Book Image

Azure Databricks Cookbook

By : Phani Raj, Vinod Jaiswal
Book Image

Azure Databricks Cookbook

By: Phani Raj, Vinod Jaiswal

Overview of this book

Azure Databricks is a unified collaborative platform for performing scalable analytics in an interactive environment. The Azure Databricks Cookbook provides recipes to get hands-on with the analytics process, including ingesting data from various batch and streaming sources and building a modern data warehouse. The book starts by teaching you how to create an Azure Databricks instance within the Azure portal, Azure CLI, and ARM templates. You’ll work through clusters in Databricks and explore recipes for ingesting data from sources, including files, databases, and streaming sources such as Apache Kafka and EventHub. The book will help you explore all the features supported by Azure Databricks for building powerful end-to-end data pipelines. You'll also find out how to build a modern data warehouse by using Delta tables and Azure Synapse Analytics. Later, you’ll learn how to write ad hoc queries and extract meaningful insights from the data lake by creating visualizations and dashboards with Databricks SQL. Finally, you'll deploy and productionize a data pipeline as well as deploy notebooks and Azure Databricks service using continuous integration and continuous delivery (CI/CD). By the end of this Azure book, you'll be able to use Azure Databricks to streamline different processes involved in building data-driven apps.
Table of Contents (12 chapters)

Using App Configuration in an Azure Databricks notebook

In this recipe, you will learn how to use the secrets stored as configuration values in the App Configuration service in an Azure Databricks notebook.

Getting ready

You can follow along by running the steps in the 5_2.Using App Config in Notebooks notebook at https://github.com/PacktPublishing/Azure-Databricks-Cookbook/tree/main/Chapter05/.

You can find the Parquet files that will be used in this recipe at https://github.com/PacktPublishing/Azure-Databricks-Cookbook/tree/main/Common/Customer/parquetFiles.

To execute the code mentioned in the notebook, we need to get the connection string of the App Configuration service we have created. The following screenshot shows how to get the connection string for your App Configuration service. The name of the App Configuration service in this example is DevAppconfigurationRes:

Figure 5.13 – Creating a key-value configuration value

In the next...