title: Google Cloud Run pubsub pull listener app fails to start
body: <p>I'm testing pubsub &quot;pull&quot; subscriber on Cloud Run using just listener part of this sample java code (SubscribeAsyncExample...reworked slightly to fit in my SpringBoot app):
  <a href="https://cloud.google.com/pubsub/docs/quickstart-client-libraries#java_1" rel="nofollow noreferrer">https://cloud.google.com/pubsub/docs/quickstart-client-libraries#java_1</a>
  It fails to startup during deploy...but while it's trying to start, it does pull items from the pubsub queue. Originally, I had an HTTP &quot;push&quot; receiver (a @RestController) on a different pubsub topic and that worked fine. Any suggestions? I'm new to Cloud Run. Thanks.</p>
  <pre><code>Deploying...
    Creating Revision... Cloud Run error: Container failed to start. Failed to start and then listen on the port defined
    by the PORT environment variable. Logs for this revision might contain more information....failed
  Deployment failed
  In logs:
  2020-08-11 18:43:22.688 INFO 1 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4606 ms
  2020-08-11T18:43:25.287759Z Listening for messages on projects/ce-cxmo-dev/subscriptions/AndySubscriptionPull:
  2020-08-11T18:43:25.351650801Z Container Sandbox: Unsupported syscall setsockopt(0x18,0x29,0x31,0x3eca02dfd974,0x4,0x28). It is very likely that you can safely ignore this message and that this is not the cause of any error you might be troubleshooting. Please, refer to https://gvisor.dev/c/linux/amd64/setsockopt for more information.
  2020-08-11T18:43:25.351770555Z Container Sandbox: Unsupported syscall setsockopt(0x18,0x29,0x12,0x3eca02dfd97c,0x4,0x28). It is very likely that you can safely ignore this message and that this is not the cause of any error you might be troubleshooting. Please, refer to https://gvisor.dev/c/linux/amd64/setsockopt for more information.
  2020-08-11 18:43:25.680 WARN 1 --- [ault-executor-0] i.g.n.s.i.n.u.internal.MacAddressUtil : Failed to find a usable hardware address from the network interfaces; using random bytes: ae:2c:fb:e7:92:9c:2b:24
  2020-08-11T18:45:36.282714Z Id: 1421389098497572
  2020-08-11T18:45:36.282763Z Data: We be pub-sub'n in pull mode2!!
  Nothing else after this and the app stops running.
  
  @Component
  public class AndyTopicPullRecv {
    
    public AndyTopicPullRecv() 
    {
      subscribeAsyncExample(&quot;ce-cxmo-dev&quot;, &quot;AndySubscriptionPull&quot;);
    }
    
    public static void subscribeAsyncExample(String projectId, String subscriptionId) {
      ProjectSubscriptionName subscriptionName =
          ProjectSubscriptionName.of(projectId, subscriptionId);
  
      // Instantiate an asynchronous message receiver.
      MessageReceiver receiver =
          (PubsubMessage message, AckReplyConsumer consumer) -&gt; {
            // Handle incoming message, then ack the received message.
            System.out.println(&quot;Id: &quot; + message.getMessageId());
            System.out.println(&quot;Data: &quot; + message.getData().toStringUtf8());
            consumer.ack();
          };
  
      Subscriber subscriber = null;
      try {
        subscriber = Subscriber.newBuilder(subscriptionName, receiver).build();
        // Start the subscriber.
        subscriber.startAsync().awaitRunning();
        System.out.printf(&quot;Listening for messages on %s:\n&quot;, subscriptionName.toString());
        // Allow the subscriber to run for 30s unless an unrecoverable error occurs.
        // subscriber.awaitTerminated(30, TimeUnit.SECONDS);
        subscriber.awaitTerminated();
        System.out.printf(&quot;Async subscribe terminated on %s:\n&quot;, subscriptionName.toString());
      // } catch (TimeoutException timeoutException) {
      } catch (Exception e) {
        // Shut down the subscriber after 30s. Stop receiving messages.
        subscriber.stopAsync();
        System.out.printf(&quot;Async subscriber exception: &quot; + e); 
      }
    }
  }
  </code></pre>