check_pyhttps

A Nagios Plugin to check for an endpoint's HTTP status codes. This can be any website, either http or https.

Features

• Checks HTTP and HTTPS endpoints
• Supports custom port specification
• Configurable OK, WARNING, and CRITICAL status codes
• IPv4 and IPv6 support
• Adjustable connection timeout
• Option to disable SSL certificate warnings

Requirements

• Python 3.8+
• Requests==2.32.3
• urllib3==2.2.2

Installation

1. Ensure Python 3.8 or higher is installed on your system.

2. Install the required dependencies inside a virtual environment, or system-wide:

   # install inside a virtual environment
   python3 -m venv venv
   source venv/bin/activate
   pip install -r requirements.txt
   
   # or system-wide with your package manager, example:
   sudo dnf install python3-requests
   sudo dnf install python3-urllib3
   

3. Download the check_pyhttps.py script to your Nagios plugins directory or any other location accessible by Nagios.

4. Make the script executable:

   chmod +x check_pyhttps.py
   

Usage

./check_pyhttps.py [-h] [--http] [-o OK] [-w WARN] [-c CRITICAL] [-t TIMEOUT] [--disable-ssl-warnings] host [port]

Options

• host: IP address or DNS name to check (required)
• port: Port number (optional)
• --http: Use HTTP instead of HTTPS
• -o OK, --ok OK: Comma-separated list of OK status codes (default: 200,201,204)
• -w WARN, --warn WARN: Comma-separated list of WARNING status codes (default: 301,302)
• -c CRITICAL, --critical CRITICAL: Comma-separated list of CRITICAL status codes (default: 400,401,403,404,409,410,500,501,502,503,504)
• -t TIMEOUT, --timeout TIMEOUT: Timeout in seconds (default: 10)
• --disable-ssl-warnings: Disable SSL certificate warnings

Examples

1. Check HTTPS on default port (443):

   ./check_pyhttps.py example.com
   

2. Check HTTP on port 8080:

   ./check_pyhttps.py example.com 8080 --http
   

3. Custom status codes and timeout:

   ./check_pyhttps.py example.com -o 200,201 -w 301,302,307 -c 404,500 -t 5
   

4. Disable SSL warnings:

   ./check_pyhttps.py example.com --disable-ssl-warnings
   

License

Distributed under the MIT License. See LICENSE.md file for more information.