1. Exchanging Inference Data with Snowflake Stages


    Snowflake stages are used to store data files that you will use for data loading and unloading within the Snowflake environment. They're essentially a logical storage area where files can reside before they're loaded into Snowflake tables, or after they're unloaded from tables.

    To facilitate the exchange of inference data with Snowflake stages, you'll typically perform the following steps:

    1. Create a stage in Snowflake to hold your data.
    2. Use that stage to load data into Snowflake tables or unload from tables.
    3. Manage access to and properties of the stage as needed.

    Below, I have written a Pulumi program in Python that shows how to create a Snowflake stage using the Pulumi Snowflake provider. The program uses the snowflake.Stage resource, which represents a stage in Snowflake, and for demonstration purposes, it's configured with some basic options. You will need to adjust these to match your actual Snowflake environment and requirements.

    Note that you'll need to have Pulumi installed and configured, along with the necessary Snowflake provider setup. Please refer to Pulumi's documentation on setting up your Snowflake provider.

    import pulumi import pulumi_snowflake as snowflake # Create a Snowflake stage which holds data files. inference_data_stage = snowflake.Stage("inferenceDataStage", # Replace these attributes with your actual database and schema names. database="your_database_name", schema="your_schema_name", url="s3://your-bucket-name/path/", # Specify the URL to the S3 bucket where your data is stored. storage_integration="your_storage_integration_name", # If using external cloud storage, specify your storage integration. ) # Optionally, you can create granular permissions using the StageGrant resource. stage_grant = snowflake.StageGrant("inferenceDataStageGrant", stage_name=inference_data_stage.name, database_name="your_database_name", schema_name="your_schema_name", # Grants usage privilege to a role on the stage. privileges=["USAGE"], roles=["your_role_name"], # Specify the role which you want to grant usage privilege on the stage. ) # The URL of the stage can be exported if you need to reference it in other processes or outputs. pulumi.export("stage_url", inference_data_stage.url)

    Here's a break down of what this script is doing:

    1. We import the Pulumi libraries for general use, and specifically the Pulumi Snowflake provider.
    2. We then define a new Snowflake stage with the snowflake.Stage resource, providing it with a database name, schema name, the location of the data (in this case an S3 URL), and the storage integration name.
    3. We also define a snowflake.StageGrant resource, which sets the privileges for a role on this stage. This allows specific users or applications to access the stage, which is important for managing security and access controls.
    4. At the end of the script, we export the URL of the created stage. It's a good practice to export crucial information that can be required in later stages of your infrastructure management or by other Pulumi stacks.

    Remember to replace placeholders like your_database_name, your_schema_name, your-bucket-name, your_storage_integration_name, and your_role_name with values that correspond to your specific Snowflake setup.

    This simple program could be the building block for a more complex system where you might be orchestrating the ingestion and processing of inference data within Snowflake using Pulumi.