How to change log source in Nomad?

Question

I have a CLI application which runs on Nomad,

task "create-cli" {
    driver = "docker"
    config {
        image = "cli-app:local"
        tty = true
        auth_soft_fail = true
    }
}

Now on Nomad web UI, if I pull up logs, I see CLI artefacts that one would see when attaching to that container. But I have this file separately stored in that container logs/logs_app.log, how can I configure nomad to show me logs from that file in the web UI.

P.S. I didn't find tags for nomad and this doesn't let me create new tags with my reputation.