minecraft/dockerfiles/Dockerfile.paper
2024-05-28 03:55:52 -04:00

121 lines
3.7 KiB
Docker

FROM "${JRE_IMAGE:-localhost/minecraft-jre}":"${JRE_TAG:-latest}"
# Minecraft version to download
ARG VERSION=latest
# Plugins prefix
ARG PREFIX="PLUGIN_"
# PaperMC base URL
ARG BASE_URL="https://api.papermc.io/v2/projects/paper/versions/${VERSION}"
# Consider turning bStats (https://bStats.org) on but I'm turning it off by
# default because it collects information
ARG BSTATS_ENABLED=false
# Download files
USER root
WORKDIR /app
# Download and verify sha256sum for PaperMC server.jar
RUN set -eux && \
# Grab latest version if not specified
if [ "$VERSION" = "latest" ]; then \
VERSION="$( \
curl -s https://api.papermc.io/v2/projects/paper | \
jq -r '.versions[-1]' \
)"; \
fi && \
# Get latest build for the specified version
BUILD="$( \
curl -s "$BASE_URL" \
| jq -r '.builds[-1]' \
)" && \
URL="${BASE_URL}/builds/${BUILD}/downloads/paper-${VERSION}-${BUILD}.jar" && \
curl -s -o /tmp/server.jar "$URL" && \
# Get SHA256 hash of server.jar and compare
SHA256="$(sha256sum /tmp/server.jar | awk '{print $1}')" && \
EXPECTED="$( \
curl -s "$BASE_URL/builds/$BUILD" \
| jq -r '.downloads.application.sha256' \
)" && \
if [ ! "$SHA256" = "$EXPECTED" ]; then \
echo "[ERROR]: SHA256=\"$SHA256\" expected \"$EXPECTED\""; \
exit 1; \
fi && \
mv /tmp/server.jar /app/server.jar
# Move into a directory just for storing plugins
WORKDIR /app/plugins
# Copy in plugins
COPY ../plugins.json /app/plugins
# Download defined plugins
RUN set -eux && \
# Download defined plugins and check against hash
tmp_downloads="$(mktemp -d)" && \
# Iterate over all plugins in plugins.json
jq -c '.plugins[]' plugins.json | while read -r PLUGIN; do \
# Set variables from plugins.json
name=$(echo "$PLUGIN" | jq -r '.name') && \
version=$(echo "$PLUGIN" | jq -r '.version') && \
# Interpolate instances of '${version}' in the URL
url=$(echo "$PLUGIN" | jq -r '.url' | sed "s/\${version}/$version/g") && \
hash=$(echo "$PLUGIN" | jq -r '.hash') && \
info=$(echo "$PLUGIN" | jq -r '.info_url') && \
# Extract hash type and value, e.g., `md5:6f5902ac237024bdd0c176cb93063dc4`
hash_type=$(echo "$hash" | cut -d':' -f1) && \
hash_value=$(echo "$hash" | cut -d':' -f2-) && \
# Download and compare the hash
tmp_file="${tmp_downloads}/${name}-${version}.jar" && \
curl -s -L "$url" -o "${tmp_file}" && \
case "$hash_type" in \
sha256) \
echo "${hash_value} $tmp_file" | sha256sum -c - || { \
echo "SHA256 hash mismatch for ${name}-${version}.jar"; \
rm -rf "$tmp_downloads"; \
exit 1; \
} \
;; \
md5) \
echo "${hash_value} $tmp_file" | md5sum -c - || { \
echo "MD5 hash mismatch for ${name}-${version}.jar"; \
rm -rf "$tmp_downloads"; \
exit 1; \
} \
;; \
*) \
echo "Unsupported hash type: ${hash_type}"; \
rm -rf "$tmp_downloads"; \
exit 1; \
;; \
esac && \
mv "$tmp_file" "${name}-${version}.jar"; \
done && \
rm -rf "$tmp_downloads" && \
chown minecraft:minecraft /app/plugins/
# Generate initial settings
USER minecraft
WORKDIR /app
RUN java -jar server.jar --initSettings --nogui && \
# Disable bStats by default
if [ "$BSTATS_ENABLED" = "false" ]; then \
mkdir -p /app/plugins/bStats/ && \
echo "enabled: false" > /app/plugins/bStats/config.yml; \
fi
# Back to root to copy the entrypoint in
USER root
COPY ../entrypoint.sh /usr/local/bin/entrypoint.sh
RUN chmod +x /usr/local/bin/entrypoint.sh
# Run app as minecraft user
USER minecraft
WORKDIR /app
# Expose port and run entrypoint script
EXPOSE 25565
ENTRYPOINT ["entrypoint.sh"]