add sentry function

pvnet_app/sentry.py

@@ -0,0 +1,24 @@
+""" Sentry tracer function """
+import os
+
+
+def traces_sampler(sampling_context):
+    """
+    Filter tracing for sentry logs.
+
+    Examine provided context data (including parent decision, if any)
+    along with anything in the global namespace to compute the sample rate
+    or sampling decision for this transaction
+    """
+
+    if os.getenv("ENVIRONMENT", "local") == "local":
+        return 0.0
+    elif "error" in sampling_context["transaction_context"]["name"]:
+        # These are important - take a big sample
+        return 1.0
+    elif sampling_context["parent_sampled"] is True:
+        # These aren't something worth tracking - drop all transactions like this
+        return 0.0
+    else:
+        # Default sample rate, report all errors
+        return 1.0