67 lines
1.6 KiB
Markdown
67 lines
1.6 KiB
Markdown
---
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title: "Storage"
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description: "Storage Configuration"
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lead: "Configuring the SQL Storage."
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date: 2022-06-15T17:51:47+10:00
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draft: false
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images: []
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menu:
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configuration:
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parent: "storage"
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weight: 106100
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toc: true
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aliases:
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- /docs/configuration/storage/
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---
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__Authelia__ supports multiple storage backends. The backend is used to store user preferences, 2FA device handles and
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secrets, authentication logs, etc...
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The available storage backends are listed in the table of contents below.
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## Configuration
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{{< config-alert-example >}}
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```yaml
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storage:
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encryption_key: 'a_very_important_secret'
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local: {}
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mysql: {}
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postgres: {}
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```
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## Options
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This section describes the individual configuration options.
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### encryption_key
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{{< confkey type="string" required="yes" >}}
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*__Important Note:__ This can also be defined using a [secret](../methods/secrets.md) which is __strongly recommended__
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especially for containerized deployments.*
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The encryption key used to encrypt data in the database. We encrypt data by creating a sha256 checksum of the provided
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value, and use that to encrypt the data with the AES-GCM 256bit algorithm.
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The minimum length of this key is 20 characters.
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It's __strongly recommended__ this is a
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[Random Alphanumeric String](../../reference/guides/generating-secure-values.md#generating-a-random-alphanumeric-string) with 64 or more
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characters.
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See [security measures](../../overview/security/measures.md#storage-security-measures) for more information.
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### postgres
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See [PostgreSQL](postgres.md).
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### local
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See [SQLite](sqlite.md).
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### mysql
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See [MySQL](mysql.md).
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