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

---
id: config
slug: /config
title: Configuration
toc_max_heading_level: 2
---

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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.

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## General

### `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`

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`

The ID of a Storage tenant.

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

<br />

### `REGION`

Region of your S3 bucket.

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

<br />

### `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`

The URL of your PostgREST server.

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

<br />

### `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`

The URL of your Postgres database.

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

<br />

### `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`

The maximum file size allowed.

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

<br />

### `STORAGE_BACKEND`

The storage provider.

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

<br />

### `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 />

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## Multi-tenant

### `IS_MULTITENANT`

Operate across multiple tenants.

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

<br />

### `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`

TBD.

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

<br />

### `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`

Secure API key for administrative endpoints.

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

<br />

### `ENCRYPTION_KEY`

An key for encryting/decrypting secrets.

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

<br />