service change

.env.example

@@ -0,0 +1,9 @@
+# AutoKanban Environment Configuration
+# Copy this file to .env and update with your values
+
+# Admin password for task approval and management
+ADMIN_PASSWORD=your_secure_password_here
+
+# Session secret key for secure cookie signing
+# Generate a random string for production (e.g., openssl rand -hex 32)
+SESSION_SECRET=your_random_secret_key_here_at_least_32_characters_long

PRODUCTION.md

@@ -0,0 +1,115 @@
+# Production Deployment Checklist
+
+## Before Going Live
+
+### 1. Environment Configuration
+
+- [ ] Copy `.env.example` to `.env` on the Pi
+- [ ] Set a strong `ADMIN_PASSWORD` in `.env`
+- [ ] Generate and set `SESSION_SECRET` in `.env`:
+
+  ```bash
+  # On the Pi, generate a secure random key:
+  openssl rand -hex 32
+  # Copy the output and add to .env as SESSION_SECRET
+  ```
+
+### 2. Security
+
+- [ ] Ensure `.env` is in `.gitignore` (already done)
+- [ ] Never commit `.env` file to git
+- [ ] Change default admin password from example
+
+### 3. Hardware Setup
+
+- [ ] Thermal printer connected via GPIO (Yellow to Pin 8, GND to Pin 6)
+- [ ] External 9V power supply for printer
+- [ ] Verify printer works: `echo -e "\x1B\x40Test\n\n\n" > /dev/serial0`
+- [ ] Serial port enabled: `ls -la /dev/serial0` should point to ttyAMA0
+
+### 4. Service Configuration
+
+- [ ] Run `./setup_service.sh` to enable autostart
+- [ ] Verify service is running: `sudo systemctl status autokanban`
+- [ ] Test autostart by rebooting: `sudo reboot`
+
+### 5. Network Access
+
+- [ ] Set hostname to `autokanban`: `sudo hostnamectl set-hostname autokanban`
+- [ ] Access app at `http://autokanban.local:8000`
+- [ ] Verify 124 Hub link in header works
+
+### 6. Production Settings Verified
+
+- [ ] `ENABLE_PHYSICAL_PRINTER = True` in `app/main.py`
+- [ ] Debug print statements removed
+- [ ] Session secret loaded from environment variable
+- [ ] Service runs without `--reload` flag
+
+### 7. Testing
+
+- [ ] Submit a test task
+- [ ] Approve task as admin
+- [ ] Print task and verify:
+  - [ ] Preview image shows on website
+  - [ ] Physical card prints with formatting
+  - [ ] Icon appears correctly
+  - [ ] Text is readable (larger fonts)
+- [ ] Test "Erneut drucken" (reprint) function
+- [ ] Test service restart: `sudo systemctl restart autokanban`
+
+### 8. Monitoring
+
+- [ ] Check logs: `sudo journalctl -u autokanban -f`
+- [ ] Verify no errors in startup
+- [ ] Test graceful shutdown: `sudo systemctl stop autokanban`
+
+## Post-Deployment
+
+### Regular Maintenance
+
+```bash
+# Update code
+cd ~/autokanban
+git pull
+sudo systemctl restart autokanban
+
+# View logs
+sudo journalctl -u autokanban -n 100
+
+# Check service status
+sudo systemctl status autokanban
+
+# Backup tasks
+cp data/tasks.json data/tasks.json.backup
+```
+
+### Troubleshooting
+
+```bash
+# Service won't start
+sudo journalctl -u autokanban -n 50
+
+# Printer not working
+ls -la /dev/serial0
+stty -F /dev/serial0
+
+# Check if port is accessible
+curl http://localhost:8000
+
+# Restart service
+sudo systemctl restart autokanban
+```
+
+## Current Configuration
+
+- **Port**: 8000
+- **Hostname**: autokanban.local
+- **Access URL**: <http://autokanban.local:8000>
+- **Printer**: GPIO serial (/dev/serial0, 19200 baud)
+- **Service**: Systemd with autostart enabled
+- **Data**: JSON file at `data/tasks.json`
+- **Previews**: PNG files in `out/`
+
+---
+Last updated: 2025-11-20

app/main.py

@@ -14,8 +14,13 @@ from app.models import Task
 from dotenv import load_dotenv
 from PIL import Image, ImageDraw, ImageFont
 
+# Load environment variables
+load_dotenv()
+
 app = FastAPI()
-app.add_middleware(SessionMiddleware, secret_key="CHANGE_THIS_SECRET")
+# Use environment variable for session secret, fallback to random for dev
+SESSION_SECRET = os.getenv("SESSION_SECRET", "CHANGE_THIS_SECRET")
+app.add_middleware(SessionMiddleware, secret_key=SESSION_SECRET)
 templates = Jinja2Templates(directory="app/templates")
 app.mount("/static", StaticFiles(directory="app/static"), name="static")
 app.mount("/out", StaticFiles(directory="out"), name="out")
@@ -240,7 +245,6 @@ def print_task(request: Request, task_id: str):
 
                     # Print to physical printer if enabled
                     if ENABLE_PHYSICAL_PRINTER:
-                        print(f"[DEBUG] Attempting to print to {PRINTER_DEVICE} at {PRINTER_BAUDRATE} baud...")
                         try:
                             printer = escpos.printer.Serial(devfile=PRINTER_DEVICE, baudrate=PRINTER_BAUDRATE, timeout=1)
 
@@ -249,13 +253,10 @@ def print_task(request: Request, task_id: str):
                             printer.text("\n\n")  # Add some spacing after image
                             printer.cut()
 
-                            print(f"[DEBUG] Print command sent successfully")
                         except Exception as print_err:
                             print(f"[ERROR] Printer failed: {print_err}")
                             import traceback
                             traceback.print_exc()
-                    else:
-                        print(f"[DEBUG] Physical printer disabled, skipping print")
 
                     task.status = "printed"
                     msg = "success"

autokanban.service

@@ -1,12 +1,16 @@
 [Unit]
 Description=AutoKanban Thermal Printer Web App
 After=network.target
+# Wait for system to fully boot before starting
+After=multi-user.target
 
 [Service]
 Type=simple
 User=pi
 Group=pi
 WorkingDirectory=/home/pi/autokanban
+# Add delay to avoid boot messages on serial port
+ExecStartPre=/bin/sleep 10
 Environment="PATH=/home/pi/.pyenv/versions/autokanban/bin:/usr/local/bin:/usr/bin:/bin"
 Environment="PYENV_ROOT=/home/pi/.pyenv"
 ExecStart=/home/pi/.pyenv/versions/autokanban/bin/python /home/pi/autokanban/start_app.py