Thank you for your awesome help!Some guidance with portainer please! So I installed it, enter the web UI from my windows PC, create a password, log in. After that in the connection page I have to enter remote connection, right? But here if I enter the IP address of my machine running LE/ portainer docker what happens if the IP address changes after reboots? And after connecting it took me to a dashboard where my running plex container was not listed. Everything was 0. Anything needed to be configured under networks etc? If there is some guide, please do point to it.
No, you have to select the local option. Even though you are connecting remotely, portainer is running on the same machine docker service is running on, so it needs to connect to the local service.
Once you do that, all containers and images should show up.
Just a word of caution, don't use portainer to manage linuxserver addon installed containers, because the addons have their built in start, stop mechanisms through systemd and stopping and starting them through portainer will cause issues.
You should use portainer to only manage containers you create through portainer itself.