Implement Ceph volume resize and rename in clients

[1/2] Implements #44

client-api/api_lib/pvcapi.py

@@ -803,6 +803,40 @@ def ceph_volume_add(pool, name, size):
     }
     return flask.jsonify(output), retcode
 
+def ceph_volume_resize(pool, name, size):
+    """
+    Resize an existing Ceph RBD volume in the PVC Ceph storage cluster.
+    """
+    zk_conn = pvc_common.startZKConnection(config['coordinators'])
+    retflag, retdata = pvc_ceph.resize_volume(zk_conn, pool, name, size)
+    if retflag:
+        retcode = 200
+    else:
+        retcode = 400
+
+    pvc_common.stopZKConnection(zk_conn)
+    output = {
+        'message': retdata.replace('\"', '\'')
+    }
+    return flask.jsonify(output), retcode
+
+def ceph_volume_rename(pool, name, new_name):
+    """
+    Rename a Ceph RBD volume in the PVC Ceph storage cluster.
+    """
+    zk_conn = pvc_common.startZKConnection(config['coordinators'])
+    retflag, retdata = pvc_ceph.rename_volume(zk_conn, pool, name, new_name)
+    if retflag:
+        retcode = 200
+    else:
+        retcode = 400
+
+    pvc_common.stopZKConnection(zk_conn)
+    output = {
+        'message': retdata.replace('\"', '\'')
+    }
+    return flask.jsonify(output), retcode
+
 def ceph_volume_remove(pool, name):
     """
     Remove a Ceph RBD volume to the PVC Ceph storage cluster.

client-api/pvc-api.py

@@ -799,8 +799,19 @@ def api_ceph_volume_element(pool, volume):
         return pvcapi.ceph_volume_list(pool, volume)
 
     if flask.request.method == 'PUT':
-        # TODO: #44
-        flask.abort(501)
+        if 'size' in flask.request.values:
+            size = flask.request.values['size']
+
+        if 'name' in flask.request.values:
+            name = flask.request.values['name']
+
+        if size and not name:
+            return pvcapi.ceph_volume_resize(pool, volume, size) 
+   
+        if name and not size:
+            return pvcapi.ceph_volume_rename(pool, volume, name)
+
+        return flask.jsonify({"message":"ERROR: No name or size specified, or both specified; not changing anything."}), 400
 
     if flask.request.method == 'DELETE':
         return pvcapi.ceph_volume_remove(pool, volume)