To move your Azure Database for PostgreSQL flexible server from one VNet to another in different regions, you will need to follow these general steps:
- Prepare the Target VNet: Ensure that the target VNet is set up and configured properly in the destination region. This may include setting up necessary network peering, public IPs, or private endpoints as required.
- Export Resource Manager Template: You can export a Resource Manager template from the Azure portal that describes your current setup. This will help you replicate the configuration in the new region.
- Modify the Template: Adjust the exported template parameters to match the destination region. Ensure that the target server name is different from the source server name.
- Redeploy the Template: Deploy the modified template to the new region. This will create a new instance of your PostgreSQL flexible server in the target VNet.
- Migrate Data: You will need to migrate the data from the old server to the new one. This typically involves stopping all database activity on the source server, using tools like
pg_dumpto export the database, and then importing it into the new server. - Update Clients: After the migration, reconfigure your clients to point to the new server and perform functional tests to ensure everything is working as expected.
- Clean Up: Once you have verified that the new server is functioning correctly, you can decommission the old server if it is no longer needed.
Note that there may be downtime involved during the migration process, so plan accordingly.