added Dockerfile

README.md

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+# Installation/Development via pip
+1. create virtual environment: `python3 -m venv venv`
+2. activate it: `. venv/bin/activate`
+3. install Django: `pip install -r requirements.txt`
+4. Initialize DB: `python3 manage.py migrate`
+5. Run Django project: `python3 manage.py runserver`
+
+# Docker/Podman
+podman build -t isotables isotables
+podman run -p 8000:8000 localhost/isotable:latest
+
+

isotables/Dockerfile

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+# Use the official Python runtime image
+FROM python:3.13-alpine
+ 
+# Create the app directory
+RUN mkdir /app
+ 
+# Set the working directory inside the container
+WORKDIR /app
+
+# Create a non-privileged user that the app will run under.
+# See https://docs.docker.com/go/dockerfile-user-best-practices/
+ARG UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    appuser
+ 
+# Set environment variables 
+# Prevents Python from writing pyc files to disk
+ENV PYTHONDONTWRITEBYTECODE=1
+# Prevents Python from buffering stdout and stderr
+ENV PYTHONUNBUFFERED=1 
+# Ignore pip warning about running as root
+ENV PIP_ROOT_USER_ACTION=ignore
+ 
+# Upgrade pip
+#RUN pip install --upgrade pip
+
+# Download dependencies as a separate step to take advantage of Docker's caching.
+# Leverage a cache mount to /root/.cache/pip to speed up subsequent builds.
+# Leverage a bind mount to requirements.txt to avoid having to copy them into
+# into this layer.
+RUN --mount=type=cache,target=/root/.cache/pip \
+    --mount=type=bind,source=requirements.txt,target=/requirements.txt \
+    python -m pip install -r /requirements.txt
+
+## Copy the Django project  and install dependencies
+#COPY requirements.txt  /app/
+# 
+## run this command to install all dependencies 
+#RUN pip install --no-cache-dir -r requirements.txt
+##RUN pip install --no-cache-dir django-tailwind
+ 
+# Switch to the non-privileged user to run the application.
+USER appuser 
+
+# allow all hosts
+ENV DJANGO_ALLOWED_HOSTS=*
+
+# Copy the Django project files to the container
+COPY --chown=appuser:appuser isotables/ /app/isotables
+COPY --chown=appuser:appuser isotopapp/ /app/isotopapp
+COPY --chown=appuser:appuser manage.py db.sqlite3 /app/
+ 
+# Expose the Django port
+EXPOSE 8000
+ 
+# Run Django’s development server
+CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]