adding mechanism to override the smartctl commands used by scrutiny for device scanning, device identification and smart data retrieval.

adding tests for command overrides.

rename GetScanOverrides() to GetDeviceOverrides()

fixes #255

collector/pkg/collector/metrics.go

@@ -116,12 +116,13 @@ func (mc *MetricsCollector) Collect(deviceWWN string, deviceName string, deviceT
 	}
 	mc.logger.Infof("Collecting smartctl results for %s\n", deviceName)
 
-	args := []string{"-x", "-j"}
+	fullDeviceName := fmt.Sprintf("%s%s", detect.DevicePrefix(), deviceName)
+	args := strings.Split(mc.config.GetCommandMetricsSmartArgs(fullDeviceName), " ")
 	//only include the device type if its a non-standard one. In some cases ata drives are detected as scsi in docker, and metadata is lost.
 	if len(deviceType) > 0 && deviceType != "scsi" && deviceType != "ata" {
-		args = append(args, "-d", deviceType)
+		args = append(args, "--device", deviceType)
 	}
-	args = append(args, fmt.Sprintf("%s%s", detect.DevicePrefix(), deviceName))
+	args = append(args, fullDeviceName)
 
 	result, err := mc.shell.Command(mc.logger, "smartctl", args, "", os.Environ())
 	resultBytes := []byte(result)

collector/pkg/config/config.go

@@ -1,6 +1,7 @@
 package config
 
 import (
+	"fmt"
 	"github.com/analogj/go-util/utils"
 	"github.com/analogj/scrutiny/collector/pkg/errors"
 	"github.com/analogj/scrutiny/collector/pkg/models"
@@ -8,6 +9,8 @@ import (
 	"github.com/spf13/viper"
 	"log"
 	"os"
+	"sort"
+	"strings"
 )
 
 // When initializing this class the following methods must be called:
@@ -16,6 +19,8 @@ import (
 // This is done automatically when created via the Factory.
 type configuration struct {
 	*viper.Viper
+
+	deviceOverrides []models.ScanOverride
 }
 
 //Viper uses the following precedence order. Each item takes precedence over the item below it:
@@ -38,6 +43,10 @@ func (c *configuration) Init() error {
 
 	c.SetDefault("api.endpoint", "http://localhost:8080")
 
+	c.SetDefault("commands.metrics_scan_args", "--scan --json")
+	c.SetDefault("commands.metrics_info_args", "--info --json")
+	c.SetDefault("commands.metrics_smart_args", "--xall --json")
+
 	//c.SetDefault("collect.short.command", "-a -o on -S on")
 
 	//if you want to load a non-standard location system config file (~/drawbridge.yml), use ReadConfig
@@ -90,16 +99,89 @@ func (c *configuration) ValidateConfig() error {
 	// check that device prefix matches OS
 	// check that schema of config file is valid
 
-	return nil
+	// check that the collector commands are valid
+	commandArgStrings := map[string]string{
+		"commands.metrics_scan_args":  c.GetString("commands.metrics_scan_args"),
+		"commands.metrics_info_args":  c.GetString("commands.metrics_info_args"),
+		"commands.metrics_smart_args": c.GetString("commands.metrics_smart_args"),
+	}
+
+	errorStrings := []string{}
+	for configKey, commandArgString := range commandArgStrings {
+		args := strings.Split(commandArgString, " ")
+		//ensure that the args string contains `--json` or `-j` flag
+		containsJsonFlag := false
+		containsDeviceFlag := false
+		for _, flag := range args {
+			if strings.HasPrefix(flag, "--json") || strings.HasPrefix(flag, "-j") {
+				containsJsonFlag = true
+			}
+			if strings.HasPrefix(flag, "--device") || strings.HasPrefix(flag, "-d") {
+				containsDeviceFlag = true
+			}
+		}
+
+		if !containsJsonFlag {
+			errorStrings = append(errorStrings, fmt.Sprintf("configuration key '%s' is missing '--json' flag", configKey))
+		}
+
+		if containsDeviceFlag {
+			errorStrings = append(errorStrings, fmt.Sprintf("configuration key '%s' must not contain '--device' or '-d' flag", configKey))
+		}
+	}
+	//sort(errorStrings)
+	sort.Strings(errorStrings)
+
+	if len(errorStrings) == 0 {
+		return nil
+	} else {
+		return errors.ConfigValidationError(strings.Join(errorStrings, ", "))
+	}
 }
 
