Removed "Project Structure" section of README.md

- Added LOGO_URL to `example.env` and index.html template
- Rewrote README.md to reflect current methods of installing and configuring

.github/workflows/docker-image.yml

@@ -0,0 +1,32 @@
+name: Docker Image CI
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+      - name: Log in to DockerHub
+        if: github.event_name == 'push'
+        uses: docker/login-action@v2
+        with:
+          username: ${{ vars.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Build the Docker image
+        id: build-image
+        run: |
+          IMAGE_TAG=my-image-name:${{ github.sha }}
+          docker build . --file Dockerfile --tag $IMAGE_TAG
+          echo "IMAGE_TAG=$IMAGE_TAG" >> $GITHUB_ENV
+# Uncomment below to push the image to Docker Hub (or another registry)
+      - name: Push the Docker image
+        if: github.event_name == 'push'
+        run: |
+          docker tag $IMAGE_TAG snachodog/kiosk-guestbook:latest
+          docker push snachodog/kiosk-guestbook:latest

.gitignore

@@ -184,3 +184,5 @@ cython_debug/
 # VS Code
 .vscode/
 
+.env
+docker-compose.yml

Dockerfile

@@ -4,18 +4,25 @@ FROM python:3.9-slim
 # Set the working directory
 WORKDIR /app
 
-# Install dependencies
+# Install system dependencies (including gettext for envsubst)
+RUN apt-get update && apt-get install -y gettext && rm -rf /var/lib/apt/lists/*
+
+# Install Python dependencies
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy the application code
+# Copy the application code and template files
 COPY . .
 
+# Copy the entrypoint script into the container and make it executable
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
 # Set environment variables (can be overridden by .env)
 ENV FLASK_ENV=production
 
 # Expose the port (Gunicorn will run on 8000)
 EXPOSE 8000
 
-# Run the app with Gunicorn; use 3 workers (can be tuned via .env)
-CMD ["gunicorn", "--bind", "0.0.0.0:8000", "app:app", "--workers", "3"]
+# Use the entrypoint script as the container's command
+CMD ["/entrypoint.sh"]

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Montana Dinosaur Center
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -8,38 +8,17 @@ A simple Flask-based guestbook application designed for an internal museum kiosk
 
 - Dynamic Form Behavior:
 The comment field is hidden by default and only revealed when the first name, last name, and location fields each contain at least 3 characters.
--Input Validation:
-Ensures required fields (first name, last name, and location) are filled.
-- Validates email format (if provided).
+- Input Validation:
+Ensures required fields (first name, last name, and location) are filled and validates email format (if provided).
 Uses a profanity filter loaded from en.txt to prevent inappropriate language in comments.
 - Logging:
-Logs key events and validation errors to help with debugging and monitoring.
+Logs key events and validation errors for debugging and monitoring.
 - SQLite Database:
 Stores guest entries locally, with persistence ensured by mounting a Docker volume.
 - Containerized Deployment:
-Uses Docker and Docker Compose to create a production-ready environment with Gunicorn as the WSGI server.
-
-## Project Structure
-
-``` bash
-kiosk-guestbook/
-├── scripts/
-│   ├── guestbook_export.py    # Script to export guest entries (e.g., for Mailchimp)
-│   └── guestbook.db           # SQLite database file (if stored here, mainly for development)
-├── static/
-│   └── images/
-│       └── logo.png           # Logo for display in the application
-├── templates/
-│   └── index.html             # Main HTML template for the guestbook
-├── .env                       # Environment variables for Docker Compose (production settings)
-├── app.py                     # Main Flask application code
-├── docker-compose.yml         # Docker Compose configuration for container orchestration
-├── Dockerfile                 # Default Dockerfile (development or general usage)
-├── en.txt                     # Profanity list file (one banned word per line)
-├── production.Dockerfile      # Optional Dockerfile optimized for production
-├── README.md                  # Project documentation
-└── requirements.txt           # Python dependencies (Flask, Gunicorn, etc.)
-```
+Uses Docker and Docker Compose for a production-ready environment with Gunicorn as the WSGI server.
+- Configurable Template:
+The application’s title and logo can be dynamically configured via environment variables without rebuilding the image.
 
