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wip: texas out of beta
Co-Authored-By: Sindre Rødseth Hansen <[email protected]>
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‎docs/auth/entra-id/how-to/consume-m2m.md

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Depending on how you communicate with the API you're consuming, [configure the appropriate outbound access policies](../../../workloads/how-to/access-policies.md#outbound-access).
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{%- if tenant() == "nav" %}
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???+ warning "Use webproxy for outbound network connectivity from on-premises environments"
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If you're on-premises, you must enable and use [`webproxy`](../../../workloads/application/reference/application-spec.md#webproxy) to access Entra ID.
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{%- endif %}
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## Acquire token
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Now you can request a new token for the API that you want to consume.
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To acquire a token, you can either:
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- [acquire tokens with Texas](#acquire-tokens-with-texas), or
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- [acquire tokens manually](#acquire-tokens-manually) in your application
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### Acquire tokens with Texas
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{% set identity_provider = 'azuread' %}
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{% set target = 'api://<cluster>.<namespace>.<other-api-app-name>/.default' %}
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{% set target_description = 'The intended _audience_ (target API or recipient) of the new token.' %}
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{% include 'auth/partials/token.md' %}
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### Acquire tokens manually
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The token request is an HTTP POST request.
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It must have the `Content-Type` header set to `application/x-www-form-urlencoded`.
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The body of the request should contain the following parameters:
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| Parameter | Example Value | Description |
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|:----------------|:------------------------------------------------------------|:----------------------------------------------------------------------------------------------------------------|
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| `client_id` | `60dea49a-255b-48b5-b0c0-0974ac1c0b53` | Client identifier for your application. Set to the [`AZURE_APP_CLIENT_ID` environment variable][variables-ref]. |
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| `client_secret` | `<some-secret>` | Client secret for your application. Set to the [`AZURE_APP_CLIENT_SECRET` environment variable][variables-ref]. |
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| `grant_type` | `client_credentials` | Always `client_credentials`. |
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| `scope` | `api://<cluster>.<namespace>.<other-api-app-name>/.default` | The intended _audience_ (target API or recipient) of the new token. |
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[variables-ref]: ../reference/README.md#variables-for-acquiring-tokens
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Send the request to the `token_endpoint`, i.e. the URL found in the [`AZURE_OPENID_CONFIG_TOKEN_ENDPOINT`][variables-ref] environment variable:
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```http title="Token request"
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POST ${AZURE_OPENID_CONFIG_TOKEN_ENDPOINT} HTTP/1.1
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Content-Type: application/x-www-form-urlencoded
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client_id=${AZURE_APP_CLIENT_ID]&
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client_secret=${AZURE_APP_CLIENT_SECRET}&
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grant_type=client_credentials&
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scope=api://<cluster>.<namespace>.<other-api-app-name>/.default
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```
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```json title="Successful response"
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{
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"access_token" : "eyJ0eX[...]",
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"expires_in" : 3599,
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...
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}
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```
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Your application does not need to validate this token.
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!!! tip "Token Caching"
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The `expires_in` field denotes the lifetime of the token in seconds.
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**Cache and reuse the token until it expires** to minimize network latency impact.
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A safe cache key for this flow is `key = $scope`.
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## Consume API
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Once you have acquired a new token, you can finally consume the target API by using the token as a [Bearer token](../../explanations/README.md#bearer-token):

