Add computer name to azure sd

Signed-off-by: darshanime <deathbullet@gmail.com>

discovery/azure/azure.go

@@ -46,6 +46,7 @@ const (
 	azureLabelMachineID            = azureLabel + "machine_id"
 	azureLabelMachineResourceGroup = azureLabel + "machine_resource_group"
 	azureLabelMachineName          = azureLabel + "machine_name"
+	azureLabelMachineComputerName  = azureLabel + "machine_computer_name"
 	azureLabelMachineOSType        = azureLabel + "machine_os_type"
 	azureLabelMachineLocation      = azureLabel + "machine_location"
 	azureLabelMachinePrivateIP     = azureLabel + "machine_private_ip"
@@ -226,6 +227,7 @@ type azureResource struct {
 type virtualMachine struct {
 	ID                string
 	Name              string
+	ComputerName      string
 	Type              string
 	Location          string
 	OsType            string
@@ -306,6 +308,7 @@ func (d *Discovery) refresh(ctx context.Context) ([]*targetgroup.Group, error) {
 				azureLabelTenantID:             model.LabelValue(d.cfg.TenantID),
 				azureLabelMachineID:            model.LabelValue(vm.ID),
 				azureLabelMachineName:          model.LabelValue(vm.Name),
+				azureLabelMachineComputerName:  model.LabelValue(vm.ComputerName),
 				azureLabelMachineOSType:        model.LabelValue(vm.OsType),
 				azureLabelMachineLocation:      model.LabelValue(vm.Location),
 				azureLabelMachineResourceGroup: model.LabelValue(r.ResourceGroup),
@@ -463,6 +466,7 @@ func mapFromVM(vm compute.VirtualMachine) virtualMachine {
 	return virtualMachine{
 		ID:                *(vm.ID),
 		Name:              *(vm.Name),
+		ComputerName:      *(vm.VirtualMachineProperties.OsProfile.ComputerName),
 		Type:              *(vm.Type),
 		Location:          *(vm.Location),
 		OsType:            osType,
@@ -490,6 +494,7 @@ func mapFromVMScaleSetVM(vm compute.VirtualMachineScaleSetVM, scaleSetName strin
 	return virtualMachine{
 		ID:                *(vm.ID),
 		Name:              *(vm.Name),
+		ComputerName:      *(vm.VirtualMachineScaleSetVMProperties.OsProfile.ComputerName),
 		Type:              *(vm.Type),
 		Location:          *(vm.Location),
 		OsType:            osType,

discovery/azure/azure_test.go

@@ -30,10 +30,14 @@ func TestMapFromVMWithEmptyTags(t *testing.T) {
 	name := "name"
 	vmType := "type"
 	location := "westeurope"
+	computerName := "computer_name"
 	networkProfile := compute.NetworkProfile{
 		NetworkInterfaces: &[]compute.NetworkInterfaceReference{},
 	}
 	properties := &compute.VirtualMachineProperties{
+		OsProfile: &compute.OSProfile{
+			ComputerName: &computerName,
+		},
 		StorageProfile: &compute.StorageProfile{
 			OsDisk: &compute.OSDisk{
 				OsType: "Linux",
@@ -54,6 +58,7 @@ func TestMapFromVMWithEmptyTags(t *testing.T) {
 	expectedVM := virtualMachine{
 		ID:                id,
 		Name:              name,
+		ComputerName:      computerName,
 		Type:              vmType,
 		Location:          location,
 		OsType:            "Linux",
@@ -71,6 +76,7 @@ func TestMapFromVMWithTags(t *testing.T) {
 	name := "name"
 	vmType := "type"
 	location := "westeurope"
+	computerName := "computer_name"
 	tags := map[string]*string{
 		"prometheus": new(string),
 	}
@@ -78,6 +84,9 @@ func TestMapFromVMWithTags(t *testing.T) {
 		NetworkInterfaces: &[]compute.NetworkInterfaceReference{},
 	}
 	properties := &compute.VirtualMachineProperties{
+		OsProfile: &compute.OSProfile{
+			ComputerName: &computerName,
+		},
 		StorageProfile: &compute.StorageProfile{
 			OsDisk: &compute.OSDisk{
 				OsType: "Linux",
@@ -98,6 +107,7 @@ func TestMapFromVMWithTags(t *testing.T) {
 	expectedVM := virtualMachine{
 		ID:                id,
 		Name:              name,
+		ComputerName:      computerName,
 		Type:              vmType,
 		Location:          location,
 		OsType:            "Linux",
@@ -115,10 +125,14 @@ func TestMapFromVMScaleSetVMWithEmptyTags(t *testing.T) {
 	name := "name"
 	vmType := "type"
 	location := "westeurope"
+	computerName := "computer_name"
 	networkProfile := compute.NetworkProfile{
 		NetworkInterfaces: &[]compute.NetworkInterfaceReference{},
 	}
 	properties := &compute.VirtualMachineScaleSetVMProperties{
+		OsProfile: &compute.OSProfile{
+			ComputerName: &computerName,
+		},
 		StorageProfile: &compute.StorageProfile{
 			OsDisk: &compute.OSDisk{
 				OsType: "Linux",
@@ -140,6 +154,7 @@ func TestMapFromVMScaleSetVMWithEmptyTags(t *testing.T) {
 	expectedVM := virtualMachine{
 		ID:                id,
 		Name:              name,
+		ComputerName:      computerName,
 		Type:              vmType,
 		Location:          location,
 		OsType:            "Linux",
@@ -158,6 +173,7 @@ func TestMapFromVMScaleSetVMWithTags(t *testing.T) {
 	name := "name"
 	vmType := "type"
 	location := "westeurope"
+	computerName := "computer_name"
 	tags := map[string]*string{
 		"prometheus": new(string),
 	}
@@ -165,6 +181,9 @@ func TestMapFromVMScaleSetVMWithTags(t *testing.T) {
 		NetworkInterfaces: &[]compute.NetworkInterfaceReference{},
 	}
 	properties := &compute.VirtualMachineScaleSetVMProperties{
+		OsProfile: &compute.OSProfile{
+			ComputerName: &computerName,
+		},
 		StorageProfile: &compute.StorageProfile{
 			OsDisk: &compute.OSDisk{
 				OsType: "Linux",
@@ -186,6 +205,7 @@ func TestMapFromVMScaleSetVMWithTags(t *testing.T) {
 	expectedVM := virtualMachine{
 		ID:                id,
 		Name:              name,
+		ComputerName:      computerName,
 		Type:              vmType,
 		Location:          location,
 		OsType:            "Linux",

docs/configuration/configuration.md

@@ -386,6 +386,7 @@ The following meta labels are available on targets during [relabeling](#relabel_
 * `__meta_azure_machine_id`: the machine ID
 * `__meta_azure_machine_location`: the location the machine runs in
 * `__meta_azure_machine_name`: the machine name
+* `__meta_azure_machine_computer_name`: the machine computer name
 * `__meta_azure_machine_os_type`: the machine operating system
 * `__meta_azure_machine_private_ip`: the machine's private IP
 * `__meta_azure_machine_public_ip`: the machine's public IP if it exists