supabase/apps/reference/_storage/generated/config.mdx

---
id: config
slug: /config
title: Configuration
toc_max_heading_level: 3
---

<!-- AUTOGENERATED: DO NOT EDIT DIRECTLY -->

A sample `.env` file is located in the [storage repository](https://github.com/supabase/storage-api/blob/master/.env.sample).

Use this file to configure your environment variables for your Storage server.

<!-- AUTOGENERATED: DO NOT EDIT DIRECTLY -->

## General {#general}

### `ANON_KEY` {#ANON_KEY}

A long-lived JWT with anonymous Postgres privileges.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `SERVICE_KEY` {#SERVICE_KEY}

A long-lived JWT with Postgres privileges to bypass Row Level Security.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `TENANT_ID` {#TENANT_ID}

The ID of a Storage tenant.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `REGION` {#REGION}

Region of your S3 bucket.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `GLOBAL_S3_BUCKET` {#GLOBAL_S3_BUCKET}

Name of your S3 bucket.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `POSTGREST_URL` {#POSTGREST_URL}

The URL of your PostgREST server.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `PGRST_JWT_SECRET` {#PGRST_JWT_SECRET}

A JWT Secret for the PostgREST database.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `DATABASE_URL` {#DATABASE_URL}

The URL of your Postgres database.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `PGOPTIONS` {#PGOPTIONS}

Additional configuration parameters for Postgres startup.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `FILE_SIZE_LIMIT` {#FILE_SIZE_LIMIT}

The maximum file size allowed.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `STORAGE_BACKEND` {#STORAGE_BACKEND}

The storage provider.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `FILE_STORAGE_BACKEND_PATH` {#FILE_STORAGE_BACKEND_PATH}

The location storage when the "STORAGE_BACKEND" is set to "file".

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

<!-- AUTOGENERATED: DO NOT EDIT DIRECTLY -->

## Multi-tenant {#multitenant}

### `IS_MULTITENANT` {#IS_MULTITENANT}

Operate across multiple tenants.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `MULTITENANT_DATABASE_URL` {#MULTITENANT_DATABASE_URL}

The URL of the multitenant Postgres database.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `X_FORWARDED_HOST_REGEXP` {#X_FORWARDED_HOST_REGEXP}

TBD.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `POSTGREST_URL_SUFFIX` {#POSTGREST_URL_SUFFIX}

The suffix for the PostgREST instance.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `ADMIN_API_KEYS` {#ADMIN_API_KEYS}

Secure API key for administrative endpoints.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />

### `ENCRYPTION_KEY` {#ENCRYPTION_KEY}

An key for encryting/decrypting secrets.

<ul>
  <li>
    Required: <code>true</code>
  </li>
  <li>
    Default: <code>None</code>
  </li>
</ul>

<br />