‎docs/auth/entra-id/how-to/consume-obo.md

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Depending on how you communicate with the API you're consuming, [configure the appropriate outbound access policies](../../../workloads/how-to/access-policies.md#outbound-access).
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{%- if tenant() == "nav" %}
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???+ warning "Use webproxy for outbound network connectivity from on-premises environments"
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If you're on-premises, you must enable and use [`webproxy`](../../../workloads/application/reference/application-spec.md#webproxy) to access Entra ID.
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{%- endif %}
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## Exchange token
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Now you can exchange the employees subject token for a new token targeting the API that you want to consume.
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To exchange a token, you can either:
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- [exchange tokens with Texas](#exchange-tokens-with-texas), or
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- [exchange tokens manually](#exchange-tokens-manually) in your application
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### Exchange tokens with Texas
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Now you can exchange the employee's subject token for a new token, targeting the API that you want to consume.
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{% set identity_provider = 'azuread' %}
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{% set target = 'api://<cluster>.<namespace>.<other-api-app-name>/.default' %}
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{% include 'auth/partials/token-exchange.md' %}
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### Exchange tokens manually
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The token request is an HTTP POST request.
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It must have the `Content-Type` header set to `application/x-www-form-urlencoded`.
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The body of the request should contain the following parameters:
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| Parameter | Example Value | Description |
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|:----------------------|:------------------------------------------------------------|:----------------------------------------------------------------------------------------------------------------|
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| `assertion` | `eyJraWQ...` | The employee's subject token from the inbound request. Token that should be exchanged. |
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| `client_id` | `60dea49a-255b-48b5-b0c0-0974ac1c0b53` | Client identifier for your application. Set to the [`AZURE_APP_CLIENT_ID` environment variable][variables-ref]. |
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| `client_secret` | `<some-secret>` | Client secret for your application. Set to the [`AZURE_APP_CLIENT_SECRET` environment variable][variables-ref]. |
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| `grant_type` | `urn:ietf:params:oauth:grant-type:jwt-bearer` | Always `urn:ietf:params:oauth:grant-type:jwt-bearer`. |
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| `requested_token_use` | `on_behalf_of` | Always `on_behalf_of`. |
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| `scope` | `api://<cluster>.<namespace>.<other-api-app-name>/.default` | The intended _audience_ (target API or recipient) of the new token. |
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[variables-ref]: ../reference/README.md#variables-for-acquiring-tokens
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Send the request to the `token_endpoint`, i.e. the URL found in the [`AZURE_OPENID_CONFIG_TOKEN_ENDPOINT`][variables-ref] environment variable:
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```http title="Token request"
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POST ${AZURE_OPENID_CONFIG_TOKEN_ENDPOINT} HTTP/1.1
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Content-Type: application/x-www-form-urlencoded
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assertion=<subject_token>&
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client_id=${AZURE_APP_CLIENT_ID}&
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client_secret=${AZURE_APP_CLIENT_SECRET}&
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grant_type=urn:ietf:params:oauth:grant-type:jwt-bearer&
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requested_token_use=on_behalf_of&
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scope=api://<cluster>.<namespace>.<other-api-app-name>/.default
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```
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```json title="Successful response"
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{
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"access_token" : "eyJ0eX[...]",
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"expires_in" : 3599,
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...
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}
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```
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Your application does not need to validate this token.
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!!! tip "Token Caching"
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The `expires_in` field denotes the lifetime of the token in seconds.
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**Cache and reuse the token until it expires** to minimize network latency impact.
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A safe cache key for this flow is `key = sha256($subject_token + $scope)`.
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## Consume API
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Once you have acquired a new token, you can finally consume the target API by using the token as a [Bearer token](../../explanations/README.md#bearer-token):

‎docs/auth/entra-id/how-to/secure.md

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This how-to guides you through the steps required to secure your API using [Entra ID](../README.md):
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{%- if tenant() == "nav" %}
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???+ warning "Use webproxy for outbound network connectivity from on-premises environments"
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If you're on-premises, you must enable and use [`webproxy`](../../../workloads/application/reference/application-spec.md#webproxy) to access Entra ID.
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{%- endif %}
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## Grant access to consumers
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Depending on who your consumers are, you must grant access to either applications, users, or both.
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Verify incoming requests from consumers by validating the [JWT Bearer token](../../explanations/README.md#bearer-token) in the `Authorization` header.
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{% include 'auth/entra-id/partials/validate.md' %}
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[variables-ref]: ../reference/README.md#variables-for-validating-tokens

‎docs/auth/entra-id/partials/validate.md

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{% set identity_provider = 'azuread' %}
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{% set claims_reference = '../reference/README.md#claims' %}
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{% set token_validation_reference = '../reference/README.md#manual-token-validation' %}
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{% include 'auth/partials/validate.md' %}
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To validate the token, start by validating the [signature and standard time-related claims](../../explanations/README.md#token-validation).
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Additionally, perform the following validations:
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**Issuer Validation**
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Validate that the `iss` claim has a value that is equal to either:
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1. the `AZURE_OPENID_CONFIG_ISSUER` [environment variable](../reference/README.md#runtime-variables-credentials), or
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2. the `issuer` property from the [metadata discovery document](../../explanations/README.md#well-known-url-metadata-document).
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The document is found at the endpoint pointed to by the `AZURE_APP_WELL_KNOWN_URL` environment variable.
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**Audience Validation**
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Validate that the `aud` claim is equal to the `AZURE_APP_CLIENT_ID` environment variable.
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**Signature Validation**
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Validate that the token is signed with a public key published at the JWKS endpoint.
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This endpoint URI can be found in one of two ways:
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1. the `AZURE_OPENID_CONFIG_JWKS_URI` environment variable, or
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2. the `jwks_uri` property from the metadata discovery document.
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The document is found at the endpoint pointed to by the `AZURE_APP_WELL_KNOWN_URL` environment variable.
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**Claims Validation**
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[Other claims](../reference/README.md#claims) may be present in the token. Validation of these claims is optional.