-func (c *configuration) GetScanOverrides() []models.ScanOverride {
+func (c *configuration) GetDeviceOverrides() []models.ScanOverride {
 	// we have to support 2 types of device types.
 	// - simple device type (device_type: 'sat')
 	// and list of device types (type: \n- 3ware,0 \n- 3ware,1 \n- 3ware,2)
 	// GetString will return "" if this is a list of device types.
 
-	overrides := []models.ScanOverride{}
+	if c.deviceOverrides == nil {
-	c.UnmarshalKey("devices", &overrides, func(c *mapstructure.DecoderConfig) { c.WeaklyTypedInput = true })
+		overrides := []models.ScanOverride{}
-	return overrides
+		c.UnmarshalKey("devices", &overrides, func(c *mapstructure.DecoderConfig) { c.WeaklyTypedInput = true })
+		c.deviceOverrides = overrides
+	}
+
+	return c.deviceOverrides
+}
+
+func (c *configuration) GetCommandMetricsInfoArgs(deviceName string) string {
+	overrides := c.GetDeviceOverrides()
+
+	for _, deviceOverrides := range overrides {
+		if strings.ToLower(deviceName) == strings.ToLower(deviceOverrides.Device) {
+			//found matching device
+			if len(deviceOverrides.Commands.MetricsInfoArgs) > 0 {
+				return deviceOverrides.Commands.MetricsInfoArgs
+			} else {
+				return c.GetString("commands.metrics_info_args")
+			}
+		}
+	}
+	return c.GetString("commands.metrics_info_args")
+}
+
+func (c *configuration) GetCommandMetricsSmartArgs(deviceName string) string {
+	overrides := c.GetDeviceOverrides()
+
+	for _, deviceOverrides := range overrides {
+		if strings.ToLower(deviceName) == strings.ToLower(deviceOverrides.Device) {
+			//found matching device
+			if len(deviceOverrides.Commands.MetricsSmartArgs) > 0 {
+				return deviceOverrides.Commands.MetricsSmartArgs
+			} else {
+				return c.GetString("commands.metrics_smart_args")
+			}
+		}
+	}
+	return c.GetString("commands.metrics_smart_args")
 }

collector/pkg/config/config_test.go

@@ -30,7 +30,7 @@ func TestConfiguration_GetScanOverrides_Simple(t *testing.T) {
 	//test
 	err := testConfig.ReadConfig(path.Join("testdata", "simple_device.yaml"))
 	require.NoError(t, err, "should correctly load simple device config")
-	scanOverrides := testConfig.GetScanOverrides()
+	scanOverrides := testConfig.GetDeviceOverrides()
 
 	//assert
 	require.Equal(t, []models.ScanOverride{{Device: "/dev/sda", DeviceType: []string{"sat"}, Ignore: false}}, scanOverrides)
@@ -45,7 +45,7 @@ func TestConfiguration_GetScanOverrides_Ignore(t *testing.T) {
 	//test
 	err := testConfig.ReadConfig(path.Join("testdata", "ignore_device.yaml"))
 	require.NoError(t, err, "should correctly load ignore device config")
-	scanOverrides := testConfig.GetScanOverrides()
+	scanOverrides := testConfig.GetDeviceOverrides()
 
