Enhance setup and testing scripts for improved package management and logging

- Updated setup.sh to check for Nala installation and provide alternative installation methods based on Ubuntu version.
- Added error handling for package installation, allowing fallback to apt if Nala fails.
- Introduced startup.sh to perform container startup checks, including system info and permissions for logs directory.
- Created test-setup.sh to validate bootstrap and setup scripts, including detailed logging of package availability and installation results.
- Implemented checks for missing packages and provided recommendations for manual installation.
- Enhanced logging for better traceability of actions and errors during setup and testing processes.

Dockerfile

@@ -0,0 +1,80 @@
+# Dockerfile to test bootstrap.sh and setup.sh scripts in different environments
+# This allows testing the setup process in isolated containers
+
+# Ubuntu test environment
+FROM ubuntu:24.04 as ubuntu-test
+LABEL description="Ubuntu test environment for shell setup scripts"
+
+# Install minimal dependencies needed to run the test
+ENV TZ=America/New_York
+ENV DEBIAN_FRONTEND=noninteractive
+ARG APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1
+
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone \
+    && apt-get update && apt-get install -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" -y curl git sudo wget
+
+# Pre-install cowsay and lolcat packages for testing
+RUN apt-get update && apt-get install -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" -y cowsay lolcat
+
+# Create logs directory with proper permissions
+RUN mkdir -p /logs && chmod -R 777 /logs
+
+# Create a test user with sudo permissions
+RUN useradd -ms /bin/bash testuser && \
+    echo "testuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/testuser
+
+USER testuser
+WORKDIR /home/testuser
+
+# Create directory structure for shell setup
+RUN mkdir -p /home/testuser/shell/setup
+
+# Copy test script, startup script, and packages.list
+COPY --chown=testuser:testuser test-setup.sh /home/testuser/
+COPY --chown=testuser:testuser startup.sh /home/testuser/
+COPY --chown=testuser:testuser setup/packages.list /home/testuser/shell/setup/
+
+# Make scripts executable
+RUN chmod +x /home/testuser/test-setup.sh
+RUN chmod +x /home/testuser/startup.sh
+
+CMD ["/bin/bash", "-c", "./startup.sh"]
+
+# Debian test environment
+FROM debian:12 as debian-test
+LABEL description="Debian test environment for shell setup scripts"
+
+# Install minimal dependencies needed to run the test
+ENV TZ=America/New_York
+ENV DEBIAN_FRONTEND=noninteractive
+ARG APT_KEY_DONT_WARN_ON_DANGEROUS_USAGE=1
+
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone \
+    && apt-get update && apt-get install -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" -y curl git sudo wget
+
+# Pre-install cowsay and lolcat packages for testing
+RUN apt-get update && apt-get install -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confnew" -y cowsay lolcat
+
+# Create logs directory with proper permissions
+RUN mkdir -p /logs && chmod -R 777 /logs
+
+# Create a test user with sudo permissions
+RUN useradd -ms /bin/bash testuser && \
+    echo "testuser ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/testuser
+
+USER testuser
+WORKDIR /home/testuser
+
+# Create directory structure for shell setup
+RUN mkdir -p /home/testuser/shell/setup
+
+# Copy test script, startup script, and packages.list
+COPY --chown=testuser:testuser test-setup.sh /home/testuser/
+COPY --chown=testuser:testuser startup.sh /home/testuser/ 
+COPY --chown=testuser:testuser setup/packages.list /home/testuser/shell/setup/
+
+# Make scripts executable
+RUN chmod +x /home/testuser/test-setup.sh
+RUN chmod +x /home/testuser/startup.sh
+
+CMD ["/bin/bash", "-c", "./startup.sh"]