Dockerfile

FROM nikolaik/python-nodejs:python3.9-nodejs18

USER root

# Install necessary packages
RUN apt-get -y update && apt-get -y install nginx xvfb openssh-server

# Prepare Nginx directories
RUN mkdir -p /var/cache/nginx \
             /var/log/nginx \
             /var/lib/nginx
RUN touch /var/run/nginx.pid

# Change ownership to non-root user
RUN chown -R pn:pn /var/cache/nginx \
                       /var/log/nginx \
                       /var/lib/nginx \
                       /var/run/nginx.pid

# Switch to non-root user
USER pn
ENV HOME=/home/pn \
    PATH=/home/pn/.local/bin:$PATH

RUN mkdir $HOME/app

WORKDIR $HOME/app

# Install necessary npm packages
RUN npm install --save express ws

# Copy Nginx configuration
COPY --chown=pn nginx.conf /etc/nginx/sites-available/default

# SSH Setup
# Create the .ssh directory and generate SSH key pair non-interactively
RUN mkdir -p /home/pn/.ssh && \
    ssh-keygen -t rsa -b 4096 -f /home/pn/.ssh/id_rsa -N "" && \
    chmod 700 /home/pn/.ssh && \
    chmod 600 /home/pn/.ssh/id_rsa && \
    chmod 644 /home/pn/.ssh/id_rsa.pub

# Expose SSH port (usually port 22)
EXPOSE 22

# Switch back to root for running SSH daemon and Nginx
USER root

# Start SSH manually without systemctl
RUN mkdir /var/run/sshd

# Expose Nginx port (default port 80)
EXPOSE 80

# Ensure services start correctly
CMD ["../../../usr/sbin/sshd", "-D"]  # Starts the SSH server in the foreground