NanoLimbo

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This is lightweight minecraft limbo server, written on Java with Netty. The main goal of the project is maximum simplicity with a minimum number of sent and processed packets. This limbo is empty, there are no ability to set schematic building since this is not necessary. You can send useful information in chat or BossBar. No plugins, no logs. The server is fully clear. It only able keep a lot of players while the main server is down.

Contributors:
danielb@purpleflaghosting.com bad@is-having.fun
README

NanoLimbo

A lightweight minecraft limbo server, written on Java with Netty. The main goal of the project is maximum simplicity with a minimum number of sent and processed packets. This limbo is empty, there are no ability to set schematic building since this is not necessary. You can send useful information in chat or BossBar. No plugins, no logs. The server is fully clear. It only able keep a lot of players while the main server is down.

NanoLimbo Github

Server Ports

The nanolimbo server requires a single port for access (default 25565).

Port default
Game 25565
Docker Images (1)
Name Image
ghcr.io/ptero-eggs/yolks:java_8 ghcr.io/ptero-eggs/yolks:java_8
Startup Command 
java -Xms128M -Xmx{{SERVER_MEMORY}}M -jar {{SERVER_JARFILE}}
Variables (3)

Server jar File

The name of the server jarfile to run the server with.

Environment:
SERVER_JARFILE
Default:
server.jar
User Viewable:
❌
User Editable:
❌
Rules:
required|regex:/^([\w\d._-]+)(\.jar)$/

Download URL

A URL to use to download. This is optional! Let this field empty for the latest version.

Environment:
DOWNLOAD_URL
Default:
None
User Viewable:
❌
User Editable:
❌
Rules:
nullable|string

Version

The version of NanoLimbo to download. Use "latest" for latest.

Environment:
VERSION
Default:
latest
User Viewable:
❌
User Editable:
❌
Rules:
required|string|max:20
Installation Script
Container: ghcr.io/ptero-eggs/installers:debian
Entrypoint: bash
#!/bin/bash
# NanoLimbo Installation Script
#
# Server Files: /mnt/server

apt update
apt install -y curl jq git openssl bash bc apt-transport-https gnupg software-properties-common

if [ -z "${DOWNLOAD_URL}" ]; then
    GITHUB_PACKAGE="Nan1t/NanoLimbo"
    MATCH="NanoLimbo-"

    ## get release info and download links
    LATEST_JSON=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases/latest")
    RELEASES=$(curl --silent "https://api.github.com/repos/${GITHUB_PACKAGE}/releases")
    
    if [ -z "${VERSION}" ] || [ "${VERSION}" == "latest" ]; then
        DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url | grep -i ${MATCH})
    else
        VERSION_CHECK=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .tag_name')
        if [ "${VERSION}" == "${VERSION_CHECK}" ]; then
            DOWNLOAD_URL=$(echo ${RELEASES} | jq -r --arg VERSION "${VERSION}" '.[] | select(.tag_name==$VERSION) | .assets[].browser_download_url' | grep -i ${MATCH})
        else
            echo -e "defaulting to latest release"
            DOWNLOAD_URL=$(echo ${LATEST_JSON} | jq .assets | jq -r .[].browser_download_url)
        fi
    fi
else
    if curl --output /dev/null --silent --head --fail ${DOWNLOAD_URL}.jar; then
        echo -e "Provided download link is valid. Proceeding to download"
    else
        echo -e "Provided download link is invalid. Exiting now"
        exit 2
    fi
fi

cd /mnt/server

echo "Downloading server file..."
echo -e "performing curl -sSL ${DOWNLOAD_URL}"
curl -sSL -o ${SERVER_JARFILE} ${DOWNLOAD_URL}

if [ ! -f "settings.yml" ]; then
echo "Creating settings file..."
curl -sSL -o settings.yml https://raw.githubusercontent.com/ptero-eggs/game-eggs/main/minecraft/java/nanolimbo/settings.yml
fi

## install end
echo "-----------------------------------------"
echo "Installation completed..."
echo "-----------------------------------------"