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For connecting a private CloudSQL instance we need a proxy GCE VM that helps us to connect Cloud Data Fusion to CloudSQL.
Instructions
Create a private Cloud Data Fusion instance as per instructions here. This involves
Setting up VPC network
Allocate Allocating IP range
Create a private Cloud SQL instance in the same VPC network as Cloud Data Fusion instance.
Once the instance is created, go to the CloudSQL instance details page to the “Connect to this instance” section and copy the IP and the connection name.
Now that both the instances are set up, create a private GCE VM (with only internal IP) using the following gcloud command:
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