az_kusto function

Kusto/Azure Data Explorer cluster resource class

Kusto/Azure Data Explorer cluster resource class

Class representing a Kusto cluster, exposing methods for working with it. class

Methods

The following methods are available, in addition to those provided by the AzureRMR::az_resource class:

  • new(...): Initialize a new storage object. See 'Initialization'.
  • start(): Start the cluster.
  • stop(): Stop the cluster.
  • create_database(...): Create a new Kusto database. See Databases below.
  • get_database(database)): Get an existing database.
  • delete_database(database, confirm=TRUE): Delete a database, by default asking for confirmation first.
  • list_databases(): List all databases in this cluster.
  • get_default_tenant(): Retrieve the default tenant to authenticate with this cluster.
  • get_query_token(tenant, ...): Obtain an authentication token from Azure Active Directory for this cluster's query endpoint. Accepts further arguments that will be passed to get_kusto_token .
  • get_ingestion_token(tenant, ...): Obtain an authentication token for this cluster's ingestion endpoint. Accepts further arguments that will be passed to get_kusto_token .

Initialization

Initializing a new object of this class can either retrieve an existing Kusto cluster, or create a new cluster on the host. Generally, the best way to initialize an object is via the get_kusto_cluster and create_kusto_cluster methods of the az_resource_group class, which handle the details automatically.

Databases

A Kusto cluster can have several databases, which are represented in AzureKusto via az_kusto_database R6 objects. The az_kusto class provides the create_database, get_database, delete_database and list_databases methods for creating, deleting and retrieving databases. It's recommended to use these methods rather than calling az_kusto_database$new() directly.

create_database takes the following arguments. It returns an object of class az_kusto_database

  • database: The name of the database to create.
  • retention_period: The retention period of the database, after which data will be soft-deleted.
  • cache_period: The cache period of the database, the length of time for which queries will be cached.

get_database takes a single argument database, the name of the database to retrieve, and returns an object of class az_kusto_database. delete_database takes the name of the database to delete and returns NULL on a successful deletion. list_databases takes no arguments and returns a list of az_kusto_database objects, one for each database in the cluster.

Examples

## Not run: # recommended way of retrieving a resource: via a resource group object kus <- resgroup$get_kusto_cluster("mykusto") # list databases kust$list_databases() # create a new database with a retention period of 6 months kust$create_database("newdb", retention_period=180) # get the default authentication tenant kus$get_default_tenant() # generate an authentication token kust$get_aad_token() ## End(Not run)

See Also

az_kusto_database , kusto_database_endpoint , create_kusto_cluster , get_kusto_cluster , delete_kusto_cluster , get_kusto_token

Kusto/Azure Data Explorer documentation,

  • Maintainer: Alex Kyllo
  • License: MIT + file LICENSE
  • Last published: 2023-10-12