Merge pull request #2661 from kleesc/securityworker_cpu

Raise an APIRequestFailure exception when security scanner is unavail…

util/secscan/analyzer.py

@@ -57,7 +57,7 @@ class LayerAnalyzer(object):
     except AnalyzeLayerRetryException:
       # Something went wrong when trying to analyze the layer, but we should retry, so leave
       # the layer unindexed. Another worker will come along and handle it.
-      pass
+      raise APIRequestFailure
     except MissingParentLayerException:
       # Pass upward, as missing parent is handled in the analyze_recursively method.
       raise
@@ -145,7 +145,7 @@ class LayerAnalyzer(object):
         try:
           layer_data = self._api.get_layer_data(layer, include_vulnerabilities=True)
         except APIRequestFailure:
-          layer_data = None
+          raise
 
         if layer_data is not None:
           # Dispatch events for any detected vulnerabilities