 ## Getting Started
 
@@ -47,40 +26,95 @@ kiosk-guestbook/
 
 - Docker
 - Docker Compose
+- Optionally, Portainer for GUI-based container management
 
-### Building and Running the Application
+## Running the Application
 
-### Build and Start Containers
+Before proceeding, you’ll need to have the example configuration files. These files—example.docker-compose.yml and example.env—are included in the repository. You can download them by cloning the entire repository:
 
-1. From the project root, run:
-`docker-compose up --build -d`
-This command will build the Docker image, start the container in detached mode, and mount the persistent volume at `/data` for the SQLite database.
+```bash
+git clone https://github.com/tmdinosaurcenter/kiosk-guestbook.git
+cd kiosk-guestbook
+```
 
-2. Access the Application:
-Open a web browser and navigate to `http://<your-server-ip>:8000` (or the port specified in your .env file).
+If you don’t wish to clone the entire repo, you can also download the two files individually from GitHub. Once you have them, follow the steps below.
 
-### Deployment with Docker Compose
+### Method 1: Using Docker on the CLI
 
-The `docker-compose.yml` is configured to:
+1. Copy Example Files:
+From the project root, copy the example files:
 
-- Build the image from the Dockerfile.
-- Expose the service on the specified port.
-- Mount a volume (named `guestbook_data`) at `/data` to persist your database.
-- Load environment variables from the `.env` file
+``` bash
+cp example.docker-compose.yml docker-compose.yml
+cp example.env .env
+```
 
-### Logging and Monitoring
+2. **Edit the `.env` File (Optional)**
+
+Modify `.env` to customize settings such as `SITE_TITLE`, `LOGO_URL`, `PORT`, etc.
+
+3. **Start the Application**
+
+Run the following command to pull (or use) the pre-built image and start the container:
+
+`docker-compose up -d`
+
+This command starts the container in detached mode, mounts the persistent volume for the SQLite database, and uses your environment variable settings.
+
+4. **Access the Application**
+
+Open your browser and navigate to `http://<your-server-ip>:8000` (or the port specified in your `.env` file).
+
+### Method 2: Running in Portainer
+
+1. **Copy Example Files**
+
+```bash
+cp example.docker-compose.yml docker-compose.yml
+cp example.env stack.env
+```
+
+*Note*: Portainer expects the environment file to be named stack.env rather than .env
+
+2. **Edit `docker-compose.yml`**
+In the `docker-compose.yml` file, update the environment file reference from `.env` to `stack.env`
+
+3. **Deploy via Portainer**
+
+   - Log in to Portainer and navigate to the "Stacks" section.
+   - Create a new stack and upload or paste your modified docker-compose.yml along with the `stack.env` file.
+   - Deploy the stack. Portainer will use stack.env for the environment variables.
+
+4. **Access the Application:**
+Once deployed, open your browser and navigate to http://<your-server-ip>:8000 (or your specified port) to view the application.
+
+## Logging and Monitoring
 
 - The application uses Python's built-in logging module.
-- Key events (like database initialization, form submissions, and validation errors) are logged.
-- Logs can be viewed by running:
+- Key events, such as database initialization, form submissions, and validation errors, are logged.
+- View logs with:
+
 `docker-compose logs -f`
 
+## API Access
+
+Access the API endpoint to export guest entries by navigating to:
+
+`http://your-server-ip:8000/guests/api`
+
+This endpoint can be integrated with on-prem automation tools like n8n.
+
 ## Additional Notes
 
-- Intranet-Only Deployment:
-This application is designed for internal use only. It is not exposed to the public internet.
-- Database Persistence:
-The SQLite database is stored in a Docker volume (guestbook_data), ensuring that data persists even if containers are rebuilt.
-- Production Considerations:
+- **Intranet-Only Deployment**
+This application is designed for internal use only and is not exposed to the public internet.
 
