migrate Postgres from NERSC Spin Rancher1 to Rancher2

[heather999]

NERSC has deprecated Rancher 1 which is where we are currently running our Postgres v13 database while we waited for Rancher2 to support non-https connections. We should now move our Postgres instance to Rancher 2 and mirror the existing data in our Rancher 1 instance.

A preliminary to do list:

• [x] Stand up Postgres and PgBouncer on Rancher2, using the same v13 we are currently running
• [x] Mirror the data in the Rancher 1 instance
• [x] Pass the credentials to those that need it
• [x] Test the new Rancher 2 instance to be sure it's working
• [x] Shut down the Rancher 1 Postgres instance

[heather999]

done