collect: Use UTC for times and dates

slapos/collect/__init__.py

@@ -29,7 +29,7 @@
 
 from __future__ import print_function
 from psutil import process_iter, NoSuchProcess, AccessDenied
-from time import strftime
+from time import strftime, gmtime
 import shutil
 import datetime
 from slapos.collect.db import Database
@@ -46,7 +46,7 @@ from slapos.collect.reporter import RawCSVDumper, \
 from .entity import get_user_list, Computer
 
 def _get_time():
-  return strftime("%Y-%m-%d -- %H:%M:%S").split(" -- ")
+  return strftime("%Y-%m-%d -- %H:%M:%S", gmtime()).split(" -- ")
 
 def build_snapshot(proc):
   try:
@@ -144,10 +144,10 @@ def do_collect(conf):
                       database=database,
                       location=consumption_report_directory)
     
-    base = datetime.datetime.today()
+    base = datetime.datetime.utcnow().date()
     for x in range(1, 3):
       report_file = consumption_report.buildXMLReport(
-          (base - datetime.timedelta(days=x)).strftime("%Y-%m-%d"))
+          (base - datetime.timedelta(days=x)).strftime("%Y-%m-%d"), gmtime())
 
       if report_file is not None:
         shutil.copy(report_file, xml_report_directory)

slapos/collect/db.py

@@ -28,7 +28,7 @@
 ##############################################################################
 
 import os
-from time import strftime
+from time import strftime, gmtime
 import datetime
 
 from slapos.util import sqlite_connect
@@ -162,7 +162,7 @@ class Database:
     self.close()
 
   def _getInsertionDateTuple(self):
-    return strftime("%Y-%m-d -- %H:%M:%S").split(" -- ")
+    return strftime("%Y-%m-d -- %H:%M:%S", gmtime()).split(" -- ")
 
   ###################
   # Insertion methods
@@ -252,7 +252,7 @@ class Database:
   def _getGarbageCollectionDateList(self, days_to_preserve=3):
     """ Return the list of dates to Preserve when data collect
     """
-    base = datetime.datetime.today()
+    base = datetime.datetime.utcnow().date()
     date_list = []
     for x in range(0, days_to_preserve):
       date_list.append((base - datetime.timedelta(days=x)).strftime("%Y-%m-%d"))
@@ -419,7 +419,7 @@ class Database:
     select_sql = "SELECT date, time FROM heating ORDER BY date, time DESC LIMIT 1"
     for __date, __time in self._execute(select_sql):
        _date = datetime.datetime.strptime("%s %s" % (__date, __time), "%Y-%m-%d %H:%M:%S")
-       return datetime.datetime.now() - _date
+       return datetime.datetime.utcnow() - _date
     return datetime.timedelta(weeks=520)
 
   def getLastZeroEmissionRatio(self):

slapos/collect/entity.py

@@ -79,7 +79,7 @@ class User(object):
                                     where="partition='%s'" % self.name):
           latest_date = datetime.strptime('%s %s' % date_time,
                                           "%Y-%m-%d %H:%M:%S")
-          if (datetime.now() - latest_date).seconds < time_cycle:
+          if (datetime.utcnow() - latest_date).seconds < time_cycle:
             # wait the time cycle
             return
           break

slapos/collect/reporter.py

@@ -59,7 +59,7 @@ class SystemReporter(Dumper):
   
   def dump(self, folder):
     """ Dump data """
-    _date = time.strftime("%Y-%m-%d")
+    _date = time.strftime("%Y-%m-%d", time.gmtime())
     self.db.connect()
     for item, collected_item_list in six.iteritems(self.db.exportSystemAsDict(_date)):
       self.writeFile(item, folder, collected_item_list)
@@ -94,7 +94,7 @@ class RawDumper(Dumper):
   """ Dump raw data in a certain format
   """
   def dump(self, folder):
-    date = time.strftime("%Y-%m-%d")
+    date = time.strftime("%Y-%m-%d", time.gmtime())
     self.db.connect()
     table_list = self.db.getTableList()
     for date_scope, amount in self.db.getDateScopeList(ignore_date=date):