deployment/stacks/paper/Dockerfile

51 lines
1.5 KiB
Docker

ARG BASE_IMAGE
# We use ${:-} instead of a default value because the argument is always passed
# to the build, it'll just be blank most likely
FROM ${BASE_IMAGE:-'openjdk:17-slim'}
# Build arguments
ARG MC_VERSION
ARG PAPERMC_VERSION
# Install mcstatus for healthchecks
RUN apt update && \
apt install --no-install-recommends -y python3-minimal python3-setuptools python3-pip && \
python3 -m pip install mcstatus && \
apt --purge remove -y python3-pip python3-setuptools && \
apt clean && \
groupadd -g 1000 paper && \
useradd -rMg paper -u 1000 paper
# Create worlds and config directory
WORKDIR /app
RUN mkdir -p worlds config/cache
# Download server file
ADD "https://papermc.io/api/v2/projects/paper/versions/$MC_VERSION/builds/$PAPERMC_VERSION/downloads/paper-$MC_VERSION-$PAPERMC_VERSION.jar" server.jar
# Make sure the server user can access all necessary folders
RUN chown -R paper:paper /app
# Store the cache in an anonymous volume, which means it won't get stored in the other volumes
VOLUME /app/config/cache
# Default value to keep users from eating up all ram accidentally
ENV XMX=4
ENV MC_VERSION="${MC_VERSION}"
ENV PAPERMC_VERSION="${PAPERMC_VERSION}"
# Document exposed ports
EXPOSE 25565
# Switch to non-root user
USER paper:paper
# Entrypoint runs in /app/config
COPY entrypoint.sh /entrypoint.sh
WORKDIR /app/config
ENTRYPOINT /entrypoint.sh
HEALTHCHECK --interval=30s --timeout=5s --start-period=1m --retries=5 \
CMD mcstatus localhost:25565 ping