POST_START

Managing Production External Location Authorization for Governed Cloud Storage

I started my day by reviewing the latest security and governance requirements for our cloud storage infrastructure. Our team is moving all data ingestion processes into a governed environment, and one of the key tasks is to ensure that external locations—specifically the production_raw location—are properly authorized and secured. I needed to understand the current state of authorization for this location and ensure that the right users have the right permissions at the right time.

Understanding the Current External Location Configuration

I began by running the DESCRIBE EXTERNAL LOCATION production_raw; command to get a clear picture of the existing setup. This command provides essential details such as the location’s path, format, and current access controls.

DESCRIBE EXTERNAL LOCATION production_raw;

I noticed that the location is configured to point to a secure S3 bucket, and it’s set up with a specific format for data ingestion. However, the output didn’t include any information about who has access to this location. I realized I needed to check the permissions explicitly.

Checking Existing Permissions for the External Location

Next, I used the SHOW GRANTS ON EXTERNAL LOCATION production_raw; command to see which roles or users currently have access to this location. This step is crucial for understanding the current access landscape before making any changes.

SHOW GRANTS ON EXTERNAL LOCATION production_raw;

The results showed that no roles or users had been granted access yet. This was a red flag because the ingestion processes were already dependent on this location, and without proper access, they would fail. I needed to grant the necessary permissions to the appropriate roles.

Granting Read Access to Ingestion Readers

I decided to start by granting read access to the ingestion_readers role. This group is responsible for reading data from the production_raw location, so they need the ability to read files without modifying them.

GRANT READ FILES ON EXTERNAL LOCATION production_raw TO `ingestion_readers`;

I ran this command and verified that the grant was successful. I now had a clear understanding of what permissions the ingestion_readers role had access to. This step ensured that the data consumers could access the raw data without any issues.

Granting Write Access to Ingestion Writers

After securing read access, I moved on to granting write access to the ingestion_writers role. This role is responsible for writing new data to the production_raw location, so they need the ability to add files without overwriting or deleting existing data.

GRANT WRITE FILES ON EXTERNAL LOCATION production,raw TO `ingestion_writers`;

I executed this command and confirmed that the write permission was successfully assigned. This was a critical step for ensuring that the ingestion pipeline could reliably deposit new data into the raw storage location.

Verifying the Final Permissions

To make sure that all the permissions were correctly applied, I ran the SHOW GRANTS ON EXTERNAL LOCATION production_raw; command again. This final check helped me confirm that both the ingestion_readers and ingestion_writers roles had the appropriate access levels.

SHOW GRANTS ON EXTERNAL LOCATION production_raw;

The output confirmed that the permissions were in place and that the roles were correctly assigned. I now had a secure and properly governed external location that supported our data ingestion workflows.

By following these steps, I ensured that the production_raw location was both accessible to the right users and protected from unauthorized access. This process reinforced the importance of governance in cloud storage and helped me build a more secure and reliable data pipeline.