ORY Hydra is built cloud native and implements 12factor principles. The Docker Image is 5 MB light and versioned with verbose upgrade instructions and detailed changelogs. Auto-scaling, migrations, health checks, it all works with zero additional work required. It is possible to run ORY Hydra on any platform, including but not limited to OSX, Linux, Windows, ARM, FreeBSD and more.
ORY Hydra has two operational modes:
- In-memory: This mode does not work with more than one instance ("cluster") and any state is lost after restarting the instance. ORY Hydra uses SQLite with in-memory mode to achieve this.
- SQL: This mode works with more than one instance and state is not lost after restarts.
No further dependencies are required for a production-ready instance.
For more information on configuring
The SQL adapter supports PostgreSQL 9.6+, MySQL 5.7+ and SQLite. Please note that older MySQL versions have issues with ORY Hydra's database schema. For more information go here.
If you do run the SQL adapter, you must first create the database schema. The
hydra serve command does not do this automatically, instead you must run
hydra migrate sql to create the schemas. The
hydra migrate sql command also
runs database migrations in case of an upgrade. Please follow the
upgrade instructions to
see when you need to run this command. Always create a backup before running
hydra migrate sql!
Running SQL migrations in Docker is very easy, check out the docker-compose example to see how we did it!
For more information on configuring the DSN (Data-Source-Name), head over to Deployment Fundamentals and Requirements.