Waterfall ❌ Velocity ✅

siverten/velocity/Dockerfile

@@ -0,0 +1,35 @@
+ARG VELOCITY_VERSION=latest
+ARG JAVA_VERSION=21
+
+FROM alpine AS tools
+RUN apk add --update-cache --no-cache \
+        curl \
+        jq
+
+FROM tools AS waterfall
+RUN if test -z "${VELOCITY_VERSION}" || test "${VELOCITY_VERSION}" == "latest"; then \
+        echo "### Fetching latest version"; \
+        WATERFALL_VERSION=$(\
+            curl -sl https://fill.papermc.io/v3/projects/velocity | \
+            jq -r '.versions["3.0.0"][0]' \
+        ); \
+    fi && \
+    echo "### Using version <${VELOCITY_VERSION}>" && \
+    DOWNLOAD_URL=$(\
+        curl -sl "https://fill.papermc.io/v3/projects/velocity/versions/${WATERFALL_VERSION}/builds" | \
+        jq -r 'first(.[] | select(.channel == "STABLE") | .downloads."server:default".url) // "null"' \
+    ) && \
+    echo "### Downloading <${DOWNLOAD_URL}>" && \
+    curl -lfso velocity.jar "${DOWNLOAD_URL}"
+
+FROM eclipse-temurin:${JAVA_VERSION}
+RUN useradd --create-home --shell /bin/bash minecraft \
+ && mkdir -p /opt/velocity /velocity \
+ && chown -R minecraft /velocity/
+COPY --from=waterfall /velocity.jar /opt/velocity/
+USER minecraft
+WORKDIR /velocity
+VOLUME /velocity
+EXPOSE 25565
+ENV JAVA_MEM=1G
+CMD java -Xms${JAVA_MEM} -Xmx${JAVA_MEM} -jar /opt/velocity/velocity.jar