Add check that we really want runtime only

Author: pglombardo

instana/runtime.py

@@ -6,9 +6,10 @@
 
 def hook(module):
     """ Hook method to install the Instana middleware into Flask """
-    if "INSTANA_DEV" in os.environ:
-        level = logging.DEBUG
-    else:
-        level = logging.WARN
-    opts = options.Options(log_level=level)
-    ot.global_tracer = tracer.InstanaTracer(opts)
+    if os.environ["AUTOWRAPT_BOOTSTRAP"] == "runtime":
+        if "INSTANA_DEV" in os.environ:
+            level = logging.DEBUG
+        else:
+            level = logging.WARN
+        opts = options.Options(log_level=level)
+        ot.global_tracer = tracer.InstanaTracer(opts)