promise: Allow to configure failure_amount in check_surykatka_json

slapos/promise/plugin/check_surykatka_json.py

@@ -24,6 +24,8 @@ class RunPromise(GenericPromise):
     super(RunPromise, self).__init__(config)
     # Set frequency compatible to default surykatka interval - 2 minutes
     self.setPeriodicity(float(self.getConfig('frequency', 2)))
+    self.failure_amount = int(self.getConfig('failure_amount', 3))
+    self.result_count = self.failure_amount
     self.error_list = []
     self.info_list = []
 
@@ -268,4 +270,5 @@ class RunPromise(GenericPromise):
     self.emitLog()
 
   def anomaly(self):
-    return self._test(result_count=3, failure_amount=3)
+    return self._test(
+      result_count=self.result_count, failure_amount=self.failure_amount)