do raven for lambda correctly, fixes #387 (#391)

docs/dev.rst

@@ -300,7 +300,7 @@ know is to find out by seeing if ``pip install ...`` fails:
 
 .. code-block:: shell
 
-    root@2ec530633121:/app# pip install -r requirements/default.txt -c requirements/constraints.txt
+    root@2ec530633121:/app/jobs# pip install -r requirements/default.txt -c requirements/constraints.txt
 
 If it fails because an extra constraint package is required add it like this:
 

jobs/buildhub/lambda_s3_event.py

@@ -12,8 +12,7 @@
 
 import aiohttp
 import kinto_http
-import raven
-from raven.handlers.logging import SentryHandler
+from raven.contrib.awslambda import LambdaClient
 
 from buildhub import utils
 from buildhub.inventory_to_records import (
@@ -28,7 +27,7 @@
 
 # Optional Sentry with synchronuous client.
 SENTRY_DSN = os.getenv('SENTRY_DSN')
-sentry = raven.Client(SENTRY_DSN, transport=raven.transport.http.HTTPTransport)
+sentry = LambdaClient(SENTRY_DSN)
 
 logger = logging.getLogger()  # root logger.
 metrics = get_metrics('buildhub')
@@ -242,16 +241,12 @@ async def main(loop, event):
                     metrics.incr('s3_event_record_created')
 
 
+@sentry.capture_exceptions
 def lambda_handler(event, context):
     # Log everything to stderr.
     logger.addHandler(logging.StreamHandler(stream=sys.stdout))
     logger.setLevel(logging.DEBUG)
 
-    # Add Sentry (no-op if no configured).
-    handler = SentryHandler(sentry)
-    handler.setLevel(logging.ERROR)
-    logger.addHandler(handler)
-
     loop = asyncio.get_event_loop_policy().new_event_loop()
 
     try:

jobs/requirements/default.txt

@@ -23,9 +23,9 @@ kinto-http==9.1.1 \
 kinto-wizard==2.3.0 \
     --hash=sha256:7b9a4f856b50e53079cd728feb87787b3001b0cd3b3c0ff9981a1f196adf6f2d \
     --hash=sha256:c83102fcff999b4914a2bd146114566634f34a99b963885054a123b0426612a9
-raven==6.5.0 \
-    --hash=sha256:0adae40e004dfe2181d1f2883aa3d4ca1cf16dbe449ae4b445b011c6eb220a90 \
-    --hash=sha256:84da75114739191bdf2388f296ffd6177e83567a7fbaf2701e034ad6026e4f3b
+raven==6.6.0 \
+    --hash=sha256:738a52019d01955d5b44b49d67c9f2f4cedb1b4f70d4fb0b493931174d00e044 \
+    --hash=sha256:92bf4c4819472ed20f1b9905eeeafe1bc6fe5f273d7c14506fdb8fb3a6ab2074
 markus==1.1 \
     --hash=sha256:813ac8cd0eb68bcf7ee618ac2544ce20de5eb0ba27b12f50973c29742800b058 \
     --hash=sha256:821377379e0d225a870996e4dcd1aa5305e4030a8b9b5d8b38dc843cbc30dfa8