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Setting up NadekoBot on Linux

Table of Contents
Linux From Source
Source Update Instructions
Linux Release
Release Update Instructions
Tmux (Preferred Method)
Systemd
Systemd + Script
Setting up Nadeko on a VPS (Digital Ocean)

Operating System Compatibility

It is recommended that you use Ubuntu 20.04, as there have been nearly no problems with it. Also, 32-bit systems are incompatible.

Compatible operating systems:
  • Ubuntu: 16.04, 18.04, 20.04, 21.04, 21.10 22.04
  • Mint: 19, 20
  • Debian: 9, 10
  • CentOS: 7
  • openSUSE
  • Fedora: 33, 34, 35

Linux From Source

Migration from v3 -> v4

Follow the following few steps only if you're migrating from v3. If not, skip to installation instructions.

Use the new installer script: cd ~ && wget -N https://gitlab.com/Kwoth/nadeko-bash-installer/-/raw/v4/linuxAIO.sh && bash linuxAIO.sh

  • Install prerequisites (type 1 and press enter)
  • Download (type 2 and press enter)
  • Run (type 3 and press enter)
  • Done
Installation Instructions

Open Terminal (if you're on an installation with a window manager) and navigate to the location where you want to install the bot (for example cd ~)

  1. Download and run the new installer script cd ~ && wget -N https://gitlab.com/Kwoth/nadeko-bash-installer/-/raw/v4/linuxAIO.sh && bash linuxAIO.sh
  2. Install prerequisites (type 1 and press enter)
  3. Download the bot (type 2 and press enter)
  4. Exit the installer (type 6 and press enter)
  5. Copy the creds.yml template cp nadekobot/output/creds_example.yml nadekobot/output/creds.yml
  6. Open nadekobot/output/creds.yml with your favorite text editor. We will use nano here
    • nano nadekobot/output/creds.yml
  7. Click here to follow creds guide
    • After you're done, you can close nano (and save the file) by inputting, in order
    • CTRL + X
    • Y
    • Enter
  8. Run the installer script again cd ~ && wget -N https://gitlab.com/Kwoth/nadeko-bash-installer/-/raw/v4/linuxAIO.sh && bash linuxAIO.sh
  9. Run the bot (type 3 and press enter)
Source Update Instructions
  1. ⚠ Stop the bot ⚠
  2. Update and run the new installer script cd ~ && wget -N https://gitlab.com/Kwoth/nadeko-bash-installer/-/raw/v4/linuxAIO.sh && bash linuxAIO.sh
  3. Update the bot (type 2 and press enter)
  4. Run the bot (type 3 and press enter)
  5. 🎉

⚠ IF YOU ARE FOLLOWING THE GUIDE ABOVE, IGNORE THIS SECTION ⚠

Linux Release

Prerequisites
  1. (Optional) Installing Redis
    • ubuntu installation command: sudo apt-get install redis-server
  2. Playing music requires ffmpeg, libopus, libsodium and youtube-dl (which in turn requires python3)
    • ubuntu installation command: sudo apt-get install ffmpeg libopus0 opus-tools libopus-dev libsodium-dev -y
  3. Make sure your python is version 3+ with python --version
    • if it's not, you can install python 3 and make it the default with: sudo apt-get install python3.8 python-is-python3

