feat(ps):add ps:stop/start command

Author: lijianguo

rootfs/api/models/app.py

@@ -498,6 +498,12 @@ def scale(self, user, structure):  # noqa
 
     def stop(self, user, types):  # noqa
         """scale containers which types contained down """
+        rs_zero = []
+        for _ in types:
+            if not self.structure.get(_, 0):
+                rs_zero.append(_)
+        if rs_zero:
+            raise DryccException("process {} replicas is zero".format(",".join(rs_zero))) # noqa
 
         if self.release_set.filter(failed=False).latest().build is None:
             raise DryccException('No build associated with this release')
@@ -542,6 +548,13 @@ def start(self, user, types):  # noqa
         if self.release_set.filter(failed=False).latest().build is None:
             raise DryccException('No build associated with this release')
 
+        rs_zero = []
+        for _ in types:
+            if not self.structure.get(_, 0):
+                rs_zero.append(_)
+        if rs_zero:
+            raise DryccException("process {} replicas is zero".format(",".join(rs_zero))) # noqa
+
         structure = {}
         for k, v in self.structure.items():
             if k in types:

rootfs/api/views.py

@@ -342,7 +342,7 @@ def list(self, *args, **kwargs):
                 if _ not in exist_pod_type:
                     data.append({"type": _,
                                  "replicas": 0,
-                                 "state": "stopped"})
+                                 "state": "started"})
 
         # # fake out pagination for now
         pagination = {'results': data, 'count': len(data)}