 	//assert
 	require.Equal(t, []models.ScanOverride{{Device: "/dev/sda", DeviceType: nil, Ignore: true}}, scanOverrides)
@@ -60,7 +60,7 @@ func TestConfiguration_GetScanOverrides_Raid(t *testing.T) {
 	//test
 	err := testConfig.ReadConfig(path.Join("testdata", "raid_device.yaml"))
 	require.NoError(t, err, "should correctly load ignore device config")
-	scanOverrides := testConfig.GetScanOverrides()
+	scanOverrides := testConfig.GetDeviceOverrides()
 
 	//assert
 	require.Equal(t, []models.ScanOverride{
@@ -75,3 +75,53 @@ func TestConfiguration_GetScanOverrides_Raid(t *testing.T) {
 			Ignore:     false,
 		}}, scanOverrides)
 }
+
+func TestConfiguration_InvalidCommands_MissingJson(t *testing.T) {
+	t.Parallel()
+
+	//setup
+	testConfig, _ := config.Create()
+
+	//test
+	err := testConfig.ReadConfig(path.Join("testdata", "invalid_commands_missing_json.yaml"))
+	require.EqualError(t, err, `ConfigValidationError: "configuration key 'commands.metrics_scan_args' is missing '--json' flag"`, "should throw an error because json flag is missing")
+}
+
+func TestConfiguration_InvalidCommands_IncludesDevice(t *testing.T) {
+	t.Parallel()
+
+	//setup
+	testConfig, _ := config.Create()
+
+	//test
+	err := testConfig.ReadConfig(path.Join("testdata", "invalid_commands_includes_device.yaml"))
+	require.EqualError(t, err, `ConfigValidationError: "configuration key 'commands.metrics_info_args' must not contain '--device' or '-d' flag, configuration key 'commands.metrics_smart_args' must not contain '--device' or '-d' flag"`, "should throw an error because device flags detected")
+}
+
+func TestConfiguration_OverrideCommands(t *testing.T) {
+	t.Parallel()
+
+	//setup
+	testConfig, _ := config.Create()
+
+	//test
+	err := testConfig.ReadConfig(path.Join("testdata", "override_commands.yaml"))
+	require.NoError(t, err, "should not throw an error")
+	require.Equal(t, "--xall --json -T permissive", testConfig.GetString("commands.metrics_smart_args"))
+}
+
+func TestConfiguration_OverrideDeviceCommands_MetricsInfoArgs(t *testing.T) {
+	t.Parallel()
+
+	//setup
+	testConfig, _ := config.Create()
+
+	//test
+	err := testConfig.ReadConfig(path.Join("testdata", "override_device_commands.yaml"))
+	require.NoError(t, err, "should correctly override device command")
+
+	//assert
+	require.Equal(t, "--info --json -T permissive", testConfig.GetCommandMetricsInfoArgs("/dev/sda"))
+	require.Equal(t, "--info --json", testConfig.GetCommandMetricsInfoArgs("/dev/sdb"))
+	//require.Equal(t, []models.ScanOverride{{Device: "/dev/sda", DeviceType: nil, Commands: {MetricsInfoArgs: "--info --json -T "}}}, scanOverrides)
+}

collector/pkg/config/interface.go

@@ -22,5 +22,7 @@ type Interface interface {
 	GetStringSlice(key string) []string
 	UnmarshalKey(key string, rawVal interface{}, decoderOpts ...viper.DecoderConfigOption) error
 
-	GetScanOverrides() []models.ScanOverride
+	GetDeviceOverrides() []models.ScanOverride
+	GetCommandMetricsInfoArgs(deviceName string) string
+	GetCommandMetricsSmartArgs(deviceName string) string
 }

collector/pkg/config/mock/mock_config.go

@@ -5,88 +5,37 @@
 package mock_config
 
 import (
+	reflect "reflect"
+
 	models "github.com/analogj/scrutiny/collector/pkg/models"
 	gomock "github.com/golang/mock/gomock"
 	viper "github.com/spf13/viper"
-	reflect "reflect"
 )
 
-// MockInterface is a mock of Interface interface
+// MockInterface is a mock of Interface interface.
 type MockInterface struct {
 	ctrl     *gomock.Controller
 	recorder *MockInterfaceMockRecorder
 }
 
