@Yella Vanga Thanks for your post!
And, move Static web app connected to Cassandra db private endpoint to New Subnet
Regarding moving private endpoint to a new subnet, you can create new private endpoint connection to new subnet as replacement.
For additional details, refer below answers
- https://learn.microsoft.com/en-us/answers/questions/1295954/how-to-migrate-a-keyvault-private-endpoint-to-a-ne
- https://learn.microsoft.com/en-us/answers/questions/1043373/mutiple-private-endpoints-to-a-single-private-link
can we do without any outage?
For a limited time, you can configure firewall rules to allow connections from trusted clients. For additional details, please refer https://learn.microsoft.com/en-us/azure/cosmos-db/how-to-configure-private-endpoints?tabs=arm-bicep#adding-private-endpoints-to-an-existing-azure-cosmos-db-account-with-no-downtime