Gerenciar recursos do Azure Cosmos DB para Apache Cassandra usando modelos do Azure Resource Manager
APLICA-SE A: 
Cassandra
Neste artigo, você aprenderá a usar modelos do Azure Resource Manager para ajudar a implantar e gerenciar suas contas, keyspaces e tabelas do Azure Cosmos DB.
Este artigo tem exemplos de API apenas para contas Cassandra, para encontrar exemplos de outras contas de tipo de API, consulte: use modelos do Azure Resource Manager com a API do Azure Cosmos DB para NoSQL, Gremlin, MongoDB, Artigos de tabela.
Importante
- Os nomes das contas são limitados a 44 caracteres, todos em minúsculas.
- Para alterar os valores de taxa de transferência, reimplante o modelo com RU/s atualizados.
- Quando você adiciona ou remove locais a uma conta do Azure Cosmos DB, não pode modificar simultaneamente outras propriedades. Estas operações devem ser efetuadas separadamente.
Para criar qualquer um dos recursos do Azure Cosmos DB abaixo, copie o modelo de exemplo a seguir em um novo arquivo json. Opcionalmente, você pode criar um arquivo json de parâmetros para usar ao implantar várias instâncias do mesmo recurso com nomes e valores diferentes. Há muitas maneiras de implantar modelos do Azure Resource Manager, incluindo o portal do Azure, a CLI do Azure, o Azure PowerShell e o GitHub.
Conta do Azure Cosmos DB para Cassandra com taxa de transferência provisionada em escala automática
Este modelo cria uma conta do Azure Cosmos DB em duas regiões com opções de consistência e failover, com um espaço de chave e uma tabela configurados para taxa de transferência de dimensionamento automático. Este modelo também está disponível para implantação com um clique na Galeria de Modelos de Início Rápido do Azure.
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"metadata": {
"_generator": {
"name": "bicep",
"version": "0.8.9.13224",
"templateHash": "9558567034094647188"
}
},
"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": "Eventual",
"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 2,147,483,647. Multi Region: 100,000 to 2,147,483,647."
},
"maxValue": 1000000,
"minValue": 10
},
"maxIntervalInSeconds": {
"type": "int",
"defaultValue": 300,
"metadata": {
"description": "Max lag time (seconds). Required for BoundedStaleness. Valid ranges, Single Region: 5 to 84,600. Multi Region: 300 to 86,400."
},
"maxValue": 86400,
"minValue": 5
},
"systemManagedFailover": {
"type": "bool",
"defaultValue": true,
"metadata": {
"description": "Enable system managed failover for regions"
},
"allowedValues": [
true,
false
]
},
"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": 1000,
"metadata": {
"description": "Maximum autoscale throughput for the Cassandra table"
},
"maxValue": 1000000,
"minValue": 1000
}
},
"variables": {
"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": "2022-05-15",
"name": "[toLower(parameters('accountName'))]",
"location": "[parameters('location')]",
"kind": "GlobalDocumentDB",
"properties": {
"capabilities": [
{
"name": "EnableCassandra"
}
],
"consistencyPolicy": "[variables('consistencyPolicy')[parameters('defaultConsistencyLevel')]]",
"locations": "[variables('locations')]",
"databaseAccountOfferType": "Standard",
"enableAutomaticFailover": "[parameters('systemManagedFailover')]"
}
},
{
"type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces",
"apiVersion": "2022-05-15",
"name": "[format('{0}/{1}', toLower(parameters('accountName')), parameters('keyspaceName'))]",
"properties": {
"resource": {
"id": "[parameters('keyspaceName')]"
}
},
"dependsOn": [
"[resourceId('Microsoft.DocumentDB/databaseAccounts', toLower(parameters('accountName')))]"
]
},
{
"type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces/tables",
"apiVersion": "2022-05-15",
"name": "[format('{0}/{1}', format('{0}/{1}', toLower(parameters('accountName')), 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}', toLower(parameters('accountName')), parameters('keyspaceName')), '/')[0], split(format('{0}/{1}', toLower(parameters('accountName')), parameters('keyspaceName')), '/')[1])]"
]
}
]
}
Conta do Azure Cosmos DB para Cassandra com taxa de transferência provisionada padrão
Este modelo cria uma conta do Azure Cosmos DB em duas regiões com opções de consistência e failover, com um espaço de chave e uma tabela configurados para taxa de transferência padrão. Este modelo também está disponível para implantação com um clique na Galeria de Modelos de Início Rápido do Azure.
{
"$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"metadata": {
"_generator": {
"name": "bicep",
"version": "0.8.9.13224",
"templateHash": "16028185346043260848"
}
},
"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 2,147,483,647. Multi Region: 100,000 to 2,147,483,647."
},
"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
},
"systemManagedFailover": {
"type": "bool",
"defaultValue": true,
"metadata": {
"description": "Enable system managed failover for regions"
},
"allowedValues": [
true,
false
]
},
"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
}
},
"variables": {
"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": "2022-05-15",
"name": "[toLower(parameters('accountName'))]",
"location": "[parameters('location')]",
"kind": "GlobalDocumentDB",
"properties": {
"capabilities": [
{
"name": "EnableCassandra"
}
],
"consistencyPolicy": "[variables('consistencyPolicy')[parameters('defaultConsistencyLevel')]]",
"locations": "[variables('locations')]",
"databaseAccountOfferType": "Standard",
"enableAutomaticFailover": "[parameters('systemManagedFailover')]"
}
},
{
"type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces",
"apiVersion": "2022-05-15",
"name": "[format('{0}/{1}', toLower(parameters('accountName')), parameters('keyspaceName'))]",
"properties": {
"resource": {
"id": "[parameters('keyspaceName')]"
}
},
"dependsOn": [
"[resourceId('Microsoft.DocumentDB/databaseAccounts', toLower(parameters('accountName')))]"
]
},
{
"type": "Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces/tables",
"apiVersion": "2022-05-15",
"name": "[format('{0}/{1}', format('{0}/{1}', toLower(parameters('accountName')), 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}', toLower(parameters('accountName')), parameters('keyspaceName')), '/')[0], split(format('{0}/{1}', toLower(parameters('accountName')), parameters('keyspaceName')), '/')[1])]"
]
}
]
}
Próximos passos
Aqui estão alguns recursos adicionais: