Manage Azure Cosmos DB for Apache Cassandra resources using Bicep
APPLIES TO:
Cassandra
In this article, you learn how to use Bicep to deploy and manage your Azure Cosmos DB for Apache Cassandra accounts, keyspaces, and tables.
This article shows Bicep samples for API for Cassandra accounts. You can also find Bicep samples for SQL, Gremlin, MongoDB, and Table APIs.
Important
- Account names are limited to 44 characters, all lowercase.
- To change the throughput values, redeploy the template with updated RU/s.
- When you add or remove locations to an Azure Cosmos DB account, you can't simultaneously modify other properties. These operations must be done separately.
To create any of the Azure Cosmos DB resources below, copy the following example into a new bicep file. You can optionally create a parameters file to use when deploying multiple instances of the same resource with different names and values. There are many ways to deploy Azure Resource Manager templates including, Azure CLI, Azure PowerShell and Cloud Shell.
API for Cassandra with autoscale provisioned throughput
Create an Azure Cosmos DB account in two regions with options for consistency and failover, with a keyspace and table configured for autoscale throughput.
@description('Cosmos DB account name, max length 44 characters')
param accountName string = 'cassandra-${uniqueString(resourceGroup().id)}'
@description('Location for the Cosmos DB account.')
param location string = resourceGroup().location
@description('The primary replica region for the Cosmos DB account.')
param primaryRegion string
@description('The secondary replica region for the Cosmos DB account.')
param secondaryRegion string
@allowed([
'Eventual'
'ConsistentPrefix'
'Session'
'BoundedStaleness'
'Strong'
])
@description('The default consistency level of the Cosmos DB account.')
param defaultConsistencyLevel string = 'Eventual'
@minValue(10)
@maxValue(1000000)
@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.')
param maxStalenessPrefix int = 100000
@minValue(5)
@maxValue(86400)
@description('Max lag time (seconds). Required for BoundedStaleness. Valid ranges, Single Region: 5 to 84,600. Multi Region: 300 to 86,400.')
param maxIntervalInSeconds int = 300
@allowed([
true
false
])
@description('Enable system managed failover for regions')
param systemManagedFailover bool = true
@description('The name for the Cassandra Keyspace')
param keyspaceName string
@description('The name for the Cassandra table')
param tableName string
@minValue(1000)
@maxValue(1000000)
@description('Maximum autoscale throughput for the Cassandra table')
param autoscaleMaxThroughput int = 1000
var consistencyPolicy = {
Eventual: {
defaultConsistencyLevel: 'Eventual'
}
ConsistentPrefix: {
defaultConsistencyLevel: 'ConsistentPrefix'
}
Session: {
defaultConsistencyLevel: 'Session'
}
BoundedStaleness: {
defaultConsistencyLevel: 'BoundedStaleness'
maxStalenessPrefix: maxStalenessPrefix
maxIntervalInSeconds: maxIntervalInSeconds
}
Strong: {
defaultConsistencyLevel: 'Strong'
}
}
var locations = [
{
locationName: primaryRegion
failoverPriority: 0
isZoneRedundant: false
}
{
locationName: secondaryRegion
failoverPriority: 1
isZoneRedundant: false
}
]
resource account 'Microsoft.DocumentDB/databaseAccounts@2022-05-15' = {
name: toLower(accountName)
location: location
kind: 'GlobalDocumentDB'
properties: {
capabilities: [
{
name: 'EnableCassandra'
}
]
consistencyPolicy: consistencyPolicy[defaultConsistencyLevel]
locations: locations
databaseAccountOfferType: 'Standard'
enableAutomaticFailover: systemManagedFailover
}
}
resource keyspace 'Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces@2022-05-15' = {
name: '${account.name}/${keyspaceName}'
properties: {
resource: {
id: keyspaceName
}
}
}
resource table 'Microsoft.DocumentDb/databaseAccounts/cassandraKeyspaces/tables@2022-05-15' = {
name: '${keyspace.name}/${tableName}'
properties: {
resource: {
id: tableName
schema: {
columns: [
{
name: 'loadid'
type: 'uuid'
}
{
name: 'machine'
type: 'uuid'
}
{
name: 'cpu'
type: 'int'
}
{
name: 'mtime'
type: 'int'
}
{
name: 'load'
type: 'float'
}
]
partitionKeys: [
{
name: 'machine'
}
{
name: 'cpu'
}
{
name: 'mtime'
}
]
clusterKeys: [
{
name: 'loadid'
orderBy: 'asc'
}
]
}
}
options: {
autoscaleSettings: {
maxThroughput: autoscaleMaxThroughput
}
}
}
}
API for Cassandra with standard provisioned throughput
Create an Azure Cosmos DB account in two regions with options for consistency and failover, with a keyspace and table configured for standard throughput.
