Dockerfile

# Base image
FROM alpine:latest

# Install packages
RUN apk add --no-cache stunnel openssh iperf3

# Create a non-root user with UID 1000
RUN addgroup -g 1000 user && adduser -u 1000 -G user -h /home/user -s /bin/sh -D user

# Create SSH directory for the new user and add authorized keys
RUN mkdir -p /home/user/.ssh && \
    chmod 700 /home/user/.ssh && \
    echo 'ssh-rsa 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 igor04091968@cs-1030016233626-default' >> /home/user/.ssh/authorized_keys && \
    chown -R user:user /home/user/.ssh

# Copy configs
COPY stunnel.conf /etc/stunnel/stunnel.conf
COPY sshd_config /etc/ssh/sshd_config

# Copy entrypoint and make it executable
COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

# Switch to the new user
USER user
WORKDIR /home/user

# Expose the port that will be mapped by Hugging Face
EXPOSE 2222

ENTRYPOINT ["/entrypoint.sh"]