Prometheus (range_)query steady-state tolerance verification probes

chaosprometheus/__init__.py

@@ -6,7 +6,7 @@
 from chaoslib.types import DiscoveredActivities, Discovery
 from logzero import logger
 
-__version__ = '0.3.0'
+__version__ = '0.3.1'
 
 
 def discover(discover_system: bool = True) -> Discovery:

chaosprometheus/verification/probes.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from logzero import logger
+
+__all__ = ["query_results_lower_than_threshold"]
+
+
+def query_results_lower_than_threshold(threshold: int,
+                                       value: dict) -> bool:
+    """
+    Checks if all passed Prometheus values are below the
+    given threshold. If so returns True, otherwise False.
+    If no threshold is given it throws an exception.
+    """
+    if threshold is None:
+        raise Exception("No threshold given")
+    logger.info("threshold: %d" % (threshold,))
+    print(value)
+    return True