how the hell do I find docker

Type “docker” in terminal and hit enter. Since it’s installed, your system will likely recognize it as a command and populate a help menu for you. You’ll want to visit docker’s website for a full manual.

Is there a Linux for people who are deeply entrenched in how Windows works?

Zorin is this, though your choice of Mint is good too. It will not help you understand docker though.

If you’re trying to do Audibookshelf on a home server CasaOS made docker super easy for me.

Once it’s installed in the terminal, how the hell do I find docker so I can start playing with it?

It’s not installed “in the terminal.” It’s installed on the computer; the terminal is just one way you might interact with it.

In particular, docker is a type of program called a ‘daemon’ or ‘server’: it runs in the background and doesn’t have an interface, per se. You can run docker commands and get their output, and you can of course interact with the services you’re using docker to run, but there is no “docker app” that runs as a foreground interactive process (either GUI app or ncurses terminal app).

Docker is a cli only app, if you want a gui interface check out docker desktop

https://docs.docker.com/desktop/install/linux-install/

I can at least assure you that as a developer, docker is annoying to set up and their documentation is confusing.

Most things in Linux are easier to set up but sometimes installing things happens to be harder than it should be and docker is one of them.

You should keep in mind that compared to other OSs, a lot of Linux software is CLI only, so they won’t always show up in the applications list and you’ll need to check if you have it in a terminal.

To be fair, you’re taking on a lot of new things at once. You can spin up docker containers on windows too, all while using a UI. I think it’s great your exposing yourself to self hosting, linux, command line interface, and containerization all at once, but don’t beat yourself up for it taking longer than expected. A lot of it takes time. I encourage you to keep trying and playing. Good luck!

I strongly suggest that you install portainer if this is your first time playing with docker.

It’ll make your life and learning curve dramatically easier.

I’m not suggesting you dont learn how to do it all over CLI (I actually think CLI is way easier and faster to deploy once you get the hang of it), but if you’re looking to deploy something right away, I believe portainer is your best bet.

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Docker is one of the container technologies

Containers vs Images

This is a very simplified explanation, which hopefully clears up for you. As with all simplifications, they aren’t entirely correct.

Containers put processes, files, and networking into a space where they are secluded from the rest. You main OS is called the host and the container is called the guest. You can selectively share resources with the guest. To use an analogy, if you house were the computer with linux, if you took a room, put tools and resources for those tools into it, put workers into it, got them to start working and locked the door, they’d be contained in the room, unable to break out. If you want to give workers access to resources, you either a window, a corridor, or even a door depending on much access you want to give them.

Containers are created from an image. Think of it as the tools, resources, and configuration required every time you create a room in your house for workers to do a job. The woodworkers will need different tools and resources than say metalworkers.

Most images are stored on DockerHub. So when you do docker pull linuxserver/sonarr you download the image. When you do docker run linuxserver/sonarr you create a container from an image.

Installation

You’re on Cinnamon Mint which is linux distribution derived from another linux distribution called debian. You have to follow the installation instructions. Everything is there. If something doesn’t work, it’s most likely because you skipped a step. The most important ones are the post-installation steps:

• Adding your user to the docker group
• Logging out and back in (or simply restarting)

Those are the most commonly missed steps. I’ve fallen for this trap too!

Local help

To use linux, you need to learn about ways to help yourself or find help. On linux, most well-written programs print a help. Simply running the command without any arguments most often output a help text --> running docker does so. If they don’t, then the --help flag often does --> docker --help. The shorthand is -h --> docker -h.

Some commands have sub commands e.g docker run, docker image, docker ps, … . Those subcommands also take flags of which -h and --help are available.

The help output is often not extensive and programs often have a manual. To access it the command is man --> man find will output the manual for the find command. Docker doesn’t have a local manual but an online one.

For clarification when running a command there are different ways to interpret the text after the command:

Flags/Options

These are named parameters to the command. Some do not take input like -h and --help which are called flags. Some do like --file /etc/passwd and are often called options.

Arguments

These are unnamed parameters and each command interprets them differently. echo "hello world" --> echo is the command and "hello world" is the argument. Some commands can take multiple arguments

Running containers

Imperatively

As described above docker run linuxserver/sonarr runs an image in a container. However, it runs in the foreground (as opposed to the background in what is most often called a “daemon”). Starting in the foreground is most likely not how you want to run things as that means if you close your terminal, you end the process too. To run something in the background, you use docker run --detatch linuxserver/sonarr.

You can pass options like -v or --volume to make a file or folder from your host system available in the guest e.g -v /path/on/host:/tmp/path/in/guest. Or -p / --port to forward a host port to a guest port e.g -p 8080:80. That means if you access port 8080 on your host, the traffic will be forwarded to port 80 in the guest.

These are imperatives as in you command the computer to do a specific action. Run that docker image, stop that docker container, restart these containers, start a container with this port forward and that volume with this user …

Declaratively

If you don’t want to keep typing the same commands, you can declare everything about your containers up front. Their volumes, ports, environment variables, which image is used, which network card/interface they have access to, which other network they share with other containers, and so on.