-// MockInterfaceMockRecorder is the mock recorder for MockInterface
+// MockInterfaceMockRecorder is the mock recorder for MockInterface.
 type MockInterfaceMockRecorder struct {
 	mock *MockInterface
 }
 
-// NewMockInterface creates a new mock instance
+// NewMockInterface creates a new mock instance.
 func NewMockInterface(ctrl *gomock.Controller) *MockInterface {
 	mock := &MockInterface{ctrl: ctrl}
 	mock.recorder = &MockInterfaceMockRecorder{mock}
 	return mock
 }
 
-// EXPECT returns an object that allows the caller to indicate expected use
+// EXPECT returns an object that allows the caller to indicate expected use.
 func (m *MockInterface) EXPECT() *MockInterfaceMockRecorder {
 	return m.recorder
 }
 
-// Init mocks base method
+// AllSettings mocks base method.
-func (m *MockInterface) Init() error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "Init")
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// Init indicates an expected call of Init
-func (mr *MockInterfaceMockRecorder) Init() *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Init", reflect.TypeOf((*MockInterface)(nil).Init))
-}
-
-// ReadConfig mocks base method
-func (m *MockInterface) ReadConfig(configFilePath string) error {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "ReadConfig", configFilePath)
-	ret0, _ := ret[0].(error)
-	return ret0
-}
-
-// ReadConfig indicates an expected call of ReadConfig
-func (mr *MockInterfaceMockRecorder) ReadConfig(configFilePath interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ReadConfig", reflect.TypeOf((*MockInterface)(nil).ReadConfig), configFilePath)
-}
-
-// Set mocks base method
-func (m *MockInterface) Set(key string, value interface{}) {
-	m.ctrl.T.Helper()
-	m.ctrl.Call(m, "Set", key, value)
-}
-
-// Set indicates an expected call of Set
-func (mr *MockInterfaceMockRecorder) Set(key, value interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Set", reflect.TypeOf((*MockInterface)(nil).Set), key, value)
-}
-
-// SetDefault mocks base method
-func (m *MockInterface) SetDefault(key string, value interface{}) {
-	m.ctrl.T.Helper()
-	m.ctrl.Call(m, "SetDefault", key, value)
-}
-
-// SetDefault indicates an expected call of SetDefault
-func (mr *MockInterfaceMockRecorder) SetDefault(key, value interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SetDefault", reflect.TypeOf((*MockInterface)(nil).SetDefault), key, value)
-}
-
-// AllSettings mocks base method
 func (m *MockInterface) AllSettings() map[string]interface{} {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "AllSettings")
@@ -94,27 +43,13 @@ func (m *MockInterface) AllSettings() map[string]interface{} {
 	return ret0
 }
 
-// AllSettings indicates an expected call of AllSettings
+// AllSettings indicates an expected call of AllSettings.
 func (mr *MockInterfaceMockRecorder) AllSettings() *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AllSettings", reflect.TypeOf((*MockInterface)(nil).AllSettings))
 }
 
-// IsSet mocks base method
+// Get mocks base method.
-func (m *MockInterface) IsSet(key string) bool {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "IsSet", key)
-	ret0, _ := ret[0].(bool)
-	return ret0
-}
-
-// IsSet indicates an expected call of IsSet
-func (mr *MockInterfaceMockRecorder) IsSet(key interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IsSet", reflect.TypeOf((*MockInterface)(nil).IsSet), key)
-}
-
-// Get mocks base method
 func (m *MockInterface) Get(key string) interface{} {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "Get", key)
@@ -122,13 +57,13 @@ func (m *MockInterface) Get(key string) interface{} {
 	return ret0
 }
 
-// Get indicates an expected call of Get
+// Get indicates an expected call of Get.
 func (mr *MockInterfaceMockRecorder) Get(key interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Get", reflect.TypeOf((*MockInterface)(nil).Get), key)
 }
 