You can use nadeko bash script prerequisites installer as a reference

Installation Instructions
  1. Download the latest release from https://gitlab.com/Kwoth/nadekobot/-/releases
    • Look for the file called "X.XX.X-linux-x64-build.tar" (where X.XX.X is a series of numbers) and download it
  2. Untar it
    • ⚠ Make sure that you change X.XX.X to the same series of numbers as in step 1!
    • tar xf X.XX.X-linux-x64-build.tar
  3. Rename the nadekobot-linux-x64 to nadekobot
    • mv nadekobot-linux-x64 nadekobot
  4. Move into nadekobot directory and make NadekoBot executable
    • cd nadekobot && chmod +x NadekoBot
  5. Copy the creds.yml template
    • cp creds_example.yml creds.yml
  6. Open creds.yml with your favorite text editor. We will use nano here
    • nano nadekobot/output/creds.yml
  7. Click here to follow creds guide
    • After you're done, you can close nano (and save the file) by inputting, in order
    • CTRL + X
    • Y
    • Enter
  8. Run the bot
    • ./NadekoBot
Release Update Instructions
  1. Stop the bot
  2. Download the latest release from https://gitlab.com/Kwoth/nadekobot/-/releases
    • Look for the file called "x.x.x-linux-x64-build.tar" (where X.X.X is a version, for example 3.0.4) and download it
  3. Untar it
    • ⚠ Make sure that you change X.X.X to the same series of numbers as in step 2!
    • tar xf x.x.x-linux-x64-build.tar
  4. Rename the old nadekobot directory to nadekobot-old (remove your old backup first if you have one, or back it up under a different name)
    • rm -rf nadekobot-old 2>/dev/null
    • mv nadekobot nadekobot-old
  5. Rename the new nadekobot directory to nadekobot
    • mv nadekobot-linux-x64 nadekobot
  6. Remove old strings and aliases to avoid overwriting the updated versions of those files
    • ⚠ If you've modified said files, back them up instead
    • rm nadekobot-old/data/aliases.yml
    • rm -r nadekobot-old/data/strings
  7. Copy old data
    • cp -RT nadekobot-old/data/ nadekobot/data
  8. Copy creds.yml
    • cp nadekobot-old/creds.yml nadekobot/
  9. Move into nadekobot directory and make the NadekoBot executable
    • cd nadekobot && chmod +x NadekoBot
  10. Run the bot
    • ./NadekoBot

🎉 Enjoy

Steps 3 - 9 as a single command

Don't forget to change X.XX.X to match step 2. 

tar xf X.XX.X-linux-x64-build.tar && \
rm -rf nadekobot-old 2>/dev/null && \
mv nadekobot nadekobot-old && \
mv nadekobot-linux-x64 nadekobot && \
rm nadekobot-old/data/aliases.yml && \
rm -r nadekobot-old/data/strings && \
cp -RT nadekobot-old/data/ nadekobot/data && \
cp nadekobot-old/creds.yml nadekobot/ && \
cd nadekobot && chmod +x NadekoBot

Running Nadeko

While there are two run modes built into the installer, these options only run Nadeko within the current session. Below are 3 methods of running Nadeko as a background process.

Tmux Method (Preferred)

Using tmux is the simplest method, and is therefore recommended for most users.

Before proceeding, make sure your bot is not running by either running .die in your Discord server or exiting the process with Ctrl+C.

If you are presented with the installer main menu, exit it by choosing Option 8.

  1. Create a new session: tmux new -s nadeko

The above command will create a new session named nadeko (you can replace “nadeko” with anything you prefer, it's your session name).

  1. Navigate to the project's root directory
    • Project root directory location example: cd /home/user/nadekobot/
  2. Enter the output directory:
    • cd output
  3. Run the bot using:
    • dotnet NadekoBot.dll
  4. Detatch the tmux session:
    • Press Ctrl + B
    • Then press D Now check your Discord server, the bot should be online. Nadeko should now be running in the background of your system.

To re-open the tmux session to either update, restart, or whatever, execute tmux a -t nadeko. (Make sure to replace "nadeko" with your session name. If you didn't change it, leave it as it.)

Systemd

Compared to using tmux, this method requires a little bit more work to set up, but has the benefit of allowing Nadeko to automatically start back up after a system reboot or the execution of the .die command.

  1. Navigate to the project's root directory
    • Project root directory location example: /home/user/nadekobot/

  2. Use the following command to create a service that will be used to start Nadeko:

    echo "[Unit]
Description=NadekoBot service
After=network.target
StartLimitIntervalSec=60
StartLimitBurst=2

[Service]
Type=simple
User=$USER
WorkingDirectory=$PWD/output
# If you want Nadeko to be compiled prior to every startup, uncomment the lines
# below. Note  that it's not neccessary unless you are personally modifying the
# source code.
#ExecStartPre=/usr/bin/dotnet build ../src/NadekoBot/NadekoBot.csproj -c Release -o output/
ExecStart=/usr/bin/dotnet NadekoBot.dll
Restart=on-failure
RestartSec=5
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=NadekoBot

[Install]
WantedBy=multi-user.target" | sudo tee /etc/systemd/system/nadeko.service

  3. Make the new service available:

    • sudo systemctl daemon-reload
  4. Start Nadeko:
    • sudo systemctl start nadeko.service && sudo systemctl enable nadeko.service

Systemd + Script

This method is similar to the one above, but requires one extra step, with the added benefit of better error logging and control over what happens before and after the startup of Nadeko.

