use latest paper version

Dockerfile

@@ -1,27 +1,26 @@
-FROM alpine:3.13 as builder
+FROM openjdk:11 as builder
 
-RUN apk --no-cache add \
-    openjdk8 \
-    git \
+RUN git config --global user.email "papermcbuilder@vanwa.ch"
+RUN git config --global user.name "Vanwa papermc builder"
+
+RUN apt update && apt install -y \
+    patch \
     maven
 
-ENV BUILDTOOLS_VERSION=abd1c566d8cd758bac3a9d67543b719d4b9ab673
-RUN git clone https://hub.spigotmc.org/stash/scm/spigot/buildtools.git
+ENV VERSION=0ea3083817707d792ebac246895455a0aa0d3425
+RUN git clone https://github.com/PaperMC/Paper.git
 
-WORKDIR /buildtools
-RUN git checkout "$BUILDTOOLS_VERSION"
-RUN mvn package
-
-ENV SPIGOT_VERSION=1.16.5
-RUN java -jar target/BuildTools.jar --rev "$SPIGOT_VERSION"
-RUN mv spigot-$SPIGOT_VERSION.jar spigot.jar
+WORKDIR /Paper
+RUN git checkout "$VERSION"
+RUN ./paper jar
+RUN mv /Paper/Paper-Server/target/paper-*.jar /Paper/Paper-Server/target/paper.jar
 
 FROM thallian/confd-env:latest
 
-COPY --from=builder /buildtools/spigot.jar /var/lib/minecraft/spigot.jar
+COPY --from=builder /Paper/Paper-Server/target/paper.jar /var/lib/minecraft/paper.jar
 
 RUN apk add --no-cache \
-    openjdk8 \
+    openjdk11-jre-headless \
     openssl
 
 RUN addgroup minecraft -g 2222

README.md

@@ -1,4 +1,4 @@
-A [Minecraft](https://minecraft.net) server running on [Spigot](https://www.spigotmc.org/).
+A [Minecraft](https://minecraft.net) server running on [Paper](https://papermc.io/).
 
 # Volumes
 - `/var/lib/minecraft/plugins`

rootfs/etc/services.d/minecraft/run

@@ -1,4 +1,4 @@
 #!/usr/bin/with-contenv sh
 
 cd /var/lib/minecraft
-exec s6-setuidgid minecraft java -Xms${MIN_RAM:-512M} -Xmx${MAX_RAM:-512M} -XX:+UseG1GC -jar /var/lib/minecraft/spigot.jar
+exec s6-setuidgid minecraft java -Xms${MIN_RAM:-512M} -Xmx${MAX_RAM:-512M} -XX:+UseG1GC -jar /var/lib/minecraft/paper.jar