Switch to paper

Run as non-priviledged user
Fix Restore and Backup

Backup.ps1

@@ -24,6 +24,8 @@ $itemsToBackup = @(
     "/minecraft/spigot.yml",
     "/minecraft/usercache.json",
     "/minecraft/whitelist.json",
+    "/minecraft/version_history.json",
+    "/minecraft/config",
     "/minecraft/world",
     "/minecraft/world_nether",
     "/minecraft/world_the_end"
@@ -33,7 +35,7 @@ foreach ($item in $itemsToBackup) {
     $itemName = [System.IO.Path]::GetFileName($item)
     $destination = "$backupDir/$itemName"
     Write-Host "Backing up $item to $destination"
-    if ($item -like "*/world*" -or $item -eq "/minecraft/world" -or $item -eq "/minecraft/world_nether" -or $item -eq "/minecraft/world_the_end") {
+    if ($item -like "*/world*" -or $item -like "*/config*") {
         Write-Host "Backing up directory $item"
         docker cp "$($containerName):$($item)" "$($backupDir)/"
     } else {

Build.ps1

@@ -1,5 +1,5 @@
 $containerName = "minecraft-server"
-$imageName = "minecraft-spigot:latest"
+$imageName = "minecraft-paper:latest"
 
 $container = docker ps -a --filter "name=$containerName" --format "{{.ID}}"
 if ($container) {

Dockerfile

@@ -1,31 +1,25 @@
 FROM ubuntu:latest AS builder
 
-# Install Spigot dependencies
-# This installs normal dependencies, sets up zulu apt repository and installs zulu21-jdk
+# Install Paper dependencies
 RUN apt-get update && apt-get install -y \
     curl \
-    git \
     wget \
+    jq \
     bash \
     gnupg \
     ca-certificates \
-    && curl -s https://repos.azul.com/azul-repo.key | gpg --dearmor -o /usr/share/keyrings/azul.gpg \
-    && echo "deb [signed-by=/usr/share/keyrings/azul.gpg] https://repos.azul.com/zulu/deb stable main" | tee /etc/apt/sources.list.d/zulu.list \
-    && apt-get update && apt-get install -y zulu21-jdk
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /minecraft
 
-# Setup spigot.jar
-# This downloads BuildTools.jar and uses that to build a new spigot.jar
-RUN mkdir buildtools \
-    && cd buildtools \
-    && wget https://hub.spigotmc.org/jenkins/job/BuildTools/lastSuccessfulBuild/artifact/target/BuildTools.jar \
-    && java -jar BuildTools.jar --rev latest \
-    && mv spigot-*.jar /minecraft/spigot.jar \
-    && rm -rf /minecraft/buildtools
+# Fetch the latest PaperMC version and build dynamically
+RUN PAPER_VERSION=$(curl -s https://papermc.io/api/v2/projects/paper | jq -r '.versions[-1]') \
+    && PAPER_BUILD=$(curl -s https://papermc.io/api/v2/projects/paper/versions/$PAPER_VERSION | jq -r '.builds[-1]') \
+    && wget -O paper.jar https://papermc.io/api/v2/projects/paper/versions/$PAPER_VERSION/builds/$PAPER_BUILD/downloads/paper-$PAPER_VERSION-$PAPER_BUILD.jar
 
 # Accept EULA
-RUN echo "eula=true" > /minecraft/eula.txt
+RUN echo "eula=true" > eula.txt
 
 FROM alpine:latest AS runner
 
@@ -33,9 +27,17 @@ COPY --from=builder /minecraft /minecraft
 
 RUN apk add --no-cache openjdk21-jre eudev
 
+RUN addgroup -S mcgroup && adduser -S mcuser -G mcgroup -s /bin/sh \ 
+    && chown -R mcuser:mcgroup /minecraft \
+    && chmod g+s /minecraft
+
 WORKDIR /minecraft
 
-# Move spigot to server directory
 EXPOSE 25565
 
-CMD /bin/sh -c "java -Xmx2G -Xms512M -jar /minecraft/spigot.jar nogui > /minecraft/logs/output.log 2> /minecraft/logs/error.log"
+CMD /bin/sh -c ' \
+    echo Fixing ownership of minecraft directory... && \
+    chown -R mcuser:mcgroup /minecraft && \
+    echo Starting minecraft server as mcuser && \
+    su - mcuser -c "cd /minecraft/ && java -Xmx2G -Xms512M -jar /minecraft/paper.jar nogui" && \
+    sleep 1727313' > /minecraft/logs/stdout.log 2> /minecraft/logs/stderr.log

Restore.ps1

@@ -32,6 +32,8 @@ $itemsToRestore = @(
     "spigot.yml",
     "usercache.json",
     "whitelist.json",
+    "version_history.json",
+    "config",
     "world",
     "world_nether",
     "world_the_end"

Start.ps1

@@ -1,5 +1,5 @@
 $containerName = "minecraft-server"
-$imageName = "minecraft-spigot:latest"
+$imageName = "minecraft-paper:latest"
 
 $container = docker ps -a --filter "name=$containerName" --format "{{.ID}}"
 if ($container) {
@@ -17,7 +17,7 @@ if ($container) {
         -v "$(pwd)/plugins:/minecraft/plugins" `
         -v "$(pwd)/logs:/minecraft/logs" `
         --restart unless-stopped `
-        minecraft-spigot
+        minecraft-paper
 
     Write-Host "Starting the container '$containerName'..."
     docker start $containerName