210 lines
8.4 KiB
Markdown
210 lines
8.4 KiB
Markdown
---
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layout: default
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title: Configuration
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nav_order: 4
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has_children: true
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---
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# Configuration
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Authelia has several methods of configuration available to it. The order of precedence is as follows:
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1. [Secrets](./secrets.md)
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2. [Environment Variables](#environment)
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3. [Files](#files) (in order of them being specified)
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This order of precedence puts higher weight on things higher in the list. This means anything specified in the
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[files](#files) is overridden by [environment variables](#environment) if specified, and anything specified by
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[environment variables](#environment) is overridden by [secrets](./secrets.md) if specified.
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## Files
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When running **Authelia**, you can specify your configuration by passing the file path as shown below.
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```console
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$ authelia --config config.custom.yml
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```
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You can have multiple configuration files which will be merged in the order specified. If duplicate keys are specified
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the last one to be specified is the one that takes precedence. Example:
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```console
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$ authelia --config configuration.yml --config config-acl.yml --config config-other.yml
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$ authelia --config configuration.yml,config-acl.yml,config-other.yml
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```
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Authelia's configuration files use the YAML format. A template with all possible options can be found at the root of the
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repository [here](https://github.com/authelia/authelia/blob/master/config.template.yml).
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### Docker
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By default, the container looks for a configuration file at `/config/configuration.yml`. This can be changed using the `command` setting.
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## Environment
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You may also provide the configuration by using environment variables. Environment variables are applied after the
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configuration file meaning anything specified as part of the environment overrides the configuration files. The
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environment variables must be prefixed with `AUTHELIA_`.
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_**Please Note:** It is not possible to configure_ the _access control rules section or OpenID Connect identity provider
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section using environment variables at this time._
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_**Please Note:** There are compatability issues with Kubernetes and this particular configuration option. You must
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ensure you have the `enableServiceLinks: false` setting in your pod spec. You can read more about this in the
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[migration documentation](./migration.md#kubernetes-4300)._
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Underscores replace indented configuration sections or subkeys. For example the following environment variables replace
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the configuration snippet that follows it:
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```
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AUTHELIA_LOG_LEVEL=info
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AUTHELIA_SERVER_READ_BUFFER_SIZE=4096
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```
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```yaml
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log:
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level: info
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server:
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read_buffer_size: 4096
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```
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# Documentation
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We document the configuration in two ways:
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1. The configuration yaml default has comments documenting it. All documentation lines start with `##`. Lines starting
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with a single `#` are yaml configuration options which are commented to disable them or as examples.
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2. This documentation site. Generally each section of the configuration is in its own section of the documentation
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site. Each configuration option is listed in its relevant section as a heading, under that heading generally are two
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or three colored labels.
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- The `type` label is purple and indicates the yaml value type of the variable. It optionally includes some
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additional information in parentheses.
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- The `default` label is blue and indicates the default value if you don't define the option at all. This is not the
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same value as you will see in the examples in all instances, it is the value set when blank or undefined.
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- The `required` label changes color. When required it will be red, when not required it will be green, when the
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required state depends on another configuration value it is yellow.
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# Validation
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Authelia validates the configuration when it starts. This process checks multiple factors including configuration keys
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that don't exist, configuration keys that have changed, the values of the keys are valid, and that a configuration
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key isn't supplied at the same time as a secret for the same configuration option.
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You may also optionally validate your configuration against this validation process manually by using the validate-config
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option with the Authelia binary as shown below. Keep in mind if you're using [secrets](./secrets.md) you will have to
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manually provide these if you don't want to get certain validation errors (specifically requesting you provide one of
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the secret values). You can choose to ignore them if you know what you're doing. This command is useful prior to
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upgrading to prevent configuration changes from impacting downtime in an upgrade. This process does not validate
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integrations, it only checks that your configuration syntax is valid.
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```console
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$ authelia validate-config --config configuration.yml
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```
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# Regex
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We have several sections of configuration that utilize regular expressions. It's recommended to validate your regex
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manually either via tools like [Rego](https://regoio.herokuapp.com/) or some other means.
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It's important when attempting to utilize a backslash that it's utilized correctly. The YAML parser is likely to parse
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this as you trying to use YAML escape syntax instead of regex escape syntax. To avoid this use single quotes instead of
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no quotes or double quotes.
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Good Example:
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```yaml
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domain_regex: '^(admin|secure)\.example\.com$'
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```
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Bad Example:
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```yaml
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domain_regex: "^(admin|secure)\.example\.com$"
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```
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# Duration Notation Format
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We have implemented a string/integer based notation for configuration options that take a duration of time. This section
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describes the implementation of this. You can use this implementation in various areas of configuration such as:
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- session:
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- expiration
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- inactivity
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- remember_me_duration
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- regulation:
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- ban_time
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- find_time
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- ntp:
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- max_desync
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- webauthn:
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- timeout
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The way this format works is you can either configure an integer or a string in the specific configuration areas. If you
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supply an integer, it is considered a representation of seconds. If you supply a string, it parses the string in blocks
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of quantities and units (number followed by a unit letter). For example `5h` indicates a quantity of 5 units of `h`.
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While you can use multiple of these blocks in combination, ee suggest keeping it simple and use a single value.
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## Duration Notation Format Unit Legend
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| Unit | Associated Letter |
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|:-------:|:-----------------:|
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| Years | y |
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| Months | M |
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| Weeks | w |
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| Days | d |
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| Hours | h |
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| Minutes | m |
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| Seconds | s |
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## Duration Notation Format Examples
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| Desired Value | Configuration Examples |
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|:---------------------:|:-------------------------------------:|
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| 1 hour and 30 minutes | `90m` or `1h30m` or `5400` or `5400s` |
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| 1 day | `1d` or `24h` or `86400` or `86400s` |
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| 10 hours | `10h` or `600m` or `9h60m` or `36000` |
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# TLS Configuration
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Various sections of the configuration use a uniform configuration section called TLS. Notably LDAP and SMTP.
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This section documents the usage.
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## Server Name
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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default: ""
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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The key `server_name` overrides the name checked against the certificate in the verification process. Useful if you
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require to use a direct IP address for the address of the backend service but want to verify a specific SNI.
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## Skip Verify
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<div markdown="1">
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type: boolean
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{: .label .label-config .label-purple }
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default: false
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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The key `skip_verify` completely negates validating the certificate of the backend service. This is not recommended,
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instead you should tweak the `server_name` option, and the global option [certificates directory](./miscellaneous.md#certificates_directory).
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## Minimum Version
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<div markdown="1">
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type: string
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{: .label .label-config .label-purple }
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default: TLS1.2
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{: .label .label-config .label-blue }
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required: no
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{: .label .label-config .label-green }
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</div>
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The key `minimum_version` controls the minimum TLS version Authelia will use when opening TLS connections.
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The possible values are `TLS1.3`, `TLS1.2`, `TLS1.1`, `TLS1.0`. Anything other than `TLS1.3` or `TLS1.2`
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are very old and deprecated. You should avoid using these and upgrade your backend service instead of decreasing
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this value.
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