-The app runs with Gunicorn as a production-ready WSGI server. Make sure to adjust worker counts and resource limits as needed based on your server’s specifications.
+- **Database Persistence**
+The SQLite database is stored in a Docker volume (guestbook_data), ensuring that data persists even if containers are rebuilt.
+
+- **Production Considerations**
+The app runs with Gunicorn as a production-ready WSGI server. Adjust worker counts and resource limits as needed based on your server’s specifications.
+
+## License
+
+This project is licensed under the [MIT License](LICENSE).

app.py

@@ -1,24 +1,17 @@
-from flask import Flask, render_template, request, redirect, url_for
+from flask import Flask, render_template, request, redirect, url_for, jsonify, abort
 import sqlite3
 import re
 import logging
 import os
 
-# Set up basic logging
+# Set up logging
 logging.basicConfig(level=logging.INFO)
 logger = logging.getLogger(__name__)
 
 app = Flask(__name__)
-
-# Use an environment variable for the database path (defaulting to 'guestbook.db')
 DATABASE = os.environ.get('DATABASE_PATH', 'guestbook.db')
 
 def load_banned_words():
-    """Load a set of banned words from a local file.
-
-    Expects 'en.txt' to be in the same directory as this script.
-    If the file is missing, a minimal fallback set is used.
-    """
     banned_words = set()
     file_path = os.path.join(os.path.dirname(__file__), 'en.txt')
     if os.path.exists(file_path):
@@ -33,15 +26,13 @@ def load_banned_words():
             logger.error("Error reading banned words file: %s", e)
             banned_words = {"fuck", "shit", "damn", "bitch", "asshole", "cunt", "dick", "piss", "crap", "hell"}
     else:
-        logger.warning("Banned words file not found. Using fallback minimal list.")
+        logger.warning("Banned words file not found. Using fallback list.")
         banned_words = {"fuck", "shit", "damn", "bitch", "asshole", "cunt", "dick", "piss", "crap", "hell"}
     return banned_words
 
-# Load the banned words using the helper function.
 BANNED_WORDS = load_banned_words()
 
 def contains_banned_words(text):
-    """Check if the provided text contains any banned words."""
     words = text.lower().split()
     for word in words:
         word_clean = word.strip(".,!?;:\"'")
@@ -50,7 +41,6 @@ def contains_banned_words(text):
     return False
 
 def init_db():
-    """Initialize the SQLite database and create the guests table if it doesn't exist."""
     conn = sqlite3.connect(DATABASE)
     c = conn.cursor()
     c.execute('''
@@ -61,6 +51,7 @@ def init_db():
             email TEXT,
             location TEXT NOT NULL,
             comment TEXT,
+            newsletter_opt_in BOOLEAN DEFAULT 1,
             timestamp DATETIME DEFAULT CURRENT_TIMESTAMP
         )
     ''')
@@ -69,35 +60,34 @@ def init_db():
     logger.info("Database initialized.")
 
 def is_valid_email(email):
-    """Simple regex-based email validation."""
     pattern = r'^[\w\.-]+@[\w\.-]+\.\w+$'
     return re.match(pattern, email)
 
 @app.before_first_request
 def initialize_database():
-    """Ensure the database is initialized before handling the first request."""
     init_db()
 
 @app.route('/', methods=['GET', 'POST'])
 def index():
     error = None
     if request.method == 'POST':
-        logger.info("Received POST request with form data.")
+        logger.info("Received POST request.")
         first_name = request.form.get('first_name', '').strip()
         last_name = request.form.get('last_name', '').strip()
         email = request.form.get('email', '').strip()
         location = request.form.get('location', '').strip()
         comment = request.form.get('comment', '').strip()
+        newsletter_opt_in = request.form.get('newsletter_opt_in') == 'on'
 
         if not (first_name and last_name and location):
             error = "First name, last name, and location are required."
-            logger.warning("Validation error: Missing required fields.")
+            logger.warning("Missing required fields.")
         elif email and not is_valid_email(email):
             error = "Invalid email address."
-            logger.warning("Validation error: Invalid email address '%s'.", email)
+            logger.warning("Invalid email: %s", email)
         elif comment and contains_banned_words(comment):
             error = "Your comment contains inappropriate language. Please revise."
-            logger.warning("Validation error: Inappropriate language detected in comment.")
+            logger.warning("Profanity detected in comment.")
 
