Merge pull request #263 from mabeett/add_rng_device

feat: support VM VirtIO-based Random Number Generator configuration

README.md

@@ -157,6 +157,11 @@ createQemu JSON Sample:
       "tag": -1
     }
   },
+  "rng0": {
+    "source": "/dev/urandom",
+    "max_bytes": "1024",
+    "period": "1000"
+  },
   "usb": {
     "0": {
       "host": "0658:0200",

proxmox/config_qemu.go

@@ -48,6 +48,7 @@ type ConfigQemu struct {
 	Description     string        `json:"description,omitempty"`
 	Disks           *QemuStorages `json:"disks,omitempty"`
 	EFIDisk         QemuDevice    `json:"efidisk,omitempty"`   // TODO should be a struct
+	RNGDrive        QemuDevice    `json:"rng0,omitempty"`      // TODO should be a struct
 	FullClone       *int          `json:"fullclone,omitempty"` // TODO should probably be a bool
 	HaGroup         string        `json:"hagroup,omitempty"`
 	HaState         string        `json:"hastate,omitempty"` // TODO should be custom type with enum
@@ -179,6 +180,9 @@ func (config ConfigQemu) CreateVm(vmr *VmRef, client *Client) (err error) {
 	// Create EFI disk
 	config.CreateQemuEfiParams(params)
 
+	// Create VirtIO RNG
+	config.CreateQemuRngParams(params)
+
 	// Create vga config.
 	vgaParam := QemuDeviceParam{}
 	vgaParam = vgaParam.createDeviceParam(config.QemuVga, nil)
@@ -226,6 +230,9 @@ func (config *ConfigQemu) defaults() {
 	if config.Bios == "" {
 		config.Bios = "seabios"
 	}
+	if config.RNGDrive == nil {
+		config.RNGDrive = QemuDevice{}
+	}
 	if config.EFIDisk == nil {
 		config.EFIDisk = QemuDevice{}
 	}
@@ -419,6 +426,9 @@ func (config ConfigQemu) mapToApiValues(currentConfig ConfigQemu) (rebootRequire
 	// Create EFI disk
 	config.CreateQemuEfiParams(params)
 
+	// Create VirtIO RNG
+	config.CreateQemuRngParams(params)
+
 	// Create networks config.
 	config.CreateQemuNetworksParams(params)
 
@@ -1503,6 +1513,25 @@ func (c ConfigQemu) CreateIpconfigParams(params map[string]interface{}) error {
 	return nil
 }
 
+// Create RNG parameter.
+func (c ConfigQemu) CreateQemuRngParams(params map[string]interface{}) {
+	rngParam := QemuDeviceParam{}
+	rngParam = rngParam.createDeviceParam(c.RNGDrive, nil)
+
+	if len(rngParam) > 0 {
+		rng_info := []string{}
+		rng := ""
+		for _, param := range rngParam {
+			key := strings.Split(param, "=")
+			rng_info = append(rng_info, fmt.Sprintf("%s=%s", key[0], key[1]))
+		}
+		if len(rng_info) > 0 {
+			rng = strings.Join(rng_info, ",")
+			params["rng0"] = rng
+		}
+	}
+}
+
 // Create efi parameter.
 func (c ConfigQemu) CreateQemuEfiParams(params map[string]interface{}) {
 	efiParam := QemuDeviceParam{}
@@ -1614,6 +1643,8 @@ func (p QemuDeviceParam) createDeviceParam(
 				confValue = sValue
 			} else if iValue, ok := value.(int); ok && iValue > 0 {
 				confValue = iValue
+			} else if iValue, ok := value.(float64); ok && iValue > 0 {
+				confValue = iValue
 			}
 			if confValue != nil {
 				deviceConf := fmt.Sprintf("%v=%v", key, confValue)