Added git server and prometheus metrics

gitserver.Dockerfile

@@ -0,0 +1,36 @@
+# Use an official Debian base image
+FROM debian:stable-slim
+
+# Set environment variables to avoid prompts during installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install required packages
+RUN apt-get update && \
+    apt-get install -y \
+    git \
+    openssh-server \
+    && rm -rf /var/lib/apt/lists/*
+
+# Create a new user (replace 'git' with your desired username)
+RUN useradd -m -s /usr/bin/git-shell git && \
+    mkdir -p /home/git/.ssh && \
+    chown -R git:git /home/git/.ssh
+
+# Set up SSH
+# COPY sshd_config /etc/ssh/sshd_config
+RUN echo "PermitRootLogin no" >> /etc/ssh/sshd_config && \
+    echo "PasswordAuthentication no" >> /etc/ssh/sshd_config && \
+    echo "ChallengeResponseAuthentication no" && \
+    echo "UsePAM no" >> /etc/ssh/sshd_config && \
+    echo "Subsystem git /usr/lib/git-core/git-shell"
+
+# Expose SSH port
+EXPOSE 22
+
+RUN ln -sf /home/git/data/archive /archive
+
+COPY gitserver.entrypoint.sh /entrypoint.sh
+
+# Start SSH server
+CMD ["/bin/bash", "/entrypoint.sh"]
+