# Copyright Epic Games, Inc. All Rights Reserved.
#
# Runtime image for zenserver compute workers.
#
# Build variants:
#   With Wine (for running Windows worker executables via WineProcessRunner):
#     docker build -t zenserver-compute -f docker/Dockerfile .
#
#   Without Wine (Linux-only workers, smaller image):
#     docker build -t zenserver-compute --build-arg INSTALL_WINE=false -f docker/Dockerfile .
#
# The build context must contain the pre-built Linux zenserver binary at:
#   build/linux/x86_64/release/zenserver

FROM ubuntu:24.04

# Avoid interactive prompts during package installation
ENV DEBIAN_FRONTEND=noninteractive

# Set to "false" to skip Wine installation and produce a smaller image
ARG INSTALL_WINE=true

# Install WineHQ (only when INSTALL_WINE=true)
# Enables i386 architecture required for Wine32 support
RUN if [ "$INSTALL_WINE" = "true" ]; then \
        dpkg --add-architecture i386 \
        && apt-get update \
        && apt-get install -y --no-install-recommends \
            ca-certificates \
            gnupg \
            wget \
        && wget -qO- https://dl.winehq.org/wine-builds/winehq.key \
            | gpg --dearmor -o /usr/share/keyrings/winehq-archive.key \
        && echo "deb [signed-by=/usr/share/keyrings/winehq-archive.key] https://dl.winehq.org/wine-builds/ubuntu/ noble main" \
            > /etc/apt/sources.list.d/winehq.list \
        && apt-get update \
        && apt-get install -y --no-install-recommends winehq-stable \
        && apt-get remove -y gnupg wget \
        && apt-get autoremove -y \
        && rm -rf /var/lib/apt/lists/* ; \
    fi

# Copy the pre-built zenserver binary
COPY build/linux/x86_64/release/zenserver /opt/zenserver/zenserver
RUN chmod +x /opt/zenserver/zenserver

# Optional: Windows zenserver binary for Wine-based compute workers.
# Set WIN_BINARY_DIR to a directory containing zenserver.exe to include it.
# Defaults to docker/empty (an empty placeholder) so the COPY is a no-op.
ARG WIN_BINARY_DIR=docker/empty
COPY ${WIN_BINARY_DIR}/ /opt/zenserver/

EXPOSE 8558

ENTRYPOINT ["/opt/zenserver/zenserver"]