You can configure the URLs for various Ory Kratos configurations using environment variables. Here's how you can do it for different configurations: 1. Settings UI: Set the

SELFSERVICE_FLOWS_SETTINGS_UI_URL

environment variable to your settings UI URL. For example:

export SELFSERVICE_FLOWS_SETTINGS_UI_URL=<http://my-app.com/settings>

[Source](https://www.ory.sh/docs/kratos/fallback/settings) 2. Registration UI: Set the

SELFSERVICE_FLOWS_REGISTRATION_UI_URL

environment variable to your registration UI URL. For example:

export SELFSERVICE_FLOWS_REGISTRATION_UI_URL=<http://my-app.com/registration>

[Source](https://www.ory.sh/docs/kratos/fallback/registration) 3. Recovery UI: Set the

SELFSERVICE_FLOWS_RECOVERY_UI_URL

environment variable to your recovery UI URL. For example:

export SELFSERVICE_FLOWS_RECOVERY_UI_URL=<http://my-app.com/recovery>

[Source](https://www.ory.sh/docs/kratos/fallback/recovery) 4. Login UI: Set the

SELFSERVICE_FLOWS_LOGIN_UI_URL

environment variable to your login UI URL. For example:

export SELFSERVICE_FLOWS_LOGIN_UI_URL=<http://my-app.com/login>

[Source](https://www.ory.sh/docs/kratos/fallback/login) 5. Default Return URL: Set the

SELFSERVICE_DEFAULT_BROWSER_RETURN_URL

environment variable to your default return URL. For example:

export SELFSERVICE_DEFAULT_BROWSER_RETURN_URL=<http://my-app.com/dashboard>

[Source](https://www.ory.sh/docs/kratos/fallback/default_return_to) 6. MFA UI: Set the

SELFSERVICE_FLOWS_MFA_UI_URL

environment variable to your MFA UI URL. For example:

export SELFSERVICE_FLOWS_MFA_UI_URL=<http://my-app.com/mfa>

[Source](https://www.ory.sh/docs/kratos/fallback/mfa) 7. Verification UI: Set the

SELFSERVICE_FLOWS_VERIFICATION_UI_URL

environment variable to your verification UI URL. For example:

export SELFSERVICE_FLOWS_VERIFICATION_UI_URL=<http://my-app.com/verify>

[Source](https://www.ory.sh/docs/kratos/fallback/verification) 8. Error UI: Set the

SELFSERVICE_FLOWS_ERROR_UI_URL

environment variable to your error UI URL. For example:

export SELFSERVICE_FLOWS_ERROR_UI_URL=<http://my-app.com/error>

[Source](https://www.ory.sh/docs/kratos/fallback/error) Remember, environment variables take precedence over config file values. Nested paths get mapped to config values by putting an underscore

_

between every level. For example,

selfservice.flows.settings.ui_url

becomes

SELFSERVICE_FLOWS_SETTINGS_UI_URL=<value>

. [Source](https://www.ory.sh/docs/kratos/configuring) For configuring OIDC providers, it's recommended to set the full JSON array as an environment variable. However, it's not recommended to use environment variables for this purpose as the data object is complex and getting the syntax right is difficult. [Source](https://www.ory.sh/docs/self-hosted/kratos/configuration/oidc#environment-variables)

Yes, you can provide the configuration to Ory Kratos through an environment variable. The configuration values set in the environment variables will take precedence over the values set in the configuration file. To set a configuration value, you need to use the configuration key, replace the dots (

.

) with underscores (

_

), and convert it to uppercase. For example, the configuration key

selfservice.flows.settings.ui_url

becomes the environment variable

SELFSERVICE_FLOWS_SETTINGS_UI_URL

. Here's an example of how you can set it:

bash export SELFSERVICE_FLOWS_SETTINGS_UI_URL=<http://my-app.com/settings>

After setting the environment variable, Ory Kratos will use this value for the settings UI URL instead of the value defined in the configuration file. However, please note that for complex objects like OIDC providers, it's not recommended to use environment variables due to the complexity of the data object. In such cases, it's recommended to set the full JSON array as an environment variable. For more information on how to load configuration from environment variables, you can refer to the [Ory documentation](https://www.ory.sh/docs/ecosystem/configuring#loading-configuration-from-environment-variables).