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Documentation Grafana documentation Set up Configure security Configure authentication Google OAuth2

Configure Google OAuth2 authentication

To enable Google OAuth2 you must register your application with Google. Google will generate a client ID and secret key for you to use.

Create Google OAuth keys

First, you need to create a Google OAuth Client:

1. Go to https://console.developers.google.com/apis/credentials.
2. Click Create Credentials, then click OAuth Client ID in the drop-down menu
3. Enter the following:
   • Application Type: Web Application
   • Name: Grafana
   • Authorized JavaScript Origins: https://grafana.mycompany.com
   • Authorized Redirect URLs: https://grafana.mycompany.com/login/google
   • Replace https://grafana.mycompany.com with the URL of your Grafana instance.
4. Click Create
5. Copy the Client ID and Client Secret from the ‘OAuth Client’ modal

Configure Google authentication client using the Grafana UI

As a Grafana Admin, you can configure Google OAuth2 client from within Grafana using the Google UI. To do this, navigate to Administration > Authentication > Google page and fill in the form. If you have a current configuration in the Grafana configuration file then the form will be pre-populated with those values otherwise the form will contain default values.

After you have filled in the form, click Save. If the save was successful, Grafana will apply the new configurations.

If you need to reset changes made in the UI back to the default values, click Reset. After you have reset the changes, Grafana will apply the configuration from the Grafana configuration file (if there is any configuration) or the default values.

Configure Google authentication client using the Terraform provider

terraform Copy

resource "grafana_sso_settings" "google_sso_settings" {
  provider_name = "google"
  oauth2_settings {
    name            = "Google"
    client_id       = "CLIENT_ID"
    client_secret   = "CLIENT_SECRET"
    allow_sign_up   = true
    auto_login      = false
    scopes          = "openid email profile"
    allowed_domains = "mycompany.com mycompany.org"
    hosted_domain   = "mycompany.com"
    use_pkce        = true
  }
}

Go to Terraform Registry for a complete reference on using the grafana_sso_settings resource.

Configure Google authentication client using the Grafana configuration file

Ensure that you have access to the Grafana configuration file.

Enable Google OAuth in Grafana

Specify the Client ID and Secret in the Grafana configuration file. For example:

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[auth.google]
enabled = true
allow_sign_up = true
auto_login = false
client_id = CLIENT_ID
client_secret = CLIENT_SECRET
scopes = openid email profile
auth_url = https://accounts.google.com/o/oauth2/v2/auth
token_url = https://oauth2.googleapis.com/token
api_url = https://openidconnect.googleapis.com/v1/userinfo
allowed_domains = mycompany.com mycompany.org
hosted_domain = mycompany.com
use_pkce = true

You may have to set the root_url option of [server] for the callback URL to be correct. For example in case you are serving Grafana behind a proxy.

Restart the Grafana back-end. You should now see a Google login button on the login page. You can now login or sign up with your Google accounts. The allowed_domains option is optional, and domains were separated by space.

You may allow users to sign-up via Google authentication by setting the allow_sign_up option to true. When this option is set to true, any user successfully authenticating via Google authentication will be automatically signed up.

You may specify a domain to be passed as hd query parameter accepted by Google’s OAuth 2.0 authentication API. Refer to Google’s OAuth documentation.

PKCE

IETF’s RFC 7636 introduces “proof key for code exchange” (PKCE) which provides additional protection against some forms of authorization code interception attacks. PKCE will be required in OAuth 2.1.

You can disable PKCE in Grafana by setting use_pkce to false in the[auth.google] section.

Configure refresh token

When a user logs in using an OAuth provider, Grafana verifies that the access token has not expired. When an access token expires, Grafana uses the provided refresh token (if any exists) to obtain a new access token.

Grafana uses a refresh token to obtain a new access token without requiring the user to log in again. If a refresh token doesn’t exist, Grafana logs the user out of the system after the access token has expired.

