docs: add production guide

docs/docs/concepts/namespaces.mdx

@@ -49,7 +49,7 @@ Because namespaces each come with an individual configuration that can even
 modify some storage specific options, it is required to manually review and run
 migrations on namespace configuration updates. Please refer to the
 [namespace migration CLI reference](../cli/keto-namespace-migrate.md) and
-[running in production guide](/TODO) to learn more about that process.
+[running in production guide](../guides/production.md) to learn more about that process.
 
 ## Naming Conventions
 

docs/docs/guides/production.md

@@ -0,0 +1,27 @@
+---
+id: production
+title: Going to Production
+---
+
+:::warn
+
+This document is still in development.
+
+:::
+
+## Database
+
+ORY Keto requires a production-grade database such as PostgreSQL, MySQL,
+CockroachDB. Do not use SQLite in production!
+
+### Write API
+
+Never expose the ORY Keto Write API to the internet unsecured. Always require
+authorization. A good practice is to not expose the Write API at all to the
+public internet and use a Zero Trust Networking Architecture within your
+intranet.
+
+## Scaling
+
+There are no additional requirements for scaling ORY Keto, just spin up
+another container!

docs/sidebar.json

@@ -18,7 +18,8 @@
     "secure",
     "guides/simple-access-check-guide",
     "guides/list-api-display-objects",
-    "guides/expand-api-display-who-has-access"
+    "guides/expand-api-display-who-has-access",
+    "guides/production"
   ],
   "Examples": ["examples/olymp-file-sharing"],
   "Reference": [