Dockerfile

# Base image with JDK 21
FROM openjdk:21-jdk-slim

# Install all required packages including unzip
RUN apt-get update && \
    apt-get install -y \
    python3 \
    python3-pip \
    git \
    curl \
    wget \
    unzip \
    && rm -rf /var/lib/apt/lists/*

# Set Python3 as default
RUN ln -s /usr/bin/python3 /usr/bin/python

# Install Gradle
ENV GRADLE_VERSION=8.5
RUN wget -q https://services.gradle.org/distributions/gradle-${GRADLE_VERSION}-bin.zip && \
    unzip -q gradle-${GRADLE_VERSION}-bin.zip && \
    mv gradle-${GRADLE_VERSION} /opt/gradle && \
    rm gradle-${GRADLE_VERSION}-bin.zip

# Add Gradle to PATH
ENV PATH=$PATH:/opt/gradle/bin

WORKDIR /app

# Clone coral-server repository
RUN git clone https://github.com/Coral-Protocol/coral-server.git /app/coral-server

# Try to build coral-server (allow failure)
WORKDIR /app/coral-server
RUN gradle build -x test || echo "Build failed, will retry at runtime"

# Check for JAR file
RUN if [ -f build/libs/*.jar ]; then \
        cp build/libs/*.jar /app/coral-server.jar; \
    else \
        echo "JAR not found, will use gradle run"; \
    fi

WORKDIR /app

# Install Python dependencies
RUN pip3 install --no-cache-dir \
    requests \
    psutil

# Copy Python wrapper
COPY coral_wrapper.py /app/

# Create config directory
RUN mkdir -p /config

# Expose port
EXPOSE 5555

# Environment variables
ENV JAVA_HOME=/usr/local/openjdk-21
ENV CORAL_PORT=5555

# Run Python wrapper
CMD ["python", "coral_wrapper.py"]