When your development team plans to set up a new instance in europe-central2 with access requirements to an application on a Compute Engine instance in us-west1 within the same project, what would be the advisable approach following Google’s best practices?
- Establish a subnetwork in the same VPC in the europe-central2 region and provision a new instance in this subnetwork, utilizing the original instance’s private address as the endpoint.
- Employ Cloud VPN to facilitate encrypted tunnel connections between the VPCs.
- Apply VPC peering for private inter-VPC communications.
- Configure Cloud Router and BGP sessions for effective dynamic routing across VPCs.
Explanation:
The advisable approach, in line with Google’s best practices, is to establish a subnetwork in the same VPC located in the europe-central2 region and then set up a new instance within this subnetwork, making use of the private address of the original instance as the endpoint. This strategy provides a streamlined and secure method of communication between instances in different regions, under the same VPC, without the necessity for more complex solutions. The use of Cloud VPN, VPC peering, or Cloud Router with BGP sessions, while viable in certain scenarios, adds additional layers of complexity and is generally not required for internal communications within the same VPC.