minecraft/Dockerfile

FROM openjdk:16-alpine as builder

RUN apk --no-cache add \
    patch \
    maven \
    git

RUN git config --global user.email "papermcbuilder@vanwa.ch"
RUN git config --global user.name "Vanwa papermc builder"

ENV VERSION=f521a18a17f32997793b2d0b2ebcd7890f200fc8
RUN git clone https://github.com/PaperMC/Paper.git

WORKDIR /Paper
RUN git checkout "$VERSION"
RUN ./gradlew applyPatches
RUN ./gradlew build
RUN mv /Paper/Paper-Server/build/libs/Paper-Server-*-dev.jar /Paper/Paper-Server/build/libs/paper.jar

FROM thallian/confd-env:latest

COPY --from=builder /Paper/Paper-Server/build/libs/paper.jar /var/lib/minecraft/paper.jar

RUN apk add --no-cache \
    openssl

RUN apk add --no-cache --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing \
    openjdk16-jre-headless

RUN addgroup minecraft -g 2222
RUN adduser -u 2222 -h /var/lib/minecraft -D -G minecraft minecraft

RUN mkdir -p /etc/services.d/minecraft/

ADD /rootfs /

RUN chown -R minecraft:minecraft /var/lib/minecraft

VOLUME /var/lib/minecraft/world /var/lib/minecraft/world_nether /var/lib/minecraft/world_the_end /var/lib/minecraft/plugins

EXPOSE 25565