-// GetBool mocks base method
+// GetBool mocks base method.
 func (m *MockInterface) GetBool(key string) bool {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetBool", key)
@@ -136,13 +71,55 @@ func (m *MockInterface) GetBool(key string) bool {
 	return ret0
 }
 
-// GetBool indicates an expected call of GetBool
+// GetBool indicates an expected call of GetBool.
 func (mr *MockInterfaceMockRecorder) GetBool(key interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetBool", reflect.TypeOf((*MockInterface)(nil).GetBool), key)
 }
 
-// GetInt mocks base method
+// GetCommandMetricsInfoArgs mocks base method.
+func (m *MockInterface) GetCommandMetricsInfoArgs(deviceName string) string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetCommandMetricsInfoArgs", deviceName)
+	ret0, _ := ret[0].(string)
+	return ret0
+}
+
+// GetCommandMetricsInfoArgs indicates an expected call of GetCommandMetricsInfoArgs.
+func (mr *MockInterfaceMockRecorder) GetCommandMetricsInfoArgs(deviceName interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetCommandMetricsInfoArgs", reflect.TypeOf((*MockInterface)(nil).GetCommandMetricsInfoArgs), deviceName)
+}
+
+// GetCommandMetricsSmartArgs mocks base method.
+func (m *MockInterface) GetCommandMetricsSmartArgs(deviceName string) string {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetCommandMetricsSmartArgs", deviceName)
+	ret0, _ := ret[0].(string)
+	return ret0
+}
+
+// GetCommandMetricsSmartArgs indicates an expected call of GetCommandMetricsSmartArgs.
+func (mr *MockInterfaceMockRecorder) GetCommandMetricsSmartArgs(deviceName interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetCommandMetricsSmartArgs", reflect.TypeOf((*MockInterface)(nil).GetCommandMetricsSmartArgs), deviceName)
+}
+
+// GetDeviceOverrides mocks base method.
+func (m *MockInterface) GetDeviceOverrides() []models.ScanOverride {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "GetDeviceOverrides")
+	ret0, _ := ret[0].([]models.ScanOverride)
+	return ret0
+}
+
+// GetDeviceOverrides indicates an expected call of GetDeviceOverrides.
+func (mr *MockInterfaceMockRecorder) GetDeviceOverrides() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetDeviceOverrides", reflect.TypeOf((*MockInterface)(nil).GetDeviceOverrides))
+}
+
+// GetInt mocks base method.
 func (m *MockInterface) GetInt(key string) int {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetInt", key)
@@ -150,13 +127,13 @@ func (m *MockInterface) GetInt(key string) int {
 	return ret0
 }
 
-// GetInt indicates an expected call of GetInt
+// GetInt indicates an expected call of GetInt.
 func (mr *MockInterfaceMockRecorder) GetInt(key interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetInt", reflect.TypeOf((*MockInterface)(nil).GetInt), key)
 }
 
-// GetString mocks base method
+// GetString mocks base method.
 func (m *MockInterface) GetString(key string) string {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetString", key)
@@ -164,13 +141,13 @@ func (m *MockInterface) GetString(key string) string {
 	return ret0
 }
 
-// GetString indicates an expected call of GetString
+// GetString indicates an expected call of GetString.
 func (mr *MockInterfaceMockRecorder) GetString(key interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetString", reflect.TypeOf((*MockInterface)(nil).GetString), key)
 }
 
-// GetStringSlice mocks base method
+// GetStringSlice mocks base method.
 func (m *MockInterface) GetStringSlice(key string) []string {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "GetStringSlice", key)
@@ -178,13 +155,79 @@ func (m *MockInterface) GetStringSlice(key string) []string {
 	return ret0
 }
 
-// GetStringSlice indicates an expected call of GetStringSlice
+// GetStringSlice indicates an expected call of GetStringSlice.
 func (mr *MockInterfaceMockRecorder) GetStringSlice(key interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetStringSlice", reflect.TypeOf((*MockInterface)(nil).GetStringSlice), key)
 }
 
