added a way to retrieve raw udev data. Can be used to retrieve disk label, UUID and "disk/by-id/*" device info.

Storing it in the database during device registration.

webapp/backend/pkg/database/migrations/m20220503120000/device.go

@@ -5,6 +5,7 @@ import (
 	"time"
 )
 
+// Deprecated: m20220503120000.Device is deprecated, only used by db migrations
 type Device struct {
 	//GORM attributes, see: http://gorm.io/docs/conventions.html
 	CreatedAt time.Time

webapp/backend/pkg/database/scrutiny_repository_device.go

@@ -18,7 +18,7 @@ import (
 func (sr *scrutinyRepository) RegisterDevice(ctx context.Context, dev models.Device) error {
 	if err := sr.gormClient.WithContext(ctx).Clauses(clause.OnConflict{
 		Columns:   []clause.Column{{Name: "wwn"}},
-		DoUpdates: clause.AssignmentColumns([]string{"host_id", "device_name", "device_type"}),
+		DoUpdates: clause.AssignmentColumns([]string{"host_id", "device_name", "device_type", "device_uuid", "device_serial_id", "device_label"}),
 	}).Create(&dev).Error; err != nil {
 		return err
 	}

webapp/backend/pkg/database/scrutiny_repository_migrations.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"github.com/analogj/scrutiny/webapp/backend/pkg/database/migrations/m20201107210306"
 	"github.com/analogj/scrutiny/webapp/backend/pkg/database/migrations/m20220503120000"
+	"github.com/analogj/scrutiny/webapp/backend/pkg/database/migrations/m20220509170100"
 	"github.com/analogj/scrutiny/webapp/backend/pkg/models"
 	"github.com/analogj/scrutiny/webapp/backend/pkg/models/collector"
 	"github.com/analogj/scrutiny/webapp/backend/pkg/models/measurements"
@@ -257,10 +258,19 @@ func (sr *scrutinyRepository) Migrate(ctx context.Context) error {
 					return err
 				}
 
-				//migrate the device database to the current version
+				//migrate the device database
 				return tx.AutoMigrate(m20220503120000.Device{})
 			},
 		},
+		{
+			ID: "m20220509170100", // addl udev device data
+			Migrate: func(tx *gorm.DB) error {
+
+				//migrate the device database.
+				// adding addl columns (device_label, device_uuid, device_serial_id)
+				return tx.AutoMigrate(m20220509170100.Device{})
+			},
+		},
 	})
 
 	if err := m.Migrate(); err != nil {