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That looks like the host is not set (`...tcp :5432...`), what is your provider code?

```import pulumi_postgresql as postgresql

endpoint="vpce-e0....<http://2.vpce.amazonaws.com|2.vpce.amazonaws.com>"
username="..."
password="..."
postgresql.Provider('postgres',
                                            host=endpoint,
                                            username=username,
                                            password=password,
                                            database='postgres',
                                            sslmode="require",
                                            expected_version="11.4"
                                            )

postgresql.Database("some-db",name="some-db")```
Here I’ve made a test module to reproduce the issue ^^^

Looks like I didn’t realize how to properly set the provider configuration

Fixed by adding a provider configuration in opts