-// UnmarshalKey mocks base method
+// Init mocks base method.
+func (m *MockInterface) Init() error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Init")
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Init indicates an expected call of Init.
+func (mr *MockInterfaceMockRecorder) Init() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Init", reflect.TypeOf((*MockInterface)(nil).Init))
+}
+
+// IsSet mocks base method.
+func (m *MockInterface) IsSet(key string) bool {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "IsSet", key)
+	ret0, _ := ret[0].(bool)
+	return ret0
+}
+
+// IsSet indicates an expected call of IsSet.
+func (mr *MockInterfaceMockRecorder) IsSet(key interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "IsSet", reflect.TypeOf((*MockInterface)(nil).IsSet), key)
+}
+
+// ReadConfig mocks base method.
+func (m *MockInterface) ReadConfig(configFilePath string) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ReadConfig", configFilePath)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// ReadConfig indicates an expected call of ReadConfig.
+func (mr *MockInterfaceMockRecorder) ReadConfig(configFilePath interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ReadConfig", reflect.TypeOf((*MockInterface)(nil).ReadConfig), configFilePath)
+}
+
+// Set mocks base method.
+func (m *MockInterface) Set(key string, value interface{}) {
+	m.ctrl.T.Helper()
+	m.ctrl.Call(m, "Set", key, value)
+}
+
+// Set indicates an expected call of Set.
+func (mr *MockInterfaceMockRecorder) Set(key, value interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Set", reflect.TypeOf((*MockInterface)(nil).Set), key, value)
+}
+
+// SetDefault mocks base method.
+func (m *MockInterface) SetDefault(key string, value interface{}) {
+	m.ctrl.T.Helper()
+	m.ctrl.Call(m, "SetDefault", key, value)
+}
+
+// SetDefault indicates an expected call of SetDefault.
+func (mr *MockInterfaceMockRecorder) SetDefault(key, value interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "SetDefault", reflect.TypeOf((*MockInterface)(nil).SetDefault), key, value)
+}
+
+// UnmarshalKey mocks base method.
 func (m *MockInterface) UnmarshalKey(key string, rawVal interface{}, decoderOpts ...viper.DecoderConfigOption) error {
 	m.ctrl.T.Helper()
 	varargs := []interface{}{key, rawVal}
@@ -196,23 +239,9 @@ func (m *MockInterface) UnmarshalKey(key string, rawVal interface{}, decoderOpts
 	return ret0
 }
 
-// UnmarshalKey indicates an expected call of UnmarshalKey
+// UnmarshalKey indicates an expected call of UnmarshalKey.
 func (mr *MockInterfaceMockRecorder) UnmarshalKey(key, rawVal interface{}, decoderOpts ...interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
 	varargs := append([]interface{}{key, rawVal}, decoderOpts...)
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "UnmarshalKey", reflect.TypeOf((*MockInterface)(nil).UnmarshalKey), varargs...)
 }
-
-// GetScanOverrides mocks base method
-func (m *MockInterface) GetScanOverrides() []models.ScanOverride {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "GetScanOverrides")
-	ret0, _ := ret[0].([]models.ScanOverride)
-	return ret0
-}
-
-// GetScanOverrides indicates an expected call of GetScanOverrides
-func (mr *MockInterfaceMockRecorder) GetScanOverrides() *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "GetScanOverrides", reflect.TypeOf((*MockInterface)(nil).GetScanOverrides))
-}

collector/pkg/config/testdata/invalid_commands_includes_device.yaml

@@ -0,0 +1,4 @@
+commands:
+  metrics_scan_args: '--scan --json' # used to detect devices
+  metrics_info_args: '--info --json --device=sat' # used to determine device unique ID & register device with Scrutiny
+  metrics_smart_args: '--xall --json -d sat' # used to retrieve smart data for each device.