@description('Cosmos DB account name, max length 44 characters')
param accountName string = 'cassandra-${uniqueString(resourceGroup().id)}'
@description('Location for the Cosmos DB account.')
param location string = resourceGroup().location
@description('The primary region for the Cosmos DB account.')
param primaryRegion string
@description('The secondary region for the Cosmos DB account.')
param secondaryRegion string
@allowed([
'Eventual'
'ConsistentPrefix'
'Session'
'BoundedStaleness'
'Strong'
])
@description('The default consistency level of the Cosmos DB account.')
param defaultConsistencyLevel string = 'Session'
@minValue(10)
@maxValue(2147483647)
@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.')
param maxStalenessPrefix int = 100000
@minValue(5)
@maxValue(86400)
@description('Max lag time (seconds). Required for BoundedStaleness. Valid ranges, Single Region: 5 to 84600. Multi Region: 300 to 86400.')
param maxIntervalInSeconds int = 300
@allowed([
true
false
])
@description('Enable system managed failover for regions')
param systemManagedFailover bool = true
@description('The name for the Cassandra Keyspace')
param keyspaceName string
@description('The name for the Cassandra table')
param tableName string
@minValue(400)
@maxValue(1000000)
@description('The throughput for Cassandra table')
param throughput int = 400
var consistencyPolicy = {
Eventual: {
defaultConsistencyLevel: 'Eventual'
}
ConsistentPrefix: {
defaultConsistencyLevel: 'ConsistentPrefix'
}
Session: {
defaultConsistencyLevel: 'Session'
}
BoundedStaleness: {
defaultConsistencyLevel: 'BoundedStaleness'
maxStalenessPrefix: maxStalenessPrefix
maxIntervalInSeconds: maxIntervalInSeconds
}
Strong: {
defaultConsistencyLevel: 'Strong'
}
}
var locations = [
{
locationName: primaryRegion
failoverPriority: 0
isZoneRedundant: false
}
{
locationName: secondaryRegion
failoverPriority: 1
isZoneRedundant: false
}
]
resource account 'Microsoft.DocumentDB/databaseAccounts@2022-05-15' = {
name: toLower(accountName)
location: location
kind: 'GlobalDocumentDB'
properties: {
capabilities: [
{
name: 'EnableCassandra'
}
]
consistencyPolicy: consistencyPolicy[defaultConsistencyLevel]
locations: locations
databaseAccountOfferType: 'Standard'
enableAutomaticFailover: systemManagedFailover
}
}
resource keyspace 'Microsoft.DocumentDB/databaseAccounts/cassandraKeyspaces@2022-05-15' = {
name: '${account.name}/${keyspaceName}'
properties: {
resource: {
id: keyspaceName
}
}
}
resource table 'Microsoft.DocumentDb/databaseAccounts/cassandraKeyspaces/tables@2022-05-15' = {
name: '${keyspace.name}/${tableName}'
properties: {
resource: {
id: 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: throughput
}
}
}
}
Next steps
Here are some additional resources: