Azure: Configuration for user identity authentication in datasources (Experimental) (#50277)

* Configuration for user identity authentication

* Use token endpoint form Azure AD settings

* Documentation update

* Update Grafana Azure SDK

* Fix secret override

* Fix lint

* Fix doc wording

conf/defaults.ini

@@ -808,6 +808,23 @@ managed_identity_enabled = false
 # Should be set for user-assigned identity and should be empty for system-assigned identity
 managed_identity_client_id =
 
+# Specifies whether user identity authentication (on behalf of currently signed-in user) should be enabled in datasources
+# that support it (requires AAD authentication)
+# Disabled by default, needs to be explicitly enabled
+user_identity_enabled = false
+
+# Override token URL for Azure Active Directory
+# By default is the same as token URL configured for AAD authentication settings
+user_identity_token_url =
+
+# Override ADD application ID which would be used to exchange users token to an access token for the datasource
+# By default is the same as used in AAD authentication or can be set to another application (for OBO flow)
+user_identity_client_id =
+
+# Override the AAD application client secret
+# By default is the same as used in AAD authentication or can be set to another application (for OBO flow)
+user_identity_client_secret =
+
 #################################### Role-based Access Control ###########
 [rbac]
 # If enabled, cache permissions in a in memory cache

conf/sample.ini

@@ -780,6 +780,23 @@
 # Should be set for user-assigned identity and should be empty for system-assigned identity
 ;managed_identity_client_id =
 
+# Specifies whether user identity authentication (on behalf of currently signed-in user) should be enabled in datasources
+# that support it (requires AAD authentication)
+# Disabled by default, needs to be explicitly enabled
+;user_identity_enabled = false
+
+# Override token URL for Azure Active Directory
+# By default is the same as token URL configured for AAD authentication settings
+;user_identity_token_url =
+
+# Override ADD application ID which would be used to exchange users token to an access token for the datasource
+# By default is the same as used in AAD authentication or can be set to another application (for OBO flow)
+;user_identity_client_id =
+
+# Override the AAD application client secret
+# By default is the same as used in AAD authentication or can be set to another application (for OBO flow)
+;user_identity_client_secret =
+
 #################################### Role-based Access Control ###########
 [rbac]
 ;permission_cache = true

docs/sources/setup-grafana/configure-grafana/_index.md

@@ -1117,6 +1117,30 @@ The client ID to use for user-assigned managed identity.
 
 Should be set for user-assigned identity and should be empty for system-assigned identity.
 
+### user_identity_enabled
+
+Specifies whether user identity authentication (on behalf of currently signed-in user) should be enabled in datasources that support it (requires AAD authentication).
+
+Disabled by default, needs to be explicitly enabled.
+
+### user_identity_token_url
+
+Override token URL for Azure Active Directory.
+
+By default is the same as token URL configured for AAD authentication settings.
+
+### user_identity_client_id
+
+Override ADD application ID which would be used to exchange users token to an access token for the datasource.
+
+By default is the same as used in AAD authentication or can be set to another application (for OBO flow).
+
+### user_identity_client_secret
+
+Override the AAD application client secret.
+
+By default is the same as used in AAD authentication or can be set to another application (for OBO flow).
+
 ## [auth.jwt]
 
 Refer to [JWT authentication]({{< relref "../configure-security/configure-authentication/jwt/" >}}) for more information.

go.mod

@@ -60,7 +60,7 @@ require (
 	github.com/gorilla/websocket v1.5.0
 	github.com/grafana/alerting v0.0.0-20230428095912-33c5aa68a5ba
 	github.com/grafana/grafana-aws-sdk v0.15.0
-	github.com/grafana/grafana-azure-sdk-go v1.6.0
+	github.com/grafana/grafana-azure-sdk-go v1.7.0
 	github.com/grafana/grafana-plugin-sdk-go v0.160.0
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0
 	github.com/hashicorp/go-hclog v1.5.0

go.sum

@@ -1054,8 +1054,8 @@ github.com/grafana/go-mssqldb v0.9.2 h1:FkyRJR4ywsT07iMtpFMHStrl8uuNkGIwp253Fee0
 github.com/grafana/go-mssqldb v0.9.2/go.mod h1:HTCsUqZdb7oIO7jc37YauiSB5C3P/13AnpctVWBhlus=
 github.com/grafana/grafana-aws-sdk v0.15.0 h1:ZOPHQcC5NUFi1bLTwnju91G0KmGh1z+qXOKj9nDfxNs=
 github.com/grafana/grafana-aws-sdk v0.15.0/go.mod h1:rCXLYoMpPqF90U7XqgVJ1HIAopFVF0bB3SXBVEJIm3I=
-github.com/grafana/grafana-azure-sdk-go v1.6.0 h1:lxvH/mVY7gKBtJKhZ4B/6tIZFY7Jth97HxBA38olaxs=
+github.com/grafana/grafana-azure-sdk-go v1.7.0 h1:2EAPwNl/qsDMHwKjlzaHif+H+bHcF1W7sM8/jAcxVcI=
-github.com/grafana/grafana-azure-sdk-go v1.6.0/go.mod h1:X4PdEQIYgHfn0KTa2ZTKvufhNz6jbCEKUQPZIlcyOGw=
+github.com/grafana/grafana-azure-sdk-go v1.7.0/go.mod h1:X4PdEQIYgHfn0KTa2ZTKvufhNz6jbCEKUQPZIlcyOGw=
 github.com/grafana/grafana-google-sdk-go v0.1.0 h1:LKGY8z2DSxKjYfr2flZsWgTRTZ6HGQbTqewE3JvRaNA=
 github.com/grafana/grafana-google-sdk-go v0.1.0/go.mod h1:Vo2TKWfDVmNTELBUM+3lkrZvFtBws0qSZdXhQxRdJrE=
 github.com/grafana/grafana-plugin-sdk-go v0.94.0/go.mod h1:3VXz4nCv6wH5SfgB3mlW39s+c+LetqSCjFj7xxPC5+M=

packages/grafana-runtime/src/config.ts

@@ -21,6 +21,7 @@ import {
 export interface AzureSettings {
   cloud?: string;
   managedIdentityEnabled: boolean;
+  userIdentityEnabled: boolean;
 }
 
 export type AppPluginConfig = {
@@ -121,6 +122,7 @@ export class GrafanaBootConfig implements GrafanaConfig {
   awsAssumeRoleEnabled = false;
   azure: AzureSettings = {
     managedIdentityEnabled: false,
+    userIdentityEnabled: false,
   };
   caching = {
     enabled: false,

pkg/api/dtos/frontend_settings.go

@@ -46,6 +46,7 @@ type FrontendSettingsLicenseInfoDTO struct {
 type FrontendSettingsAzureDTO struct {
 	Cloud                  string `json:"cloud"`
 	ManagedIdentityEnabled bool   `json:"managedIdentityEnabled"`
+	UserIdentityEnabled    bool   `json:"userIdentityEnabled"`
 }
 
 type FrontendSettingsCachingDTO struct {

pkg/api/frontendsettings.go

@@ -198,6 +198,7 @@ func (hs *HTTPServer) getFrontendSettings(c *contextmodel.ReqContext) (*dtos.Fro
 		Azure: dtos.FrontendSettingsAzureDTO{
 			Cloud:                  hs.Cfg.Azure.Cloud,
 			ManagedIdentityEnabled: hs.Cfg.Azure.ManagedIdentityEnabled,
+			UserIdentityEnabled:    hs.Cfg.Azure.UserIdentityEnabled,
 		},
 
 		Caching: dtos.FrontendSettingsCachingDTO{

pkg/api/pluginproxy/token_provider_azure.go

@@ -20,7 +20,7 @@ type azureAccessTokenProvider struct {
 
 func newAzureAccessTokenProvider(ctx context.Context, cfg *setting.Cfg, authParams *plugins.JWTTokenAuth) (*azureAccessTokenProvider, error) {
 	credentials := getAzureCredentials(cfg.Azure, authParams)
-	tokenProvider, err := aztokenprovider.NewAzureAccessTokenProvider(cfg.Azure, credentials)
+	tokenProvider, err := aztokenprovider.NewAzureAccessTokenProvider(cfg.Azure, credentials, false)
 	if err != nil {
 		return nil, err
 	}

pkg/setting/setting_azure.go

@@ -1,6 +1,8 @@
 package setting
 
-import "github.com/grafana/grafana-azure-sdk-go/azsettings"
+import (
+	"github.com/grafana/grafana-azure-sdk-go/azsettings"
+)
 
 func (cfg *Cfg) readAzureSettings() {
 	azureSettings := &azsettings.AzureSettings{}
@@ -11,9 +13,37 @@ func (cfg *Cfg) readAzureSettings() {
 	cloudName := azureSection.Key("cloud").MustString(azsettings.AzurePublic)
 	azureSettings.Cloud = azsettings.NormalizeAzureCloud(cloudName)
 
-	// Managed Identity
+	// Managed Identity authentication
 	azureSettings.ManagedIdentityEnabled = azureSection.Key("managed_identity_enabled").MustBool(false)
 	azureSettings.ManagedIdentityClientId = azureSection.Key("managed_identity_client_id").String()
 
+	// User Identity authentication
+	if azureSection.Key("user_identity_enabled").MustBool(false) {
+		azureSettings.UserIdentityEnabled = true
+		tokenEndpointSettings := &azsettings.TokenEndpointSettings{}
+
+		// Get token endpoint from Azure AD settings if enabled
+		azureAdSection := cfg.Raw.Section("auth.azuread")
+		if azureAdSection.Key("enabled").MustBool(false) {
+			tokenEndpointSettings.TokenUrl = azureAdSection.Key("token_url").String()
+			tokenEndpointSettings.ClientId = azureAdSection.Key("client_id").String()
+			tokenEndpointSettings.ClientSecret = azureAdSection.Key("client_secret").String()
+		}
+
+		// Override individual settings
+		if val := azureSection.Key("user_identity_token_url").String(); val != "" {
+			tokenEndpointSettings.TokenUrl = val
+		}
+		if val := azureSection.Key("user_identity_client_id").String(); val != "" {
+			tokenEndpointSettings.ClientId = val
+			tokenEndpointSettings.ClientSecret = ""
+		}
+		if val := azureSection.Key("user_identity_client_secret").String(); val != "" {
+			tokenEndpointSettings.ClientSecret = val
+		}
+
+		azureSettings.UserIdentityTokenEndpoint = tokenEndpointSettings
+	}
+
 	cfg.Azure = azureSettings
 }

