Support profiling containerized applications (#280)

Author: dmelikyan

instana/autoprofile/sampler_scheduler.py

@@ -149,10 +149,12 @@ def report(self):
         profile = self.sampler.build_profile(
             to_millis(self.profile_duration), 
             to_millis(time.time() - self.profile_start_ts))
-        profile_dict = profile.to_dict()
 
         if self.profiler.agent.can_send():
-            self.profiler.agent.collector.profile_queue.put(profile_dict)
+            if self.profiler.agent.announce_data.pid:
+                profile.process_id = str(self.profiler.agent.announce_data.pid)
+
+            self.profiler.agent.collector.profile_queue.put(profile.to_dict())
 
             logger.debug(self.config.log_prefix + ': reporting profile:')
         else: