.

images/velocity/Containerfile

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+FROM docker.io/eclipse-temurin:25-jre-alpine
+EXPOSE 25565
+
+ENV VELOCITY_VERSION="4.1.0-SNAPSHOT"
+
+VOLUME /mnt
+COPY --chmod=755 entrypoint.sh /entrypoint.sh
+WORKDIR /data
+
+RUN apk add --no-cache curl jq
+RUN curl -s "https://fill.papermc.io/v3/projects/velocity/versions/$VELOCITY_VERSION/builds/latest" \
+  | jq -r '.downloads."server:default".url' \
+  | xargs curl -o server.jar
+
+ENTRYPOINT ["/entrypoint.sh"]
+CMD ["java", "-jar", "server.jar"]

images/velocity/Makefile

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+include ../container.mk
+TAG := velocity
+VERSION := 0.1

images/velocity/README

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+This is the papermc image, base of all other minecraft instances.
+
+The server is initialized at build time to reduce startup time.

images/velocity/entrypoint.sh

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+#!/bin/sh
+set -ex
+
+cd /data
+cp -rf /mnt/* . || true
+exec "$@"