By default, Grafana includes the access_type=offline parameter in the authorization request to request a refresh token.

Refresh token fetching and access token expiration check is enabled by default for the Google provider since Grafana v10.1.0. If you would like to disable access token expiration check then set the use_refresh_token configuration value to false.

Configure automatic login

Set auto_login option to true to attempt login automatically, skipping the login screen. This setting is ignored if multiple auth providers are configured to use auto login.

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auto_login = true

Configure team sync for Google OAuth

With team sync, you can easily add users to teams by utilizing their Google groups. To set up team sync for Google OAuth, refer to the following example.

1. Enable the Google Cloud Identity API on your organization’s dashboard.

2. Add the https://www.googleapis.com/auth/cloud-identity.groups.readonly scope to your Grafana [auth.google] configuration:

   Example:

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   [auth.google]
   # ..
   scopes = openid email profile https://www.googleapis.com/auth/cloud-identity.groups.readonly

3. Configure team sync in your Grafana team’s External group sync tab. The external group ID for a Google group is the group’s email address, such as dev@grafana.com.

To learn more about Team Sync, refer to Configure Team Sync.

Configure allowed groups

To limit access to authenticated users that are members of one or more groups, set allowed_groups to a comma or space separated list of groups.

Google groups are referenced by the group email key. For example, developers@google.com.

Note: Add the https://www.googleapis.com/auth/cloud-identity.groups.readonly scope to your Grafana [auth.google] scopes configuration to retrieve groups

Configure role mapping

Unless skip_org_role_sync option is enabled, the user’s role will be set to the role mapped from Google upon user login. If no mapping is set the default instance role is used.

The user’s role is retrieved using a JMESPath expression from the role_attribute_path configuration option. To map the server administrator role, use the allow_assign_grafana_admin configuration option.

If no valid role is found, the user is assigned the role specified by the auto_assign_org_role option. You can disable this default role assignment by setting role_attribute_strict = true. This setting denies user access if no role or an invalid role is returned after evaluating the role_attribute_path and the org_mapping expressions.

To ease configuration of a proper JMESPath expression, go to JMESPath to test and evaluate expressions with custom payloads.

By default skip_org_role_sync is enabled. skip_org_role_sync will default to false in Grafana v10.3.0 and later versions.

Role mapping examples

This section includes examples of JMESPath expressions used for role mapping.

Org roles mapping example

The Google integration uses the external users’ groups in the org_mapping configuration to map organizations and roles based on their Google group membership.

In this example, the user has been granted the role of a Viewer in the org_foo organization, and the role of an Editor in the org_bar and org_baz orgs.

The external user is part of the following Google groups: group-1 and group-2.

Config:

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org_mapping = group-1:org_foo:Viewer group-2:org_bar:Editor *:org_baz:Editor

Map roles using user information from OAuth token

In this example, the user with email admin@company.com has been granted the Admin role. All other users are granted the Viewer role.

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role_attribute_path = email=='admin@company.com' && 'Admin' || 'Viewer'
skip_org_role_sync = false

Map roles using groups

In this example, the user from Google group ’example-group@google.com’ have been granted the Editor role. All other users are granted the Viewer role.

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role_attribute_path = contains(groups[*], 'example-group@google.com') && 'Editor' || 'Viewer'
skip_org_role_sync = false

Note: Add the https://www.googleapis.com/auth/cloud-identity.groups.readonly scope to your Grafana [auth.google] scopes configuration to retrieve groups

Map server administrator role

In this example, the user with email admin@company.com has been granted the Admin organization role as well as the Grafana server admin role. All other users are granted the Viewer role.

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allow_assign_grafana_admin = true
skip_org_role_sync = false
role_attribute_path = email=='admin@company.com' && 'GrafanaAdmin' || 'Viewer'

Map one role to all users

In this example, all users will be assigned Viewer role regardless of the user information received from the identity provider.

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role_attribute_path = "'Viewer'"
skip_org_role_sync = false