add more codes

pkg/containers/lxc/lxc.go

@@ -10,27 +10,28 @@ type Manager interface {
 }
 
 type Spec struct {
-	ID           string
-	Name         string
-	Template     string
-	RootfsPool   string
-	RootfsSizeG  int
-	NICs         []NICSpec
-	Limits       Limits
-	Unprivileged bool
+	ID           string    `json:"id" yaml:"id"`
+	Name         string    `json:"name" yaml:"name"`
+	Template     string    `json:"template" yaml:"template"`
+	RootfsPool   string    `json:"rootfs_pool" yaml:"rootfs_pool"`
+	RootfsSizeG  int       `json:"rootfs_size_g" yaml:"rootfs_size_g"`
+	RootfsPath   string    `json:"rootfs_path" yaml:"rootfs_path"`
+	NICs         []NICSpec `json:"nics" yaml:"nics"`
+	Limits       Limits    `json:"limits" yaml:"limits"`
+	Unprivileged bool      `json:"unprivileged" yaml:"unprivileged"`
 }
 
 type NICSpec struct {
-	Bridge string
-	VLAN   int
-	HWAddr string
-	MTU    int
-	Name   string
+	Bridge string `json:"bridge" yaml:"bridge"`
+	VLAN   int    `json:"vlan" yaml:"vlan"`
+	HWAddr string `json:"hwaddr" yaml:"hwaddr"`
+	MTU    int    `json:"mtu" yaml:"mtu"`
+	Name   string `json:"name" yaml:"name"`
 }
 
 type Limits struct {
-	CPU      int
-	MemoryMB int
+	CPU      int `json:"cpus" yaml:"cpus"`
+	MemoryMB int `json:"memory_mb" yaml:"memory_mb"`
 }
 
 type Container struct {

pkg/containers/lxc/lxc_cmd.go

@@ -101,7 +101,10 @@ func renderConfig(spec Spec) (string, error) {
 		fmt.Fprintf(buf, "lxc.idmap = u 0 %d %d\n", uidStart, count)
 		fmt.Fprintf(buf, "lxc.idmap = g 0 %d %d\n", uidStart, count)
 	}
-	rootfs := fmt.Sprintf("/var/lib/lxc/%s/rootfs", spec.Name)
+	rootfs := spec.RootfsPath
+	if rootfs == "" {
+		rootfs = fmt.Sprintf("/var/lib/lxc/%s/rootfs", spec.Name)
+	}
 	fmt.Fprintf(buf, "lxc.rootfs.path = dir:%s\n", rootfs)
 	for idx, nic := range spec.NICs {
 		fmt.Fprintf(buf, "lxc.net.%d.type = veth\n", idx)