         if error:
             conn = sqlite3.connect(DATABASE)
@@ -110,25 +100,57 @@ def index():
         conn = sqlite3.connect(DATABASE)
         c = conn.cursor()
         c.execute(
-            'INSERT INTO guests (first_name, last_name, email, location, comment) VALUES (?, ?, ?, ?, ?)',
-            (first_name, last_name, email, location, comment)
+            '''
+            INSERT INTO guests (first_name, last_name, email, location, comment, newsletter_opt_in)
+            VALUES (?, ?, ?, ?, ?, ?)
+            ''',
+            (first_name, last_name, email, location, comment, newsletter_opt_in)
         )
         conn.commit()
         conn.close()
-        logger.info("New guest entry added: %s from %s.", first_name, location)
+        logger.info("Added guest: %s %s from %s", first_name, last_name, location)
         return redirect(url_for('index'))
 
-    # For GET requests, retrieve guest entries to display.
     conn = sqlite3.connect(DATABASE)
     c = conn.cursor()
     c.execute('SELECT first_name, location FROM guests ORDER BY id DESC')
     guests = c.fetchall()
     conn.close()
-    logger.info("Rendering guestbook page with %d entries.", len(guests))
+    logger.info("Rendering index with %d guests.", len(guests))
     return render_template('index.html', error=error, guests=guests)
 
+@app.route('/api/guests', methods=['GET'])
+def api_guests():
+    api_key = request.headers.get('X-API-Key')
+    if api_key != os.environ.get("API_KEY"):
+        abort(403)
+
+    conn = sqlite3.connect(DATABASE)
+    c = conn.cursor()
+    c.execute('''
+        SELECT first_name, last_name, email, location, comment, newsletter_opt_in, timestamp
+        FROM guests
+        WHERE email IS NOT NULL AND email != ''
+        ORDER BY id DESC
+    ''')
+    rows = c.fetchall()
+    conn.close()
+
+    guests = [
+        {
+            "first_name": row[0],
+            "last_name": row[1],
+            "email": row[2],
+            "location": row[3],
+            "comment": row[4],
+            "newsletter_opt_in": bool(row[5]),
+            "timestamp": row[6]
+        }
+        for row in rows
+    ]
+    return jsonify(guests)
+
 if __name__ == '__main__':
-    # For development use; production (gunicorn) will not execute this block.
     init_db()
-    logger.info("Starting Flask app on host 0.0.0.0, port 8000.")
+    logger.info("Starting development server at http://0.0.0.0:8000")
     app.run(host='0.0.0.0', port=8000)

entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+# Process index.html.template to create index.html
+# Adjust the path if your template is located somewhere else
+envsubst < /app/templates/index.html.template > /app/templates/index.html
+
+# Start Gunicorn; using an environment variable for workers (default is 3)
+exec gunicorn --bind 0.0.0.0:8000 app:app --workers ${WORKERS:-3}

example.docker-compose.yml

@@ -1,15 +1,15 @@
 version: "3.8"
 services:
   guestbook:
-    build: .
+    image: snachodog/kiosk-guestbook:latest
     container_name: guestbook
     ports:
       - "${PORT:-8000}:8000"
     env_file:
       - .env
     volumes:
-      # Mount a named volume at /data so that the database file (configured in .env) persists
-      - /home/steve/kiosk-guestbook:/data
+      # Mount your local directory to persist data; adjust if you prefer a named volume
+      - /path/to/guestbook_data:/data
 
 volumes:
   guestbook_data:

example.env

@@ -3,9 +3,10 @@ PORT=8000
 # Flask environment setting (production)
 FLASK_ENV=production
 # Path to the SQLite database (this file will be stored in the mounted /data volume)
-DATABASE_PATH=/data/scripts/guestbook.db
+DATABASE_PATH=/data/guestbook.db
 # Number of Gunicorn workers (adjust as needed)
 GUNICORN_WORKERS=3
 PID=1000
 GID=1000
-
+SITE_TITLE="The Montana Dinosaur Center Visitor Log"
+LOGO_URL="/static/images/logo.png"

production.Dockerfile

@@ -1,14 +0,0 @@
-FROM python:3.9-slim
-
-WORKDIR /app
-
-# Copy and install Python dependencies.
-COPY requirements.txt requirements.txt
-RUN pip install --no-cache-dir -r requirements.txt
-
-# Copy the rest of the app code.
-COPY . .
-
-EXPOSE 5000
-
-CMD ["python", "app.py"]

