You can easily configure your application to to forward its logs to Papertrail.
Set up a Syslog Forwarder
Go to Log Destinations and click Create Log Destination
Make sure that TLS encryption under TCP is checked
Note the hostname and port of your syslog destination
Create a Syslog Resource
Use the syslog endpoint from the previous step to create a
$ convox rack resources create syslog Url=tcp+tls://logs1.papertrailapp.com:12345 Creating syslog-3785 (syslog)... CREATING
Link the Resource
Link the resource to any application whose logs you would like to forward to Papertrail.
$ convox rack resources link syslog-3785 --app example Linked syslog-3786 to example