Merge pull request #138 from DefangLabs/eric-datastore-snapshot-info

add snapshot info

Author: lionello

docs/concepts/managed-storage/managed-postgres.md

@@ -72,6 +72,16 @@ For a smoother experience with Defang, we recommend using Postgres 14 for your c
 
 ```
 
+## Final Snapshots
+
+When a project is deployed to a production environment any managed postgres instances are automatically configured to create a snapshot of the database before deletion. The snapshot will be named with the following format
+
+`
+<project-name>-<service>-postgres-<id>-final-snapshot
+`
+
+The AWS Console can be used to restore a snapshop into a new instance of postgres.
+
 <!-- 
 ### Major Version Updating of Engine
 

docs/concepts/managed-storage/managed-redis.md

@@ -29,3 +29,14 @@ cache:
     - mode: host
       target: 6379
 ```
+
+## Final Snapshots
+
+When a project is deployed with the `production` [deployment mode](/docs/concepts/deployment-modes) any managed redis instances are automatically
+configured to create a snapshot of the datastore before deletion. The snapshot will be named with the following format
+
+`
+<project-name>-<service>-redis-<id>-final-snapshot
+`
+
+The AWS Console can be used to restore a snapshop into a new instance of redis.