Use a continuous Database Migration Service job and VPC peering to migrate a PostgreSQL database from a VM to Cloud SQL.

• Database Migration
• Migrate a database to Cloud SQL for PostgreSQL by using Database Migration Service
• VPC Network Peering
  • connects two VPC networks: all subnets can use internal IPv4 addresses
  • Each network must have a peering configuration setup and then the peering state changes to ACTIVE.

An example with gcloud that lets cats talk to dogs:

gcloud compute networks peerings create cutecatspeering \
    --network=catnet \
    --peer-project dogsbriedev \
    --peer-network dognet 

gcloud compute networks peerings list

Repeat the process over in the dogsbriedev project to create a similar peering configuration

• Q: How do you check the ACTIVE status?

Clean it up:

gcloud compute networks peerings delete cutecats \
    --network catnet

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Cloud SQL