Legendary Java Minecraft + Geyser + Floodgate + Purpur Dedicated Server for Docker

This is the Docker containerized version of my Minecraft Java Paper Dedicated Server for Linux/Raspberry Pi scripts but with Geyser and Floodgate included.

Geyser and Floodgate allow Minecraft Bedrock players to join your Java server!

My main blog article (and the best place for support) is here.
The Paper version with Floodgate and Geyser is here.
The Paper version without Floodgate and Geyser is here.
The official GitHub repository is located here.
The official Docker Hub repository is located here.

The Bedrock version of the Docker container is available here. This is for Java Minecraft but Bedrock players can connect to it.

Features

Sets up fully operational Minecraft server that allows both Java and Bedrock clients to connect
Runs the highly efficient "Purpur" Minecraft server
Runs Geyser to allow Bedrock clients to connect and Floodgate to allow them to authenticate with their Bedrock credentials to a Java server
Uses named Docker volume for safe and easy to access storage of server data files (which enables more advanced Docker features such as automatic volume backups)
Plugin support for Purpur + Paper + Spigot + Bukkit
Installs and configures OpenJDK 18
Automatic backups to minecraft/backups when server restarts
Updates automatically to the latest version when server is started
Runs on all Docker platforms and architectures including ARM / Raspberry Pi

Usage

First you must create a named Docker volume. This can be done with:

docker volume create yourvolumename

Now you may launch the server and open the ports necessary with one of the following Docker launch commands:

With default ports:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

With custom ports (this example uses 12345 for the Java port and 54321 for the Bedrock port):

docker run -it -v yourvolumename:/minecraft -p 12345:12345 -e Port=12345 -p 54321:54321/udp -p 54321:54321 -e BedrockPort=54321 --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

With a custom Minecraft version (add -e Version=1.X.X, must be present on Purpur's API servers to work):

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e Version=1.17.1 --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

With a maximum memory limit in megabytes (optional, prevents crashes on platforms with limited memory, -e MaxMemory=2048):

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e MaxMemory=2048 --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

Using a different timezone:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e TZ="America/Denver" --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

Skipping backups on certain folders (separate with comma):

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e NoBackup="plugins/ftp,plugins/test2" --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

Skipping permissions check:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e NoPermCheck="Y" --restart unless-stopped 05jchambers/legendary-minecraft-purpur-geyser:latest

Configuration / Accessing Server Files

The server data is stored where Docker stores your volumes. This is typically a folder on the host OS that is shared and mounted with the container.
You can find your exact path by typing:

docker volume inspect yourvolumename

This will give you the fully qualified path to your volume like this:

{
        "CreatedAt": "2022-05-09T21:08:34-06:00",
        "Driver": "local",
        "Labels": {},
        "Mountpoint": "/var/lib/docker/volumes/yourvolumename/_data",
        "Name": "yourvolumename",
        "Options": {},
        "Scope": "local"
    }

On Linux it's typically available at:

/var/lib/docker/volumes/yourvolumename/_data

On Windows it's at

C:\ProgramData\DockerDesktop

but may be located at something more like

\wsl$\docker-desktop-data\version-pack-data\community\docker\volumes\

if you are using WSL (Windows Subsystem for Linux

On Mac it's typically

~/Library/Containers/com.docker.docker/Data/vms/0/

If you are using Docker Desktop on Mac then you need to access the Docker VM with the following command first:

screen ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/tty

You can then normally access the Docker volumes using the path you found in the first step with docker volume inspect

Most people will want to edit server.properties. You can make the changes to the file and then restart the container to make them effective.

Backups are stored in the "backups" folder

The Geyser configuration is located in plugins/Geyser-Spigot/config.yml
The Floodgate configuration is located in plugins/floodgate/config.yml

TZ (timezone) Environment Variable

You can change the timezone from the default "America/Denver" to own timezone using this environment variable:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e TZ="America/Denver" 05jchambers/legendary-minecraft-purpur-geyser:latest

A list of Linux timezones is available here

BackupCount Environment Variable

By default the server keeps 10 rolling backups that occur each time the container restarts. You can override this using the BackupCount environment variable:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e BackupCount=20 05jchambers/legendary-minecraft-purpur-geyser:latest

QuietCurl Environment Variable

You can use the QuietCurl environment variable to suppress curl's download output. This will keep your logs tidier but may make it harder to diagnose if something is going wrong. If things are working well it's safe to enable this option and turn it back off so you can see the output if you need to:

docker run -it -v yourvolumename:/minecraft -p 25565:25565 -p 19132:19132/udp -p 19132:19132 -e QuietCurl=Y 05jchambers/legendary-minecraft-purpur-geyser:latest

Plugins

This is a "Purpur" Minecraft server which has plugin compatibility with Purpur / Paper / Spigot / Bukkit.

Installation is simple. There is a "plugins" folder on your Docker named volume.

Navigate to your server files on your host operating system (see accessing server files section if you don't know where this is) and you will see the "plugins" folder.

You just need to drop the extracted version of the plugin (a .jar file) into this folder and restart the container. That's it!

