# PostgreSQL Database Deployment We're going to use PostgreSQL database as a storage for Service Registry so we need to setup the database first and make sure it's ready to use. There are plenty of options for PostgreSQL operators or containers that can be installed on OpenShift. You can use either commercial or community version that suites your environment and requirement. This guide will show you how to deploy PostgreSQL database using [Crunchy Postgres for Kubernetes operator](https://github.com/CrunchyData/postgres-operator). ***NOTE:*** You can use existing PostgreSQL database (if exists) or run your own PostgreSQL containers cluster without using the operator. Or you can use differnt operator from marketplace or opensource community. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://audomsak.gitbook.io/red-hat-service-registry/installation/postgresql-db-deployment.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.