Dockerfile

FROM ubuntu:22.04

# Set environment variables to prevent interactive prompts during installation
ENV DEBIAN_FRONTEND=noninteractive

# Install basic dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    wget \
    iptables \
    iproute2 \
    net-tools \
    iputils-ping \
    dnsutils \
    gnupg \
    lsb-release \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Add PostgreSQL official APT repository
RUN wget -qO- https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmor -o /etc/apt/trusted.gpg.d/pgdg.gpg && \
    echo "deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list

# Install PostgreSQL and VPN tools
RUN apt-get update && apt-get install -y --no-install-recommends \
    postgresql-15 \
    postgresql-client-15 \
    postgresql-contrib-15 \
    shadowsocks-libev \
    proxychains4 \
    && rm -rf /var/lib/apt/lists/*

# Create entrypoint script
COPY docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

# Set entrypoint
ENTRYPOINT ["/usr/local/bin/docker-entrypoint.sh"]