Compile schemas that declare RDS-only extensions on the Atlas dev database: install mock aws_commons/aws_lambda/aws_s3 extensions on the dev image so CREATE EXTENSION works and Atlas manages them end-to-end.
Connect Atlas to your database using a standard URL format. Examples for PostgreSQL, MySQL, MariaDB, SQLite, SQL Server, ClickHouse, Oracle, Snowflake, Spanner, Databricks, and more.
Use Atlas and Terraform to bootstrap a dedicated migration user on AWS RDS PostgreSQL, manage roles in one state, and manage application schema in a separate IAM-authenticated state.