Auth: Azure AD OAuth (#20030)

* Implement Azure AD oauth

* Use go-jose and cleanup

* Update go-jose in go.mod

* cleanup

* Add unit tests

* Fix scopes

* Add documentation page

* Improve documentation

* Convert extract_role into function.

* Do not use upn and replace unique_name with preferred_username

* Configure login button

* Use official microsoft icon and color from branding guideline.

* Add Azure AD config section in sample.ini.
This commit is contained in:
twendt
2020-02-13 10:12:25 +01:00
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title = "Azure AD OAuth2 Authentication"
description = "Grafana OAuthentication Guide "
keywords = ["grafana", "configuration", "documentation", "oauth"]
type = "docs"
[menu.docs]
name = "Azure AD"
identifier = "azuread_oauth2"
parent = "authentication"
weight = 3
+++
# Azure AD OAuth2 Authentication
The Azure AD authentication provides the possibility to use an Azure Active Directory tenant as an identity provider for Grafana.
By using Azure AD Application Roles it is also possible to assign Users and Groups to Grafana roles from the Azure Portal.
To enable the Azure AD OAuth2 you must register your application with Azure AD.
# Create Azure AD application
1. Log in to [Azure Portal](https://portal.azure.com) and click **Azure Active Directory** in the side menu.
1. Click **App Registrations** and add a new application registration:
- Name: Grafana
- Application type: Web app / API
- Sign-on URL: `https://<grafana domain>/login/azuread`
1. Click the name of the new application to open the application details page.
1. Click **Endpoints**.
- Note down the **OAuth 2.0 authorization endpoint (v2)**, this will be the auth url.
- Note down the **OAuth 2.0 token endpoint (v2)**, this will be the token url.
1. Close the Endpoints page to come back to the application details page.
1. Note down the "Application ID", this will be the OAuth client id.
1. Click **Certificates & secrets** and add a new entry under Client secrets.
- Description: Grafana OAuth
- Expires: Never
1. Click **Add** then copy the key value, this will be the OAuth client secret.
1. Click **Manifest**.
- Add definitions for the required Application Roles for Grafana (Viewer, Editor, Admin). Without this configuration all users will be assigned to the Viewer role.
- Every role has to have a unique id. On Linux this can be created with `uuidgen` for instance.
```json
"appRoles": [
{
"allowedMemberTypes": [
"User"
],
"description": "Grafana admin Users",
"displayName": "Grafana Admin",
"id": "SOME_UNIQUE_ID",
"isEnabled": true,
"lang": null,
"origin": "Application",
"value": "Admin"
},
{
"allowedMemberTypes": [
"User"
],
"description": "Grafana read only Users",
"displayName": "Grafana Viewer",
"id": "SOME_UNIQUE_ID",
"isEnabled": true,
"lang": null,
"origin": "Application",
"value": "Viewer"
},
{
"allowedMemberTypes": [
"User"
],
"description": "Grafana Editor Users",
"displayName": "Grafana Editor",
"id": "SOME_UNIQUE_ID",
"isEnabled": true,
"lang": null,
"origin": "Application",
"value": "Editor"
}
],
```
1. Click Overview and then on **Managed application in local directory** to show the Enterprise Application details.
1. Click on **Users and groups** and add Users/Groups to the Grafana roles by using **Add User**.
1. Add the following to the [Grafana configuration file]({{< relref "../installation/configuration.md#config-file-locations" >}}):
```ini
[auth.azuread]
name = Azure AD
enabled = true
allow_sign_up = true
client_id = APPLICATION_ID
client_secret = CLIENT_SECRET
scopes = openid email profile
auth_url = https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/authorize
token_url = https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token
```
> Note: Ensure that the [root_url]({{< relref "../installation/configuration/#root-url" >}}) in Grafana is set in your Azure Application Reply URLs (App -> Settings -> Reply URLs)