docker in portainer on OMV

[g13092]

I can't get this to stay running as a docker. Starts and dies within a few seconds. I'm creating the container using Portainer interface. I'm not sure I'm decoding the Docker run command correctly to get the continter to work:

docker run -d -P -v /var/log:/log mthenw/frontail /log/syslog

I understand the -P causes the ports to 'pass through' without explicitly publishing them. I understand to bind the host volume /var/log to the container volume /log. I understand the image name. I don't understand the purpose of the trailing /log/syslog. I THINK it means to select syslog in the logging driver pull down. I've tried several combinations, none successful.

In syslog, I see dockerd blah blah (Can't copy paste) "Handler for GET /containers/asdfasdfasdfasdfasdfsfsadf/logs returned error: configured logging driver does not support reading"

OMV is debian based. Any idea why I'm crashing?

[g13092]

:D user error, imagine that. Tool works good when I fire up from command line. Now I understand the /log/syslog and where it goes (in Command in Portainer, essentially an argument of the entry point.)