This is done with docker-compose or docker compose for newer docker versions (not all operating systems have the new docker version).

This already a long text, so if you want to know more, the best resource is the docker compose manual and the compose file reference.

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Hopefully this helped with the basics and understanding what you’re doing. There are probably great video resources out there that explain it more didactically than I do with steps you can follow along.

Good luck!

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Once it’s installed in the terminal, how the hell do I find docker so I can start playing with it?

Type docker in the terminal, it’s a CLI application.

But it sounds like you might want to install Docker Desktop, which does give you a GUI to use.

Keep in mind that you’re not just learning to use linux, but also learning to use docker,and docker is a complex tool by itself, which makes your journey significantly harder.

I never user Sabnzbd so I wouldn’t be of much help. However, you could post some of the problems you find, so that other people lay help you.

AI can be of great help when learning docker, as it is genuinely super confusing. You don’t “find” docker, it’s a terminal program that you interact with… From the terminal.

I’m gonna get A LOT of hate for this, but check out Warp terminal. It has a really nice GUI for configuration and really nice autocomplete for commands.

Linux is a slightly different way of thinking. There are any number of ways that you can solve any problem you have. In Windows there are usually only one or two that work. This is largely a result of the hacker mentality from which linux and Unix came from. “If you don’t like how it works, rewrite it your way” and “Read the F***ing Manual” were frequent refrains when I started playing with linux.

Mint is a fine distro which is based off of Ubuntu, if I remember correctly. Most documentation that applies to Ubuntu will also apply to you.

Not sure what exactly you installed, but I’m guessing that you did something along the lines of sudo apt-get install docker.

If you did that without doing anything ahead of time, what you probably got was a slightly out of date version of docker only from Mint’s repositories. Follow the instructions here to uninstall whatever you installed and install docker from docker’s own repositories.

The Docker Desktop that you may be used to from Windows is available for linux, however it is not part of the default install usually. You might look at this documentation.

I don’t use it, as I prefer ctop combined with docker-compose.

Towards that end, here is my docker-compose.yaml for my instance of Audiobookshelf. I have it connected to my Tailscale tailnet, but if you comment out the tailscale service stuff and uncomment the port section in the audiobookshelf service, you can run it directly. Assuming your not making any changes,

Create a directory somewhere,

mkdir ~/docker

mkdir ~/docker/audiobookshelf

This creates a directory in your home directory called docker and then a directory within that one called audiobookshelf. Now we want to enter that directory.

cd ~/docker/audiobookshelf

Then create your docker compose file

touch docker-compose.yaml

You can edit this file with whatever text editor you like, but I prefer micro which you may not have installed.

micro docker-compose.yaml

and then paste the contents into the file and change whatever setting you need to for your system. At a minimum you will need to change the volumes section so that the podcast and audiobook paths point to the correct location on your system. it follows the format :.

Once you’ve made all the needed changes, save and exit the editor and start the the instance by typing

sudo docker compose up -d

Now, add the service directly to your tailnet by opening a shell in the tailscale container

sudo docker exec -it audiobookshelf-tailscale /bin/sh

and then typing

tailscale up

copy the link it gives you into your browser to authenticate the instance. Assuming that neither you or I made any typos you should now be able to access audiobookshelf from http://books If you chose to comment out all the tailscale stuff you would find it at http://localhost:13378

docker-compose.yaml

version: "3.7"
services:
  tailscale:
    container_name: audiobookshelf-tailscale
    hostname: books                         # This will become the tailscale device name
    image: ghcr.io/tailscale/tailscale:latest
    volumes:
      - "./tailscale_var_lib:/var/lib"        # State data will be stored in this directory
      - "/dev/net/tun:/dev/net/tun"           # Required for tailscale to work
    cap_add:                                    # Required for tailscale to work
      - net_admin
      - sys_module
    command: tailscaled
    restart: unless-stopped
  audiobookshelf:
    container_name: audiobookshelf
    image: ghcr.io/advplyr/audiobookshelf:latest
    restart: unless-stopped
#    ports:                                                                  # Not needed due to tailscale
#      - 13378:80                                                                                                     
    volumes:
      - '/mnt/nas/old_media_server/media/books/Audio Books:/audiobooks'       # This line has quotes because there is a space that needed to be escaped.
      - /mnt/nas/old_media_server/media/podcasts:/podcasts                               # See, no quotes needed here, better to have them though.
      - /opt/audiobookshelf/config:/config                                       # I store my docker services in the /opt directory. You may want to change this to './config' and './metadata' while your playing around
      - /opt/audiobookshelf/metadata:/metadata
    network_mode: service:tailscale                                  # This line tells the audiobookshelf container to send all traffic to tailscale container

I’ve left my docker-compose file as-is so you can see how it works in my setup.

OP: chatGPT is your personal Linux guru. Pretend it’s your friend who knows everything about linux and tell it what you want to achieve.

Paste in any error messages and it will tell you how to fix them. Just make sure it knows what distro you’re using first.

That’s how I learned to use docker :)

The crazy pills are the first step in learning. Embrace the crazy. Take more pills.