Replace MySQL with SQLite, fix Jinja2 template syntax, and add README

app/app.py

@@ -7,8 +7,6 @@ from datetime import datetime, timezone
 from concurrent.futures import ThreadPoolExecutor, as_completed
 
 import paramiko
-import pymysql
-pymysql.install_as_MySQLdb()
 
 from flask import Flask, render_template, jsonify
 from flask_sqlalchemy import SQLAlchemy
@@ -16,12 +14,10 @@ from flask_sqlalchemy import SQLAlchemy
 logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s %(message)s')
 logger = logging.getLogger(__name__)
 
+DB_PATH = '/app/data/infmap.db'
+
 app = Flask(__name__)
-app.config['SQLALCHEMY_DATABASE_URI'] = (
-    f"mysql+pymysql://{os.environ['MYSQL_USER']}:{os.environ['MYSQL_PASSWORD']}"
-    f"@{os.environ.get('MYSQL_HOST', 'db')}/{os.environ['MYSQL_DATABASE']}"
-)
-app.config['SQLALCHEMY_ENGINE_OPTIONS'] = {'pool_recycle': 280, 'pool_pre_ping': True}
+app.config['SQLALCHEMY_DATABASE_URI'] = f'sqlite:///{DB_PATH}'
 db = SQLAlchemy(app)
 
 COLLECTION_INTERVAL = int(os.environ.get('COLLECTION_INTERVAL', 300))
@@ -349,19 +345,10 @@ def usage_color(percent):
 # --- Main ---
 
 if __name__ == '__main__':
-    # Wait for database
-    for attempt in range(30):
-        try:
-            with app.app_context():
-                db.create_all()
-            logger.info("Database ready")
-            break
-        except Exception as e:
-            logger.info("Waiting for database... (%s)", e)
-            time.sleep(2)
-    else:
-        logger.error("Could not connect to database after 30 attempts")
-        exit(1)
+    os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)
+    with app.app_context():
+        db.create_all()
+    logger.info("Database ready at %s", DB_PATH)
 
     # Start collector thread
     collector_thread = threading.Thread(target=collector_loop, daemon=True)

app/gather_info.sh

@@ -92,11 +92,11 @@ done
 
 # GPUs
 gpu_idx=0
-lspci 2>/dev/null | grep -iE 'vga|3d|display' | while read -r line; do
+while read -r line; do
     echo "[gpu:$gpu_idx]"
     echo "description=$line"
     gpu_idx=$((gpu_idx + 1))
-done
+done < <(lspci 2>/dev/null | grep -iE 'vga|3d|display')
 
 # Network interfaces
 for iface in $(ls /sys/class/net/ 2>/dev/null); do

app/requirements.txt

@@ -1,5 +1,4 @@
 flask==3.1.*
 flask-sqlalchemy==3.1.*
-pymysql==1.1.*
 paramiko==3.5.*
 cryptography>=43.0

app/templates/index.html

@@ -142,7 +142,7 @@
                                         <td>{{ iface.get('ipv6', '-') or '-' }}</td>
                                         <td>{{ iface.get('mac', '-') or '-' }}</td>
                                         <td>{{ iface.get('state', '-') }}</td>
-                                        <td>{% if iface.get('speed_mbps') %}{{ iface.speed_mbps }} Mbps{% else %}-{% endif %}</td>
+                                        <td>{% if iface.get('speed_mbps') %}{{ iface.get('speed_mbps') }} Mbps{% else %}-{% endif %}</td>
                                         <td>{{ iface.get('driver', '-') or '-' }}</td>
                                     </tr>
                                     {% endfor %}
@@ -203,7 +203,7 @@
                             {% if d.get('error') %}
                             <div class="detail-section wide">
                                 <h4>Error</h4>
-                                <p class="error-text">{{ d.error }}</p>
+                                <p class="error-text">{{ d.get('error') }}</p>
                             </div>
                             {% endif %}
                         </div>