Have you ever thought to yourself "hey, I need a CLI tool for the web GUI I installed specifically to avoid this problem?" No? Oh...
Well anyway, allow me to introduce you to Waterlevel, a bash script a wrote primarily to manage the process of updating Portainer.
In order to update Portainer, you have to manually find the container's ID, stop it, and then remove it. After this, you also have to find the separate image ID and remove that image. Then you have to run docker run -d -p 8000:9000 --name=portainer --restart=always -v /var/run/docker.sock -v portainer_data:/data portainer/portainer-cs:latest. This may not seem like a big issue to many, but it bugged me enough to automate the process.
A simple bash script, currently 42 lines long.
I've included an install.sh script that should work on most *nix systems, but you can also just run this command instead to install and alias it globally:
sudo mv waterlevel /usr/bin/ && echo "alias wl=\"waterlevel\"" >> /etc/profile
If you use my install.sh script, you should be able to run wl as an alias of waterlevel.
waterlevel --help show help page
waterlevel --start start Portainer
waterlevel --stop stop Portainer
waterlevel --update update Portainer
I named the script "waterlevel" because ports and docks aren't very useful without water. If you encounter any issues please open an issue.