‎docs/auth/entra-id/reference/README.md

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Consumers defined in the [access policy](../how-to/secure.md#applications) are always assigned the default scope named `defaultaccess`.
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You can optionally define and grant them [custom scopes](#custom-scopes).
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## Runtime Variables & Credentials
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## Manual Token Validation
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{% include 'auth/partials/validate-manually.md' %}
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**Issuer Validation**
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Validate that the `iss` claim has a value that is equal to either:
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Your application will automatically be injected with environment variables at runtime.
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1. the `AZURE_OPENID_CONFIG_ISSUER` environment variable, or
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2. the `issuer` property from the [metadata discovery document](../../explanations/README.md#well-known-url-metadata-document).
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The document is found at the endpoint pointed to by the `AZURE_APP_WELL_KNOWN_URL` environment variable.
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### Variables for acquiring tokens
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**Audience Validation**
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These variables are used to:
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Validate that the `aud` claim is equal to the `AZURE_APP_CLIENT_ID` environment variable.
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- [:dart: consume an API as an application](../how-to/consume-m2m.md) and
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- [:dart: consume an API on behalf of an employee](../how-to/consume-obo.md)
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**Signature Validation**
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| Name | Description |
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|:-------------------------------------|:-------------------------------------------------------------------------------------------------------------------------|
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| `AZURE_APP_CLIENT_ID` | [Client ID](../../explanations/README.md#client-id) that uniquely identifies the application in Entra ID. |
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| `AZURE_APP_CLIENT_SECRET` | [Client secret](../../explanations/README.md#client-secret) for the application in Entra ID. |
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| `AZURE_APP_WELL_KNOWN_URL` | The well-known URL for the [metadata discovery document](../../explanations/README.md#well-known-url-metadata-document). |
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| `AZURE_OPENID_CONFIG_TOKEN_ENDPOINT` | `token_endpoint` from the [metadata discovery document](../../explanations/README.md#token-endpoint). |
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Validate that the token is signed with a public key published at the JWKS endpoint.
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This endpoint URI can be found in one of two ways:
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`AZURE_APP_WELL_KNOWN_URL` is optional if you're using `AZURE_OPENID_CONFIG_TOKEN_ENDPOINT` directly.
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1. the `AZURE_OPENID_CONFIG_JWKS_URI` environment variable, or
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2. the `jwks_uri` property from the metadata discovery document.
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The document is found at the endpoint pointed to by the `AZURE_APP_WELL_KNOWN_URL` environment variable.
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### Variables for validating tokens
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**Claims Validation**
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[Other claims](../reference/README.md#claims) may be present in the token. Validation of these claims is optional.
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## Runtime Variables & Credentials
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These variables are used to [:dart: secure your API](../how-to/secure.md):
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Your application will automatically be injected with the following environment variables at runtime.
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| Name | Description |
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|:-------------------------------|:-------------------------------------------------------------------------------------------------------------------------|
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| `AZURE_APP_CLIENT_ID` | [Client ID](../explanations/README.md#client-id) that uniquely identifies the application in Entra ID. |
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| `AZURE_APP_WELL_KNOWN_URL` | The well-known URL for the [metadata discovery document](../../explanations/README.md#well-known-url-metadata-document). |
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| `AZURE_OPENID_CONFIG_ISSUER` | `issuer` from the [metadata discovery document](../../explanations/README.md#issuer). |
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| `AZURE_OPENID_CONFIG_JWKS_URI` | `jwks_uri` from the [metadata discovery document](../../explanations/README.md#jwks-endpoint-public-keys). |
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| Environment Variable | Description |
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|-------------------------------------|---------------------------------------------------------------------------------------------------------|
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| `NAIS_TOKEN_ENDPOINT` | Used to [:dart: consume an API as an application](../how-to/consume-m2m.md). |
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| `NAIS_TOKEN_EXCHANGE_ENDPOINT` | Used to [:dart: consume an API on behalf of an employee](../how-to/consume-obo.md). |
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| `NAIS_TOKEN_INTROSPECTION_ENDPOINT` | Used to [:dart: secure your API](../how-to/secure.md) or [:dart: log in employees](../how-to/login.md). |
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`AZURE_APP_WELL_KNOWN_URL` is optional if you're using `AZURE_OPENID_CONFIG_ISSUER` and `AZURE_OPENID_CONFIG_JWKS_URI` directly.
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For further details about these endpoints, see the [OpenAPI specification](../../reference/README.md#openapi-specification).
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## Spec
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‎docs/auth/explanations/README.md