Some plugins have dependencies so make sure you read the installation guide first for the plugin you are looking at.
A popular place to get plugins is: https://dev.bukkit.org/bukkit-plugins

Troubleshooting Note - Oracle Virtual Machines

A very common problem people have with the Oracle Virtual Machine tutorials out there that typically show you how to use a free VM is that the VM is much more difficult to configure than just about any other product / offering out there.
The symptom you will have is that nobody will be able to connect.
It is because there are several steps you need to take to open the ports on the Oracle VM. You need to both:

Set the ingress ports (TCP/UDP) in the Virtual Cloud Network (VCN) security list
*and* set the ingress ports in a Network Security Group assigned to your instance

Both of these settings are typically required before you will be able to connect to your VM instance. This is purely configuration related and has nothing to do with the script or the Minecraft server itself.

I do not recommend this platform due to the configuration difficulty but the people who have gone through the pain of configuring an Oracle VM have had good experiences with it after that point. Just keep in mind it's going to be a rough ride through the configuration for most people.

Here are some additional links:

Troubleshooting Note - Hyper-V

There is a weird bug in Hyper-V that breaks UDP connections on the Minecraft server. There are two fixes for this. The simplest fix is that you have to use a Generation 1 VM with the Legacy LAN network driver.
See the following links:

There is a second fix that was shared by bpsimons here.
You need to install ethtool first with sudo apt install ethtool. Next in your /etc/network/interfaces file add "offload-tx off" to the bottom as the issue appears to be with TX offloading.
Here's an example:

# The primary network interface
auto eth0
iface eth0 inet static
address 192.168.1.5
netmask 255.255.255.0
network 192.168.1.0
broadcast 192.168.1.255
gateway 192.168.1.1
offload-tx off

This can also be done non-persistently with the following ethtool command:

ethtool -K eth0 tx off

Buy A Coffee / Donate

People have expressed some interest in this (you are all saints, thank you, truly)

PayPal: 05jchambers@gmail.com
Venmo: @JamesAChambers
CashApp: $theremote
Bitcoin (BTC): 3H6wkPnL1Kvne7dJQS8h7wB4vndB9KxZP7

Update History

June 29th 2024

Updated default Purpur version to 1.21

May 19th 2024

Updated OpenJDK version to 21
Updated default Purpur version to 1.20.6

April 27th 2024

Updated default Purpur version to 1.20.5

December 13th 2023

Updated default Purpur version to 1.20.4

November 26th 2023

Fix Geyser and Spigot updates after they stopped using Jenkins (downloads every server start, no MD5 anymore unfortunately to check for updates with)

October 1st 2023

Updated default Purpur version to 1.20.2

June 9th 2023

Updated default Purpur version to 1.20

April 18th 2023

Add NoViaVersion environment variable to disable using ViaVersion in case of incompatible plugins

March 18th 2023

Upgrade to Purpur 1.19.4

March 15th 2023

Add ViaVersion plugin to allow players on newer clients to connect to the server (very helpful when waiting for new updates to be released)
Fix Geyser and Floodgate update checks

January 25th 2023

Removed check for terminal and will let the Minecraft server throw an error if environment is not appropriate

January 14th 2023

Change connectivity test from google.com to Purpur site as google.com is blocked in some countries

January 12th 2023

Remove broken ScheduleRestart environment variable -- this needs to be done in your OS using docker restart (typically with crontab in Linux or Task Scheduler in Windows)

December 9th 2022

Update to Purpur 1.19.3 (make sure you have backups)

November 19th 2022

Add "QuietCurl" environment variable which will suppress the progress meter on curl keeping the logs much tidier
Remove fixpermissions.sh and add 3 lines into main start.sh file

November 7th 2022

Fail immediately if ran without an interactive terminal (as the Minecraft server won't work without one)

October 30th 2022

Add RISC architecture support
Switch from ubuntu:latest to ubuntu:rolling
Switch from using Adoptium to using ubuntu:rolling OpenJDK
Removed SetupMinecraft.sh
Fix bug with new ScheduleRestart environment variable

October 21st 2022

Added new environment variable "BackupCount" to control the number of backups the container keeps
NoBackup optional environment variable can now be multiple paths to files to skip backups on separated by a comma. Example: plugins/test,plugins/test2

October 20th 2022

Added new environment variable "NoBackup" to skip a folder from backup activities
Added new environment variable "NoPermCheck" to skip permissions check during startup
Added new environment variable "ScheduleRestart" -- this schedules the container to shut down at a certain time which combined with the --restart switch gives daily reboot functionality

October 8th 2022

Upgrade to OpenJDK 19

September 27th 2022

Fix SIGTERM catching in certain situations by running java with the "exec" command which passes execution completely to that process (thanks vp-en, Issue #3)
Removed screen application

September 20th 2022

Fix Geyser update link (thanks vp-en, PR #2)
Update to OpenJDK 18.0.2.1

September 2nd 2022

Initial release

TheRemote/Legendary-Minecraft-Purpur-Geyser