templates/index.html.template

@@ -2,11 +2,12 @@
 <html lang="en">
 
 <head>
-    <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <title>The Montana Dinosaur Center Visitor Log</title>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>${SITE_TITLE}</title>
+
     <!-- Bootstrap CSS -->
-    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
+    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" />
     <style>
         /* Scrolling marquee styles */
         .scrolling-wrapper {
@@ -40,8 +41,8 @@
 <body>
     <div class="container mt-5 mb-5">
         <header class="d-flex align-items-center mb-4">
-            <img src="static/images/logo.png" alt="Museum Logo" class="me-3" style="height: 50px;">
-            <h1 class="h3 mb-0">The Montana Dinosaur Center Visitor Log</h1>
+            <img src="${LOGO_URL}" alt="Logo" class="me-3" style="height: 50px;" />
+            <h1 class="h3 mb-0">${SITE_TITLE}</h1>
         </header>
 
         <!-- Brief instructions for the form -->
@@ -59,25 +60,38 @@
         <form method="post" action="/" class="mb-4">
             <div class="mb-3">
                 <label for="first_name" class="form-label">First Name(s):</label>
-                <input type="text" class="form-control" id="first_name" name="first_name" required>
+                <input type="text" class="form-control" id="first_name" name="first_name" required />
             </div>
             <div class="mb-3">
                 <label for="last_name" class="form-label">Last Name:</label>
-                <input type="text" class="form-control" id="last_name" name="last_name" required>
+                <input type="text" class="form-control" id="last_name" name="last_name" required />
             </div>
+
+            <!-- Email + Newsletter Block (fully fixed) -->
             <div class="mb-3">
                 <label for="email" class="form-label">Email (Optional):</label>
-                <input type="email" class="form-control" id="email" name="email">
+                <input type="email" class="form-control" id="email" name="email" />
+
+                <div class="form-check mt-2">
+                    <input class="form-check-input" type="checkbox" name="newsletter_opt_in" id="newsletter_opt_in"
+                        checked />
+                    <label class="form-check-label" for="newsletter_opt_in">
+                        Subscribe our newsletter
+                    </label>
+                </div>
             </div>
+
             <div class="mb-3">
                 <label for="location" class="form-label">Location:</label>
-                <input type="text" class="form-control" id="location" name="location" required>
+                <input type="text" class="form-control" id="location" name="location" required />
             </div>
+
             <!-- Comment field hidden by default -->
             <div class="mb-3" id="comment-field" style="display: none;">
                 <label for="comment" class="form-label">Comment (Optional):</label>
                 <textarea class="form-control" id="comment" name="comment" rows="3"></textarea>
             </div>
+
             <button type="submit" class="btn btn-primary">Submit</button>
         </form>
     </div>
@@ -96,24 +110,26 @@
     <!-- JavaScript to reveal the comment field -->
     <script>
         document.addEventListener("DOMContentLoaded", function () {
-            const firstNameInput = document.getElementById('first_name');
-            const lastNameInput = document.getElementById('last_name');
-            const locationInput = document.getElementById('location');
-            const commentField = document.getElementById('comment-field');
+            const firstNameInput = document.getElementById("first_name");
+            const lastNameInput = document.getElementById("last_name");
+            const locationInput = document.getElementById("location");
+            const commentField = document.getElementById("comment-field");
 
             function checkFields() {
-                if (firstNameInput.value.trim().length >= 3 &&
+                if (
+                    firstNameInput.value.trim().length >= 3 &&
                     lastNameInput.value.trim().length >= 3 &&
-                    locationInput.value.trim().length >= 3) {
-                    commentField.style.display = 'block';
+                    locationInput.value.trim().length >= 3
+                ) {
+                    commentField.style.display = "block";
                 } else {
-                    commentField.style.display = 'none';
+                    commentField.style.display = "none";
                 }
             }
 
-            firstNameInput.addEventListener('input', checkFields);
-            lastNameInput.addEventListener('input', checkFields);
-            locationInput.addEventListener('input', checkFields);
+            firstNameInput.addEventListener("input", checkFields);
+            lastNameInput.addEventListener("input", checkFields);
+            locationInput.addEventListener("input", checkFields);
         });
     </script>