  1. Locate the project and move to its parent directory
    • Project location example: /home/user/nadekobot/
    • Parent directory example: /home/user/

  2. Use the following command to create a service that will be used to execute NadekoRun.sh:

    echo "[Unit]
Description=NadekoBot service
After=network.target
StartLimitIntervalSec=60
StartLimitBurst=2

[Service]
Type=simple
User=$USER
WorkingDirectory=$_WORKING_DIR
ExecStart=/bin/bash NadekoRun.sh
Restart=on-failure
RestartSec=5
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=NadekoBot

[Install]
WantedBy=multi-user.target" | sudo tee /etc/systemd/system/nadeko.service

  3. Make the new service available:

    • sudo systemctl daemon-reload

  4. Use the following command to create a script that will be used to start Nadeko:

    {
echo '#!/bin/bash'
echo ""
echo "echo \"Running NadekoBot in the background with auto restart\"
youtube-dl -U

# If you want Nadeko to be compiled prior to every startup, uncomment the lines
# below. Note  that it's not necessary unless you are personally modifying the
# source code.
#echo \"Compiling NadekoBot...\"
#cd \"$PWD\"/nadekobot
#dotnet build src/NadekoBot/NadekoBot.csproj -c Release -o output/

echo \"Starting NadekoBot...\"

while true; do
    if [[ -d $PWD/nadekobot/output ]]; then
        cd $PWD/nadekobot/output || {
            echo \"Failed to change working directory to $PWD/nadekobot/output\" >&2
            echo \"Ensure that the working directory inside of '/etc/systemd/system/nadeko.service' is correct\"
            echo \"Exiting...\"
            exit 1
        }
    else
        echo \"$PWD/nadekobot/output doesn't exist\"
        exit 1
    fi

    dotnet NadekoBot.dll || {
        echo \"An error occurred when trying to start NadekBot\"
        echo \"Exiting...\"
        exit 1
    }

    echo \"Waiting for 5 seconds...\"
    sleep 5
    youtube-dl -U
    echo \"Restarting NadekoBot...\"
done

echo \"Stopping NadekoBot...\""
} > NadekoRun.sh

  5. Start Nadeko:

    • sudo systemctl start nadeko.service && sudo systemctl enable nadeko.service

Setting up Nadeko on a Linux VPS (Digital Ocean Droplet)

If you want Nadeko to play music for you 24/7 without having to hosting it on your PC and want to keep it cheap, reliable and convenient as possible, you can try Nadeko on Linux Digital Ocean Droplet using the link DigitalOcean (by using this link, you will get $10 credit and also support Nadeko)

Setting up NadekoBot Assuming you have followed the link above to setup an account and a Droplet with a 64-bit operational system on Digital Ocean and got the IP address and root password (in your e-mail) to login, it's time to get started.

This section is only relevant to those who want to host Nadeko on DigitalOcean. Go through this whole section before setting the bot up.

Prerequisites

Starting up

  • Open PuTTY and paste or enter your IP address and then click Open.
    If you entered your Droplets IP address correctly, it should show login as: in a newly opened window.
  • Now for login as:, type root and press enter.
  • It should then ask for a password. Type the root password you have received in your e-mail address, then press Enter.

If you are running your droplet for the first time, it will most likely ask you to change your root password. To do that, copy the password you've received by e-mail and paste it on PuTTY.

  • To paste, just right-click the window (it won't show any changes on the screen), then press Enter.
  • Type a new password somewhere, copy and paste it on PuTTY. Press Enter then paste it again.

Save the new password somewhere safe.

After that, your droplet should be ready for use. Follow the guide from the beginning to set Nadeko up on your newly created VPS.

Last update: July 30, 2022