Allow viewing logs for specific processes

[adibsaad]

Add an option to specify which process to view logs for e.g.

overmind echo web

Also, would be nice to have logs be an alias for echo.

[DarthSim]

Hey Adib!

echo is only meant for streaming the daemonized process output to stdout. It doesn't have history and stuff. connect is more suitable for viewing the logs.

[gerardnico]

Hy Adib and Darth!

Quick question on how to subscribe to the overmind logs (came here while searching for a overmind logs command)

I'm restarting a process inside a docker container with overmind restart and I want to show the stdout of this process until I read a certain line.

Is there a way to subscribe to it via overmind ?

Thanks

Ps:

• I tried connect but it just shows the terminals.
• I know that I can use strace on the /proc/1/fd/1 (stdout descriptor) but I can't get this feature on the container
• I'm not a tmux afficionados and all I see in the doc go over pane and terminal (tty). It seems that you can watch them but I have no idea how it works.

Any pointer welcome. Have a nice day Nico

[DarthSim]

Hey @gerardnico! Unfortunately, Overmind doesn't have such a feature.

There's an ugly workaround (replace process_name with the actual process name):

overmind echo | grep --line-buffered -E '^([[:cntrl:]]\[\d+(;\d+)*m)?process_name\s*([[:cntrl:]]\[0m)? \| ' | sed 's/^.*\| //'

grep selects only the lines for the required process. All that ugly stuff around the process name is to match the coloring.

sed removes the process name from the lines.

[gerardnico]

Thanks @DarthSim Daemon mode then.

You still capture the stdout of the terminals because I get them in the docker logs with different colour. How do you do that. This is a feature of tmux?

Actually in other setups, I get the logs file of running process and redirect them to '/dev/fd/1' so that they show up in the docker logs command.

Thanks ! Pretty impressive. I'm a dummy with tty and overmind feels magical.