collector/pkg/config/testdata/invalid_commands_missing_json.yaml

@@ -0,0 +1,4 @@
+commands:
+  metrics_scan_args: '--scan' # used to detect devices
+  metrics_info_args: '--info -j' # used to determine device unique ID & register device with Scrutiny
+  metrics_smart_args: '--xall --json' # used to retrieve smart data for each device.

collector/pkg/config/testdata/override_commands.yaml

@@ -0,0 +1,4 @@
+commands:
+  metrics_scan_args: '--scan --json' # used to detect devices
+  metrics_info_args: '--info -j' # used to determine device unique ID & register device with Scrutiny
+  metrics_smart_args: '--xall --json -T permissive' # used to retrieve smart data for each device.

collector/pkg/config/testdata/override_device_commands.yaml

@@ -0,0 +1,5 @@
+version: 1
+devices:
+  - device: /dev/sda
+    commands:
+      metrics_info_args: "--info --json -T permissive"

collector/pkg/detect/detect.go

@@ -28,7 +28,8 @@ type Detect struct {
 // models.Device returned from this function only contain the minimum data for smartctl to execute: device type and device name (device file).
 func (d *Detect) SmartctlScan() ([]models.Device, error) {
 	//we use smartctl to detect all the drives available.
-	detectedDeviceConnJson, err := d.Shell.Command(d.Logger, "smartctl", []string{"--scan", "-j"}, "", os.Environ())
+	args := strings.Split(d.Config.GetString("commands.metrics_scan_args"), " ")
+	detectedDeviceConnJson, err := d.Shell.Command(d.Logger, "smartctl", args, "", os.Environ())
 	if err != nil {
 		d.Logger.Errorf("Error scanning for devices: %v", err)
 		return nil, err
@@ -51,13 +52,13 @@ func (d *Detect) SmartctlScan() ([]models.Device, error) {
 // - WWN is provided as component data, rather than a "string". We'll have to generate the WWN value ourselves
 // - WWN from smartctl only provided for ATA protocol drives, NVMe and SCSI drives do not include WWN.
 func (d *Detect) SmartCtlInfo(device *models.Device) error {
-
+	fullDeviceName := fmt.Sprintf("%s%s", DevicePrefix(), device.DeviceName)
-	args := []string{"--info", "-j"}
+	args := strings.Split(d.Config.GetCommandMetricsInfoArgs(fullDeviceName), " ")
 	//only include the device type if its a non-standard one. In some cases ata drives are detected as scsi in docker, and metadata is lost.
 	if len(device.DeviceType) > 0 && device.DeviceType != "scsi" && device.DeviceType != "ata" {
-		args = append(args, "-d", device.DeviceType)
+		args = append(args, "--device", device.DeviceType)
 	}
-	args = append(args, fmt.Sprintf("%s%s", DevicePrefix(), device.DeviceName))
+	args = append(args, fullDeviceName)
 
 	availableDeviceInfoJson, err := d.Shell.Command(d.Logger, "smartctl", args, "", os.Environ())
 	if err != nil {
@@ -138,7 +139,7 @@ func (d *Detect) TransformDetectedDevices(detectedDeviceConns models.Scan) []mod
 
 	//now tha we've "grouped" all the devices, lets override any groups specified in the config file.
 
-	for _, overrideDevice := range d.Config.GetScanOverrides() {
+	for _, overrideDevice := range d.Config.GetDeviceOverrides() {
 		overrideDeviceFile := strings.ToLower(overrideDevice.Device)
 
 		if overrideDevice.Ignore {

collector/pkg/detect/detect_test.go

@@ -18,7 +18,8 @@ func TestDetect_SmartctlScan(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
 
 	fakeShell := mock_shell.NewMockInterface(mockCtrl)
 	testScanResults, err := ioutil.ReadFile("testdata/smartctl_scan_simple.json")
@@ -45,7 +46,8 @@ func TestDetect_SmartctlScan_Megaraid(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
 
