azurerm_kusto_cluster - Add support for engine

[kosinsky]

Kusto aka ADX added support for EngineV3 which promises better performance. Adding engine argument to the kusto_cluster resources.

Updating kusto API to 2020-09-18 to use new EngineType field in ClusterProperties type

Implements #9695

Test run:

make testacc TEST='./azurerm/internal/services/kusto/tests/' TESTARGS='-run=TestAccAzureRMKustoCluster_ -parallel=3' TESTTIMEOUT='300m' 
==> Checking that code complies with gofmt requirements...
==> Checking that Custom Timeouts are used...
==> Checking that acceptance test packages are used...
TF_ACC=1 go test ./azurerm/internal/services/kusto/tests/ -v -run=TestAccAzureRMKustoCluster_ -parallel=3 -timeout 300m -ldflags="-X=github.com/terraform-providers/terraform-provider-azurerm/version.ProviderVersion=acc"
=== RUN   TestAccAzureRMKustoCluster_basic
=== PAUSE TestAccAzureRMKustoCluster_basic
=== RUN   TestAccAzureRMKustoCluster_update
=== PAUSE TestAccAzureRMKustoCluster_update
=== RUN   TestAccAzureRMKustoCluster_withTags
=== PAUSE TestAccAzureRMKustoCluster_withTags
=== RUN   TestAccAzureRMKustoCluster_sku
=== PAUSE TestAccAzureRMKustoCluster_sku
=== RUN   TestAccAzureRMKustoCluster_zones
=== PAUSE TestAccAzureRMKustoCluster_zones
=== RUN   TestAccAzureRMKustoCluster_identitySystemAssigned
=== PAUSE TestAccAzureRMKustoCluster_identitySystemAssigned
=== RUN   TestAccAzureRMKustoCluster_vnet
=== PAUSE TestAccAzureRMKustoCluster_vnet
=== RUN   TestAccAzureRMKustoCluster_languageExtensions
=== PAUSE TestAccAzureRMKustoCluster_languageExtensions
=== RUN   TestAccAzureRMKustoCluster_optimizedAutoScale
=== PAUSE TestAccAzureRMKustoCluster_optimizedAutoScale
=== RUN   TestAccAzureRMKustoCluster_engineV3
=== PAUSE TestAccAzureRMKustoCluster_engineV3
=== CONT  TestAccAzureRMKustoCluster_basic
=== CONT  TestAccAzureRMKustoCluster_vnet
=== CONT  TestAccAzureRMKustoCluster_sku
--- PASS: TestAccAzureRMKustoCluster_vnet (1381.34s)
=== CONT  TestAccAzureRMKustoCluster_engineV3
--- PASS: TestAccAzureRMKustoCluster_basic (1409.33s)
=== CONT  TestAccAzureRMKustoCluster_withTags
--- PASS: TestAccAzureRMKustoCluster_sku (1914.09s)
=== CONT  TestAccAzureRMKustoCluster_identitySystemAssigned
--- PASS: TestAccAzureRMKustoCluster_withTags (1365.42s)
=== CONT  TestAccAzureRMKustoCluster_zones
--- PASS: TestAccAzureRMKustoCluster_engineV3 (1682.15s)
=== CONT  TestAccAzureRMKustoCluster_optimizedAutoScale
--- PASS: TestAccAzureRMKustoCluster_identitySystemAssigned (1470.83s)
=== CONT  TestAccAzureRMKustoCluster_languageExtensions
    TestAccAzureRMKustoCluster_zones: testing.go:684: Step 0 error: Check failed: Check 3/3 error: azurerm_kusto_cluster.test: Attribute 'zones.0' expected "1", got "2"
--- FAIL: TestAccAzureRMKustoCluster_zones (1582.72s)
=== CONT  TestAccAzureRMKustoCluster_update
--- PASS: TestAccAzureRMKustoCluster_optimizedAutoScale (2296.77s)
--- PASS: TestAccAzureRMKustoCluster_languageExtensions (2731.64s)
--- PASS: TestAccAzureRMKustoCluster_update (2664.86s)

TestAccAzureRMKustoCluster_zones fails in master too
Also, I fixed TestAccAzureRMKustoCluster_optimizedAutoScale, let me know if I need to do that fix in separate PR

[mbfrahry]

LGTM!

[ghost]

This has been released in version 2.40.0 of the provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading. As an example:

provider "azurerm" {
    version = "~> 2.40.0"
}
# ... other configuration ...

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 hashibot-feedback@hashicorp.com. Thanks!