Host a Terraria - tMod Loader Dedicated Server

# Update system and install Docker
sudo apt update && sudo apt install -y docker.io
sudo systemctl enable --now docker

# Create game server directory
sudo mkdir -p /opt/gameserver

# Server configuration
export MAX_PLAYERS="8"
export SERVER_MOTD="Welcome to tModLoader!"
export WORLD_NAME="world"
export WORLD_SIZE="1"
export DIFFICULTY="0"
export NPCSTREAM="60"
export TMODLOADER_VERSION="latest"
export LANGUAGE="1"

# Pull the container image
docker pull ghcr.io/ptero-eggs/yolks:dotnet_8

#!/bin/bash
# tModLoader Installation Script
#
# Server Files: /opt/gameserver
apt update
apt install -y file curl jq unzip

## get release info and download links
LATEST_JSON=$(curl --silent "https://api.github.com/repos/tmodloader/tmodloader/releases" | jq -c '.[]' | head -1)
RELEASES=$(curl --silent "https://api.github.com/repos/tmodloader/tmodloader/releases" | jq '.[]')

if [ -z "$TMODLOADER_VERSION" ] || [ "$TMODLOADER_VERSION" == "latest" ]; then
    echo -e "Defaulting to latest release"
    DOWNLOAD_LINK=$(echo $LATEST_JSON | jq .assets | jq -r .[].browser_download_url | grep -i tmodloader.zip)
else
    VERSION_CHECK=$(echo $RELEASES | jq -r --arg VERSION "$TMODLOADER_VERSION" '. | select(.tag_name==$VERSION) | .tag_name')
    if [ "$TMODLOADER_VERSION" == "$VERSION_CHECK" ]; then
        DOWNLOAD_LINK=$(echo $RELEASES | jq -r --arg VERSION "$TMODLOADER_VERSION" '. | select(.tag_name==$VERSION) | .assets[].browser_download_url' | grep -i tmodloader.zip)
    else
        echo -e "Version not found, defaulting to latest release"
        DOWNLOAD_LINK=$(echo $LATEST_JSON | jq .assets | jq -r .[].browser_download_url | grep -i tmodloader.zip)
    fi
fi

mkdir -p /opt/gameserver
cd /opt/gameserver || exit 5

## download release
echo -e "Downloading: ${DOWNLOAD_LINK}"
curl -sSL ${DOWNLOAD_LINK} -o ${DOWNLOAD_LINK##*/}

FILETYPE=$(file -F ',' ${DOWNLOAD_LINK##*/} | cut -d',' -f2 | cut -d' ' -f2)
if [ "$FILETYPE" == "gzip" ]; then
    tar xzvf ${DOWNLOAD_LINK##*/}
elif [ "$FILETYPE" == "Zip" ]; then
    unzip -o ${DOWNLOAD_LINK##*/}
else
    echo -e "Unknown filetype. Exiting"
    exit 2
fi

# Create startup wrapper script
echo 'dotnet tModLoader.dll -server "$@"' > tModLoaderServer
chmod +x tModLoaderServer

echo -e "Cleaning up extra files."
rm -rf ${DOWNLOAD_LINK##*/}
rm -rf DedicatedServerUtils LaunchUtils PlatformVariantLibs tModPorter RecentGitHubCommits.txt *.bat *.sh 2>/dev/null

# Set up config with difficulty setting (command-line param doesn't work for difficulty)
mv /opt/gameserver/serverconfig.txt /opt/gameserver/config.txt 2>/dev/null
if [ -f /opt/gameserver/config.txt ]; then
    sed 's/#difficulty/difficulty/' /opt/gameserver/config.txt > /opt/gameserver/serverconfig.txt
    rm /opt/gameserver/config.txt
fi

# Create mod directories
mkdir -p /opt/gameserver/saves/Worlds
mkdir -p /opt/gameserver/mods

echo "-----------------------------------------"
echo "tModLoader installation completed."
echo "Place .tmod files in the mods/ directory."
echo "Use install.txt for Workshop mod IDs."
echo "Use enabled.json to enable/disable mods."
echo "-----------------------------------------"

sudo ufw allow 7777/tcp