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A client ID is a unique identifier associated with your client for a given identity provider. The value of the
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identifier is generally not considered to be confidential.
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The client ID for your client is injected at runtime as an environment variable.
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See the respective identity provider page for details:
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- [Entra ID](../entra-id/reference/README.md#runtime-variables-credentials)
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- [ID-porten](../idporten/reference/README.md#runtime-variables-credentials)
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- [Maskinporten](../maskinporten/reference/README.md#runtime-variables-credentials)
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- [TokenX](../tokenx/reference/README.md#runtime-variables-credentials)
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#### Client Authentication
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A confidential client must authenticate itself to the identity provider.
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Use well-known and widely used libraries and frameworks that take care of most
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See [libraries and frameworks](../reference/README.md#libraries-and-frameworks-for-validating-and-acquiring-tokens) for a non-comprehensive list.
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#### Signature Validation
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A JWT usually contains the `kid` (key ID) claim in the token's [header](#header) to indicate which key was used to sign
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See the individual identity provider pages for specific validation related to each provider:
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- [Entra ID](../entra-id/how-to/secure.md#validate-tokens)
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- [Entra ID](../entra-id/reference/README.md#manual-token-validation)
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- [ID-porten](../idporten/how-to/login.md#validate-token-in-authorization-header)
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- [Maskinporten](../maskinporten/how-to/secure.md#validate-tokens)
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- [TokenX](../tokenx/how-to/secure.md#validate-tokens)
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- exchanging user tokens into on-behalf-of tokens
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- token validation with introspection
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???+ warning "Texas is currently in opt-in public beta"
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To enable Texas for your application, set the `texas.nais.io/enabled: "true"` annotation on your `Application`:
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```yaml title="app.yaml" hl_lines="5"
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apiVersion: "nais.io/v1alpha1"
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kind: "Application"
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metadata:
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annotations:
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texas.nais.io/enabled: "true"
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```
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Texas is in beta as we gather feedback and test it in production environments.
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We do not plan to make any breaking API changes.
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Visit the `#texas` channel on Slack for updates, questions and feedback.
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All available [identity providers](#identity-provider) are supported:
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[Entra ID](../entra-id/README.md)
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: - [:dart: Get a machine-to-machine token](../entra-id/how-to/consume-m2m.md#acquire-tokens-with-texas)
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- [:dart: Exchange an on-behalf-of token](../entra-id/how-to/consume-obo.md#exchange-tokens-with-texas)
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- [:dart: Validate token](../entra-id/how-to/secure.md#validate-with-texas)
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: - [:dart: Get a machine-to-machine token](../entra-id/how-to/consume-m2m.md#acquire-token)
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- [:dart: Exchange an on-behalf-of token](../entra-id/how-to/consume-obo.md#exchange-token)
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- [:dart: Validate token](../entra-id/how-to/secure.md#validate-tokens)
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[ID-porten](../idporten/README.md)
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: - [:dart: Validate token](../idporten/how-to/login.md#validate-with-texas)
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: - [:dart: Validate token](../idporten/how-to/login.md#validate-token-in-authorization-header)
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[Maskinporten](../maskinporten/README.md)
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: - [:dart: Get a machine-to-machine token](../maskinporten/how-to/consume.md#acquire-tokens-with-texas)
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- [:dart: Validate token](../maskinporten/how-to/secure.md#validate-with-texas)
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: - [:dart: Get a machine-to-machine token](../maskinporten/how-to/consume.md#acquire-token)
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- [:dart: Validate token](../maskinporten/how-to/secure.md#validate-tokens)
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[TokenX](../tokenx/README.md)
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: - [:dart: Exchange an on-behalf-of token](../tokenx/how-to/consume.md#exchange-tokens-with-texas)
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- [:dart: Validate token](../tokenx/how-to/secure.md#validate-with-texas)
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: - [:dart: Exchange an on-behalf-of token](../tokenx/how-to/consume.md#exchange-token)
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- [:dart: Validate token](../tokenx/how-to/secure.md#validate-tokens)
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See the [Texas reference](../reference/README.md#texas) for API specifications and available environment variables.
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