first commit

Dockerfile

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+FROM python:latest
+WORKDIR /usr/local/bin
+COPY pinger.py .
+CMD ["python","-u","pinger.py"]

docker-compose.yaml

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+version: '3.8'
+
+services:
+  meshmqtt:
+    restart: unless-stopped
+    build:
+      context: .

pinger.py

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+import os
+import time
+import smtplib
+from email.mime.text import MIMEText
+
+def send_email_alert(ip_address):
+    smtp_server = "mail.smtp2go.com"
+    smtp_port = 587
+    smtp_username = "pinger"
+    smtp_password = "Qix46X7aPhvIZwrk"
+    sender_email = "pinger@pattinson.org"
+    receiver_email = "james@pattinson.org"
+    subject = "ALERT: EGFH gateway unreachable"
+    body = f"The server with IP {ip_address} has been unreachable for over 5 minutes."
+    
+    msg = MIMEText(body)
+    msg["Subject"] = subject
+    msg["From"] = sender_email
+    msg["To"] = receiver_email
+    
+    try:
+        with smtplib.SMTP(smtp_server, smtp_port) as server:
+            server.starttls()
+            server.login(smtp_username, smtp_password)
+            server.sendmail(sender_email, receiver_email, msg.as_string())
+        print("Alert email sent.")
+    except Exception as e:
+        print(f"Failed to send email: {e}")
+
+def ping_host(ip_address):
+    response = os.system(f"ping -c 1 {ip_address} > /dev/null 2>&1")
+    return response == 0
+
+def monitor(ip_address, timeout=300, check_interval=10):
+    downtime_start = None
+    print(f"Starting monitor process on {ip_address}")
+    
+    while True:
+        if ping_host(ip_address):
+            downtime_start = None  # Reset downtime if host is reachable
+        else:
+            if downtime_start is None:
+                downtime_start = time.time()
+            elif time.time() - downtime_start > timeout:
+                send_email_alert(ip_address)
+                downtime_start = None  # Reset after sending email
+                time.sleep(timeout)  # Avoid spamming alerts
+        
+        time.sleep(check_interval)
+
+if __name__ == "__main__":
+    monitor("192.168.24.1")  # Replace with the actual IP