      "defaultValue": 400,
      "metadata": {
        "description": "The throughput for Cassandra table"
      },
      "maxValue": 1000000,
      "minValue": 400
    }
  },
  "functions": [],
  "variables": {
    "accountName_var": "[toLower(parameters('accountName'))]",
    "consistencyPolicy": {
      "Eventual": {
        "defaultConsistencyLevel": "Eventual"
      },
      "ConsistentPrefix": {
        "defaultConsistencyLevel": "ConsistentPrefix"
      },
      "Session": {
        "defaultConsistencyLevel": "Session"
      },
      "BoundedStaleness": {
        "defaultConsistencyLevel": "BoundedStaleness",
        "maxStalenessPrefix": "[parameters('maxStalenessPrefix')]",
        "maxIntervalInSeconds": "[parameters('maxIntervalInSeconds')]"
      },
      "Strong": {
        "defaultConsistencyLevel": "Strong"
      }
    },
    "locations": [
      {
        "locationName": "[parameters('primaryRegion')]",
        "failoverPriority": 0,
        "isZoneRedundant": false
      },
      {
        "locationName": "[parameters('secondaryRegion')]",
        "failoverPriority": 1,
        "isZoneRedundant": false
      }
    ]
  },
  "resources": [
    {
      "type": "Microsoft.DocumentDB/databaseAccounts",
      "apiVersion": "2021-04-15",
      "name": "[variables('accountName_var')]",
      "location": "[parameters('location')]",
      "kind": "GlobalDocumentDB",
      "properties": {
        "capabilities": [
          {
            "name": "EnableCassandra"
          }
        ],
        "consistencyPolicy": "[variables('consistencyPolicy')[parameters('defaultConsistencyLevel')]]",
        "locations": "[variables('locations')]",
        "databaseAccountOfferType": "Standard",
        "enableAutomaticFailover": "[parameters('automaticFailover')]"
      }
    },
    {
      "type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces",
      "apiVersion": "2021-04-15",
      "name": "[format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName'))]",
      "properties": {
        "resource": {
          "id": "[parameters('keyspaceName')]"
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.DocumentDB/databaseAccounts', variables('accountName_var'))]"
      ]
    },
    {
      "type": "Microsoft.DocumentDb/databaseAccounts/cassandraKeyspaces/tables",
      "apiVersion": "2021-04-15",
      "name": "[format('{0}/{1}', format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), parameters('tableName'))]",
      "properties": {
        "resource": {
          "id": "[parameters('tableName')]",
          "schema": {
            "columns": [
              {
                "name": "loadid",
                "type": "uuid"
              },
              {
                "name": "machine",
                "type": "uuid"
              },
              {
                "name": "cpu",
                "type": "int"
              },
              {
                "name": "mtime",
                "type": "int"
              },
              {
                "name": "load",
                "type": "float"
              }
            ],
            "partitionKeys": [
              {
                "name": "machine"
              },
              {
                "name": "cpu"
              },
              {
                "name": "mtime"
              }
            ],
            "clusterKeys": [
              {
                "name": "loadid",
                "orderBy": "asc"
              }
            ]
          },
          "options": {
            "throughput": "[parameters('throughput')]"
          }
        }
      },
      "dependsOn": [
        "[resourceId('Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces', split(format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), '/')[0], split(format('{0}/{1}', variables('accountName_var'), parameters('keyspaceName')), '/')[1])]"
      ]
    }
  ]
}

后续步骤

下面是一些其他资源：