Aquatone Doesn't Cleanup Tmp files

[0xdade]

Version:
Latest

Describe the bug
Chrome stops producing screenshots when /tmp has too many entries in it. Aquatone isn't cleaning up it's tmp files, so the longer an agent runs, the more likely it will run into this. Especially if one agent is running many many scan threads (it was first noticed on an agent running 250 scan threads).

To Reproduce

We can probably mock it like so:

Steps to reproduce the behavior:

1. Create a ton of directories in /tmp via a bash loop
2. chromium-browser --headless --screenshot="test.png" https://0xda.de
3. Get error:

Expected behavior
These files shouldn't be left around forever. I'm not sure if this is something that a smarter init system would fix or if it's a problem with aquatone, or if the underlying problem is that chromium seems to choke when tmp is really full.

Screenshots / Logs

[0903/183339.224279:WARNING:discardable_shared_memory_manager.cc(194)] Less than 64MB of free space in temporary directory for shared memory files: 3
[0903/183339.869269:ERROR:broker_posix.cc(46)] Received unexpected number of handles
[0903/183339.905041:ERROR:broker_posix.cc(46)] Received unexpected number of handles
[0903/183339.905283:ERROR:validation_errors.cc(87)] Invalid message: VALIDATION_ERROR_DESERIALIZATION_FAILED
[0903/183339.905331:ERROR:browser_child_process_host_impl.cc(726)] Terminating child process for bad message: Received bad user message: Validation failed for viz.mojom.CopyOutputResultSender.0  [VALIDATION_ERROR_DESERIALIZATION_FAILED]
[0903/183339.909734:WARNING:gpu_process_host.cc(1233)] The GPU process has crashed 1 time(s)
[0903/183339.925934:WARNING:gpu_process_host.cc(975)] Reinitialized the GPU process after a crash. The reported initialization time was 13 ms
[0903/183339.938050:ERROR:broker_posix.cc(46)] Received unexpected number of handles
[0903/183339.938268:ERROR:validation_errors.cc(87)] Invalid message: VALIDATION_ERROR_DESERIALIZATION_FAILED
[0903/183339.938324:ERROR:browser_child_process_host_impl.cc(726)] Terminating child process for bad message: Received bad user message: Validation failed for viz.mojom.CopyOutputResultSender.0  [VALIDATION_ERROR_DESERIALIZATION_FAILED]
[0903/183339.941788:WARNING:gpu_process_host.cc(1233)] The GPU process has crashed 2 time(s)
[0903/183339.957164:WARNING:gpu_process_host.cc(975)] Reinitialized the GPU process after a crash. The reported initialization time was 13 ms
[0903/183339.957734:ERROR:headless_shell.cc(531)] Capture screenshot failed

[0xdade]

Temporary workaround can be a cron job on the host that does something like:

docker exec natlas_agent find /tmp -name aquatone-chrome\* -type d -mmin +60 -delete