Cosmos DB Bicep Patterns

Account

resource cosmosAccount 'Microsoft.DocumentDB/databaseAccounts@2023-04-15' = {
  name: '${resourcePrefix}-cosmos-${uniqueHash}'
  location: location
  kind: 'GlobalDocumentDB'
  properties: {
    databaseAccountOfferType: 'Standard'
    locations: [
      {
        locationName: location
        failoverPriority: 0
        isZoneRedundant: false
      }
    ]
    consistencyPolicy: {
      defaultConsistencyLevel: 'Session'
    }
    capabilities: [
      {
        name: 'EnableServerless'
      }
    ]
  }
}

Database

resource cosmosDatabase 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases@2023-04-15' = {
  parent: cosmosAccount
  name: 'appdb'
  properties: {
    resource: {
      id: 'appdb'
    }
  }
}

Container

resource cosmosContainer 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases/containers@2023-04-15' = {
  parent: cosmosDatabase
  name: 'items'
  properties: {
    resource: {
      id: 'items'
      partitionKey: {
        paths: ['/partitionKey']
        kind: 'Hash'
      }
      indexingPolicy: {
        indexingMode: 'consistent'
        includedPaths: [
          { path: '/*' }
        ]
      }
    }
  }
}

Autoscale Container

resource cosmosContainer 'Microsoft.DocumentDB/databaseAccounts/sqlDatabases/containers@2023-04-15' = {
  parent: cosmosDatabase
  name: 'items'
  properties: {
    resource: {
      id: 'items'
      partitionKey: {
        paths: ['/partitionKey']
        kind: 'Hash'
      }
    }
    options: {
      autoscaleSettings: {
        maxThroughput: 4000
      }
    }
  }
}

Global Distribution

properties: {
  locations: [
    {
      locationName: 'East US'
      failoverPriority: 0
    }
    {
      locationName: 'West US'
      failoverPriority: 1
    }
  ]
  enableMultipleWriteLocations: true
}