Change type of DiskSize to int to uint

It help us to fix integer overflow issue with latest version of
golint-ci.

cmd/crc/cmd/start.go

@@ -70,7 +70,7 @@ func runStart(ctx context.Context) (*types.StartResult, error) {
 	startConfig := types.StartConfig{
 		BundlePath:        config.Get(crcConfig.Bundle).AsString(),
 		Memory:            config.Get(crcConfig.Memory).AsUInt(),
-		DiskSize:          config.Get(crcConfig.DiskSize).AsInt(),
+		DiskSize:          config.Get(crcConfig.DiskSize).AsUInt(),
 		CPUs:              config.Get(crcConfig.CPUs).AsUInt(),
 		NameServer:        config.Get(crcConfig.NameServer).AsString(),
 		PullSecret:        cluster.NewInteractivePullSecretLoader(config),
@@ -187,7 +187,7 @@ func validateStartFlags() error {
 	if err := validation.ValidateCPUs(config.Get(crcConfig.CPUs).AsUInt(), crcConfig.GetPreset(config)); err != nil {
 		return err
 	}
-	if err := validation.ValidateDiskSize(config.Get(crcConfig.DiskSize).AsInt()); err != nil {
+	if err := validation.ValidateDiskSize(config.Get(crcConfig.DiskSize).AsUInt()); err != nil {
 		return err
 	}
 	if err := validation.ValidateBundle(config.Get(crcConfig.Bundle).AsString(), crcConfig.GetPreset(config)); err != nil {

pkg/crc/api/handlers.go

@@ -122,7 +122,7 @@ func getStartConfig(cfg crcConfig.Storage, args client.StartConfig) types.StartC
 	return types.StartConfig{
 		BundlePath:               cfg.Get(crcConfig.Bundle).AsString(),
 		Memory:                   cfg.Get(crcConfig.Memory).AsUInt(),
-		DiskSize:                 cfg.Get(crcConfig.DiskSize).AsInt(),
+		DiskSize:                 cfg.Get(crcConfig.DiskSize).AsUInt(),
 		CPUs:                     cfg.Get(crcConfig.CPUs).AsUInt(),
 		NameServer:               cfg.Get(crcConfig.NameServer).AsString(),
 		PullSecret:               cluster.NewNonInteractivePullSecretLoader(cfg, args.PullSecretFile),

pkg/crc/config/validations.go

@@ -30,7 +30,7 @@ func validateString(value interface{}) (bool, string) {
 
 // validateDiskSize checks if provided disk size is valid in the config
 func validateDiskSize(value interface{}) (bool, string) {
-	diskSize, err := cast.ToIntE(value)
+	diskSize, err := cast.ToUintE(value)
 	if err != nil {
 		return false, fmt.Sprintf("could not convert '%s' to integer", value)
 	}

pkg/crc/machine/config/config.go

@@ -9,9 +9,10 @@ type MachineConfig struct {
 	// Virtual machine configuration
 	Name string
 	// Memory holds value in MiB
-	Memory            uint
-	CPUs              uint
-	DiskSize          int
+	Memory uint
+	CPUs   uint
+	// DiskSize holds value in GiB
+	DiskSize          uint
 	ImageSourcePath   string
 	ImageFormat       string
 	SSHKeyPath        string

pkg/crc/machine/config/driver.go

@@ -4,7 +4,7 @@ import (
 	"github.com/crc-org/machine/libmachine/drivers"
 )
 
-func ConvertGiBToBytes(gib int) uint64 {
+func ConvertGiBToBytes(gib uint) uint64 {
 	return uint64(gib) * 1024 * 1024 * 1024
 }
 

pkg/crc/machine/driver.go

@@ -45,7 +45,7 @@ func setVcpus(host *host.Host, vcpus uint) error {
 	return updateDriverValue(host, vcpuSetter)
 }
 
-func setDiskSize(host *host.Host, diskSizeGiB int) error {
+func setDiskSize(host *host.Host, diskSizeGiB uint) error {
 	diskSizeSetter := func(driver *libmachine.VMDriver) bool {
 		capacity := config.ConvertGiBToBytes(diskSizeGiB)
 		if driver.DiskCapacity == capacity {

pkg/crc/machine/types/types.go

@@ -15,7 +15,7 @@ type StartConfig struct {
 	// Hypervisor
 	Memory   uint // Memory size in MiB
 	CPUs     uint
-	DiskSize int // Disk size in GiB
+	DiskSize uint // Disk size in GiB
 
 	// Nameserver
 	NameServer string

pkg/crc/validation/validation.go

@@ -34,7 +34,7 @@ func ValidateMemory(value uint, preset crcpreset.Preset) error {
 	return ValidateEnoughMemory(value)
 }
 
-func ValidateDiskSize(value int) error {
+func ValidateDiskSize(value uint) error {
 	if value < constants.DefaultDiskSize {
 		return fmt.Errorf("requires disk size in GiB >= %d", constants.DefaultDiskSize)
 	}