 	fakeShell := mock_shell.NewMockInterface(mockCtrl)
 	testScanResults, err := ioutil.ReadFile("testdata/smartctl_scan_megaraid.json")
@@ -75,7 +77,8 @@ func TestDetect_SmartctlScan_Nvme(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
 
 	fakeShell := mock_shell.NewMockInterface(mockCtrl)
 	testScanResults, err := ioutil.ReadFile("testdata/smartctl_scan_nvme.json")
@@ -104,7 +107,9 @@ func TestDetect_TransformDetectedDevices_Empty(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
+
 	detectedDevices := models.Scan{
 		Devices: []models.ScanDevice{
 			{
@@ -134,7 +139,9 @@ func TestDetect_TransformDetectedDevices_Ignore(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{{Device: "/dev/sda", DeviceType: nil, Ignore: true}})
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{{Device: "/dev/sda", DeviceType: nil, Ignore: true}})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
+
 	detectedDevices := models.Scan{
 		Devices: []models.ScanDevice{
 			{
@@ -163,7 +170,8 @@ func TestDetect_TransformDetectedDevices_Raid(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{
 		{
 			Device:     "/dev/bus/0",
 			DeviceType: []string{"megaraid,14", "megaraid,15", "megaraid,18", "megaraid,19", "megaraid,20", "megaraid,21"},
@@ -202,7 +210,8 @@ func TestDetect_TransformDetectedDevices_Simple(t *testing.T) {
 	defer mockCtrl.Finish()
 	fakeConfig := mock_config.NewMockInterface(mockCtrl)
 	fakeConfig.EXPECT().GetString("host.id").AnyTimes().Return("")
-	fakeConfig.EXPECT().GetScanOverrides().AnyTimes().Return([]models.ScanOverride{{Device: "/dev/sda", DeviceType: []string{"sat+megaraid"}}})
+	fakeConfig.EXPECT().GetString("commands.metrics_scan_args").AnyTimes().Return("--scan --json")
+	fakeConfig.EXPECT().GetDeviceOverrides().AnyTimes().Return([]models.ScanOverride{{Device: "/dev/sda", DeviceType: []string{"sat+megaraid"}}})
 	detectedDevices := models.Scan{
 		Devices: []models.ScanDevice{
 			{

collector/pkg/models/scan_override.go

@@ -4,4 +4,8 @@ type ScanOverride struct {
 	Device     string   `mapstructure:"device"`
 	DeviceType []string `mapstructure:"type"`
 	Ignore     bool     `mapstructure:"ignore"`
+	Commands   struct {
+		MetricsInfoArgs  string `mapstructure:"metrics_info_args"`
+		MetricsSmartArgs string `mapstructure:"metrics_smart_args"`
+	} `mapstructure:"commands"`
 }

example.collector.yaml

@@ -53,6 +53,13 @@ devices:
 #      - 3ware,3
 #      - 3ware,4
 #      - 3ware,5
+#
+#  # example to show how to override the smartctl command args (per device), see below for how to override these globally.
+#  - device: /dev/sda
+#    commands:
+#      metrics_info_args: '--info --json -T permissive' # used to determine device unique ID & register device with Scrutiny
+#      metrics_smart_args: '--xall --json -T permissive' # used to retrieve smart data for each device.
+
 
 #log:
 #  file: '' #absolute or relative paths allowed, eg. web.log
@@ -64,6 +71,12 @@ devices:
 # if you need to use a custom base path (for a reverse proxy), you can add a suffix to the endpoint.
 #  See docs/TROUBLESHOOTING_REVERSE_PROXY.md for more info,
 
+# example to show how to override the smartctl command args globally
+#commands:
+#  metrics_scan_args: '--scan --json' # used to detect devices
+#  metrics_info_args: '--info --json' # used to determine device unique ID & register device with Scrutiny
+#  metrics_smart_args: '--xall --json' # used to retrieve smart data for each device.
+
 
 ########################################################################################################################
 # FEATURES COMING SOON