add reboot to admin access

Author: rawdaGastan

docs/manual/api.md

@@ -153,6 +153,14 @@ it means it can act like an access node to user private networks
 
 The next set of commands are ONLY possible to be called by the `farmer` only.
 
+### Reboot
+
+| command |body| return|
+|---|---|---|
+| `zos.admin.reboot` | - | - |
+
+Stops all services then reboot the node
+
 ### List Physical Interfaces
 
 | command |body| return|

pkg/zos_api/admin.go

@@ -4,8 +4,16 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+
+	"github.com/threefoldtech/zos/pkg/zinit"
 )
 
+func (g *ZosAPI) adminRebootHandler(ctx context.Context, payload []byte) (interface{}, error) {
+	zinit := zinit.Default()
+
+	return nil, zinit.Reboot()
+}
+
 func (g *ZosAPI) adminInterfacesHandler(ctx context.Context, payload []byte) (interface{}, error) {
 	// list all interfaces on node
 	type Interface struct {

pkg/zos_api/routes.go

@@ -45,6 +45,7 @@ func (g *ZosAPI) SetupRoutes(router *peer.Router) {
 
 	admin := root.SubRoute("admin")
 	admin.Use(g.authorized)
+	admin.WithHandler("reboot", g.adminRebootHandler)
 	admin.WithHandler("interfaces", g.adminInterfacesHandler)
 	admin.WithHandler("set_public_nic", g.adminSetPublicNICHandler)
 	admin.WithHandler("get_public_nic", g.adminGetPublicNICHandler)