To securely ingest data from an on-premises MySQL database into BigQuery without routing through the public internet, using Datastream with Private connectivity over Cloud Interconnect is the best approach. Here's why:
Datastream for Data Replication:
Datastream provides a managed service for data replication from various sources, including on-premises databases, to Google Cloud services like BigQuery.
Cloud Interconnect:
Cloud Interconnect establishes a private connection between your on-premises data center and Google Cloud, ensuring that data transfer occurs over a secure, private network rather than the public internet.
Private Connectivity:
Using Private connectivity with Datastream leverages the established Cloud Interconnect to securely connect your on-premises MySQL database with Google Cloud. This method ensures that the data does not traverse the public internet.
Encryption:
Using Server-only encryption ensures that data is encrypted in transit between Datastream and BigQuery, adding an extra layer of security.
Steps to Implement:
Set Up Cloud Interconnect:
Establish a Cloud Interconnect between your on-premises data center and Google Cloud to create a private connection.
Configure Datastream:
Set up Datastream to use Private connectivity as the connection method and allocate an IP address range within your VPC network.
Use Server-only encryption to ensure secure data transfer.
Create Connection Profile:
Create a connection profile in Datastream to define the connection parameters, including the use of Cloud Interconnect and Private connectivity.
Reference:
Datastream Documentation
Cloud Interconnect Documentation
Setting Up Private Connectivity in Datastream