Socket Access in Containers

[mstarks01]

I have attempted to start up a tmux session (i.e. tmux -L socket_name new-session -c /usr/local/bin/application -s session_name -d command) within an Ubuntu container and, while the process starts, I cannot connect to the socket with tmux. The socket is created as /tmp/tmux-1000/session_name= but tmux doesn't know it's there.

Is there anything about the container security model which prevents this? I suspect so. It works when I don't specify a socket. Which logs could I look to for further troubleshooting?

Edit: to clarify, this is an unprivileged container.

 

[mstarks01]

Anyone?

 

[fabian]

tmpfs in the container and tmpfs on the host are not shared

 

[mstarks01]

tmpfs in the container and tmpfs on the host are not shared

Thanks, fabian. But I'm not trying to share between the host and guest. Tmux is installed on and via guest access only.

 

[fabian]

it works here. how are you entering the container? can you include the tmux command that you are using to attach?

 

[mstarks01]

it works here. how are you entering the container? can you include the tmux command that you are using to attach?

tmux -L $TMUX_SOCKET attach-session -t $TMUX_SESSION

 

[fabian]

that works as expected here (provided the variables contain the right socket/session names ). what error do you get?