pkg/setting/setting_azure_test.go

@@ -63,4 +63,156 @@ func TestAzureSettings(t *testing.T) {
 			})
 		}
 	})
+
+	t.Run("User Identity", func(t *testing.T) {
+		t.Run("should be disabled by default", func(t *testing.T) {
+			cfg := NewCfg()
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+
+			assert.False(t, cfg.Azure.UserIdentityEnabled)
+		})
+
+		t.Run("should be enabled", func(t *testing.T) {
+			cfg := NewCfg()
+
+			azureSection, err := cfg.Raw.NewSection("azure")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_enabled", "true")
+			require.NoError(t, err)
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+			require.NotNil(t, cfg.Azure.UserIdentityTokenEndpoint)
+
+			assert.True(t, cfg.Azure.UserIdentityEnabled)
+		})
+
+		t.Run("should use token endpoint from Azure AD if enabled", func(t *testing.T) {
+			cfg := NewCfg()
+
+			azureAdSection, err := cfg.Raw.NewSection("auth.azuread")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("enabled", "true")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("token_url", "URL_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_id", "ID_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_secret", "SECRET_1")
+			require.NoError(t, err)
+
+			azureSection, err := cfg.Raw.NewSection("azure")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_enabled", "true")
+			require.NoError(t, err)
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+			require.NotNil(t, cfg.Azure.UserIdentityTokenEndpoint)
+
+			assert.True(t, cfg.Azure.UserIdentityEnabled)
+			assert.Equal(t, "URL_1", cfg.Azure.UserIdentityTokenEndpoint.TokenUrl)
+			assert.Equal(t, "ID_1", cfg.Azure.UserIdentityTokenEndpoint.ClientId)
+			assert.Equal(t, "SECRET_1", cfg.Azure.UserIdentityTokenEndpoint.ClientSecret)
+		})
+
+		t.Run("should not use token endpoint from Azure AD if not enabled", func(t *testing.T) {
+			cfg := NewCfg()
+
+			azureAdSection, err := cfg.Raw.NewSection("auth.azuread")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("enabled", "false")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("token_url", "URL_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_id", "ID_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_secret", "SECRET_1")
+			require.NoError(t, err)
+
+			azureSection, err := cfg.Raw.NewSection("azure")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_enabled", "true")
+			require.NoError(t, err)
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+			require.NotNil(t, cfg.Azure.UserIdentityTokenEndpoint)
+
+			assert.True(t, cfg.Azure.UserIdentityEnabled)
+			assert.Empty(t, cfg.Azure.UserIdentityTokenEndpoint.TokenUrl)
+			assert.Empty(t, cfg.Azure.UserIdentityTokenEndpoint.ClientId)
+			assert.Empty(t, cfg.Azure.UserIdentityTokenEndpoint.ClientSecret)
+		})
+
+		t.Run("should override Azure AD settings", func(t *testing.T) {
+			cfg := NewCfg()
+
+			azureAdSection, err := cfg.Raw.NewSection("auth.azuread")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("enabled", "true")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("token_url", "URL_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_id", "ID_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_secret", "SECRET_1")
+			require.NoError(t, err)
+
+			azureSection, err := cfg.Raw.NewSection("azure")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_enabled", "true")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_token_url", "URL_2")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_client_id", "ID_2")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_client_secret", "SECRET_2")
+			require.NoError(t, err)
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+			require.NotNil(t, cfg.Azure.UserIdentityTokenEndpoint)
+
+			assert.True(t, cfg.Azure.UserIdentityEnabled)
+			assert.Equal(t, "URL_2", cfg.Azure.UserIdentityTokenEndpoint.TokenUrl)
+			assert.Equal(t, "ID_2", cfg.Azure.UserIdentityTokenEndpoint.ClientId)
+			assert.Equal(t, "SECRET_2", cfg.Azure.UserIdentityTokenEndpoint.ClientSecret)
+		})
+
+		t.Run("should not use secret from Azure AD if client ID overridden", func(t *testing.T) {
+			cfg := NewCfg()
+
+			azureAdSection, err := cfg.Raw.NewSection("auth.azuread")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("enabled", "true")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("token_url", "URL_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_id", "ID_1")
+			require.NoError(t, err)
+			_, err = azureAdSection.NewKey("client_secret", "SECRET_1")
+			require.NoError(t, err)
+
+			azureSection, err := cfg.Raw.NewSection("azure")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_enabled", "true")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_token_url", "URL_2")
+			require.NoError(t, err)
+			_, err = azureSection.NewKey("user_identity_client_id", "ID_2")
+			require.NoError(t, err)
+
+			cfg.readAzureSettings()
+			require.NotNil(t, cfg.Azure)
+			require.NotNil(t, cfg.Azure.UserIdentityTokenEndpoint)
+
+			assert.True(t, cfg.Azure.UserIdentityEnabled)
+			assert.Equal(t, "URL_2", cfg.Azure.UserIdentityTokenEndpoint.TokenUrl)
+			assert.Equal(t, "ID_2", cfg.Azure.UserIdentityTokenEndpoint.ClientId)
+			assert.Empty(t, cfg.Azure.UserIdentityTokenEndpoint.ClientSecret)
+		})
+	})
 }