Skip to content

Latest commit

 

History

History
145 lines (113 loc) · 7.75 KB

pipeline.md

File metadata and controls

145 lines (113 loc) · 7.75 KB
Raw
subcategory
Compute

databricks_pipeline Resource

Use databricks_pipeline to deploy Delta Live Tables.

Example Usage

resource "databricks_notebook" "dlt_demo" {
  #...
}

resource "databricks_repo" "dlt_demo" {
  #...
}

resource "databricks_pipeline" "this" {
  name    = "Pipeline Name"
  storage = "/test/first-pipeline"
  configuration = {
    key1 = "value1"
    key2 = "value2"
  }

  cluster {
    label       = "default"
    num_workers = 2
    custom_tags = {
      cluster_type = "default"
    }
  }

  cluster {
    label       = "maintenance"
    num_workers = 1
    custom_tags = {
      cluster_type = "maintenance"
    }
  }

  library {
    notebook {
      path = databricks_notebook.dlt_demo.id
    }
  }

  library {
    file {
      path = "${databricks_repo.dlt_demo.path}/pipeline.sql"
    }
  }

  continuous = false

  notification {
    email_recipients = ["[email protected]", "[email protected]"]
    alerts = [
      "on-update-failure",
      "on-update-fatal-failure",
      "on-update-success",
      "on-flow-failure"
    ]
  }
}

Argument Reference

The following arguments are supported:

  • name - A user-friendly name for this pipeline. The name can be used to identify pipeline jobs in the UI.
  • storage - A location on DBFS or cloud storage where output data and metadata required for pipeline execution are stored. By default, tables are stored in a subdirectory of this location. Change of this parameter forces recreation of the pipeline. (Conflicts with catalog).
  • configuration - An optional list of values to apply to the entire pipeline. Elements must be formatted as key:value pairs.
  • library blocks - Specifies pipeline code and required artifacts. Syntax resembles library configuration block with the addition of a special notebook & file library types that should have the path attribute. Right now only the notebook & file types are supported.
  • cluster blocks - Clusters to run the pipeline. If none is specified, pipelines will automatically select a default cluster configuration for the pipeline. Please note that DLT pipeline clusters are supporting only subset of attributes as described in documentation. Also, note that autoscale block is extended with the mode parameter that controls the autoscaling algorithm (possible values are ENHANCED for new, enhanced autoscaling algorithm, or LEGACY for old algorithm).
  • continuous - A flag indicating whether to run the pipeline continuously. The default value is false.
  • development - A flag indicating whether to run the pipeline in development mode. The default value is false.
  • photon - A flag indicating whether to use Photon engine. The default value is false.
  • serverless - An optional flag indicating if serverless compute should be used for this DLT pipeline. Requires catalog to be set, as it could be used only with Unity Catalog.
  • catalog - The name of catalog in Unity Catalog. Change of this parameter forces recreation of the pipeline. (Conflicts with storage).
  • target - The name of a database (in either the Hive metastore or in a UC catalog) for persisting pipeline output data. Configuring the target setting allows you to view and query the pipeline output data from the Databricks UI.
  • edition - optional name of the product edition. Supported values are: CORE, PRO, ADVANCED (default). Not required when serverless is set to true.
  • channel - optional name of the release channel for Spark version used by DLT pipeline. Supported values are: CURRENT (default) and PREVIEW.
  • allow_duplicate_names - Optional boolean flag. If false, deployment will fail if name conflicts with that of another pipeline. default is false.
  • deployment - Deployment type of this pipeline. Supports following attributes:
    • kind - The deployment method that manages the pipeline.
    • metadata_file_path - The path to the file containing metadata about the deployment.
  • filters - Filters on which Pipeline packages to include in the deployed graph. This block consists of following attributes:
    • include - Paths to include.
    • exclude - Paths to exclude.
  • gateway_definition - The definition of a gateway pipeline to support CDC. Consists of following attributes:
    • connection_id - Immutable. The Unity Catalog connection this gateway pipeline uses to communicate with the source.
    • gateway_storage_catalog - Required, Immutable. The name of the catalog for the gateway pipeline's storage location.
    • gateway_storage_name - Required. The Unity Catalog-compatible naming for the gateway storage location. This is the destination to use for the data that is extracted by the gateway. Delta Live Tables system will automatically create the storage location under the catalog and schema.
    • gateway_storage_schema - Required, Immutable. The name of the schema for the gateway pipelines's storage location.

notification block

DLT allows to specify one or more notification blocks to get notifications about pipeline's execution. This block consists of following attributes:

  • email_recipients (Required) non-empty list of emails to notify.
  • alerts (Required) non-empty list of alert types. Right now following alert types are supported, consult documentation for actual list
    • on-update-success - a pipeline update completes successfully.
    • on-update-failure - a pipeline update fails with a retryable error.
    • on-update-fatal-failure - a pipeline update fails with a non-retryable (fatal) error.
    • on-flow-failure - a single data flow fails.

ingestion_definition block

The configuration for a managed ingestion pipeline. These settings cannot be used with the library, target or catalog settings. This block consists of following attributes:

  • connection_name - Immutable. The Unity Catalog connection this ingestion pipeline uses to communicate with the source. Specify either ingestion_gateway_id or connection_name.
  • ingestion_gateway_id - Immutable. Identifier for the ingestion gateway used by this ingestion pipeline to communicate with the source. Specify either ingestion_gateway_id or connection_name.
  • objects - Required. Settings specifying tables to replicate and the destination for the replicated tables.
  • table_configuration - Configuration settings to control the ingestion of tables. These settings are applied to all tables in the pipeline.

Attribute Reference

In addition to all arguments above, the following attributes are exported:

  • id - Canonical unique identifier of the DLT pipeline.
  • url - URL of the DLT pipeline on the given workspace.

Import

The resource job can be imported using the id of the pipeline

terraform import databricks_pipeline.this <pipeline-id>

Related Resources

The following resources are often used in the same context: