Merge pull request #32 from codeperfectplus/features/prometheus_support

Features/prometheus support

Author: codeperfectplus

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,31 +8,27 @@ assignees: ''
 ---
 
 **Describe the bug**
+
 A clear and concise description of what the bug is.
 
 **To Reproduce**
+
 Steps to reproduce the behavior:
-1. Go to '...'
-2. Click on '....'
-3. Scroll down to '....'
-4. See error
 
 **Expected behavior**
+
 A clear and concise description of what you expected to happen.
 
 **Screenshots**
+
 If applicable, add screenshots to help explain your problem.
 
-**Desktop (please complete the following information):**
+**(please complete the following information):**
+
  - OS: [e.g. iOS]
  - Browser [e.g. chrome, safari]
- - Version [e.g. 22]
-
-**Smartphone (please complete the following information):**
- - Device: [e.g. iPhone6]
- - OS: [e.g. iOS8.1]
- - Browser [e.g. stock browser, safari]
- - Version [e.g. 22]
+ - Systemguard version [e.g. 22]
 
 **Additional context**
+
 Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -8,13 +8,17 @@ assignees: ''
 ---
 
 **Is your feature request related to a problem? Please describe.**
+
 A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
 
 **Describe the solution you'd like**
+
 A clear and concise description of what you want to happen.
 
 **Describe alternatives you've considered**
+
 A clear and concise description of any alternative solutions or features you've considered.
 
 **Additional context**
+
 Add any other context or screenshots about the feature request here.

.gitignore

@@ -164,3 +164,8 @@ cython_debug/
 
 predefine_user.json
 src/assets/predefine_user.json
+
+influxdb_data
+prometheus_config
+*.yml
+prometheus_config/prometheus.yml

README.md

@@ -2,6 +2,7 @@
 
 System Guard is a Flask app designed to monitor server stats such as CPU, Memory, Disk, and Network. It also provides real-time monitoring capabilities which can be useful for system administrators, developers, and DevOps engineers to keep track of their server's performance and troubleshoot issues. The app uses the `psutil` library to retrieve system stats and the `speedtest-cli` library to perform a network speed test.
 
+
 ## Features 🚀
 
 - Lightweight, open-source, and free to use with a straightforward installation process, out-of-the-box monitoring solution.
@@ -18,22 +19,15 @@ System Guard is a Flask app designed to monitor server stats such as CPU, Memory
 - Role-based dashboards tailored for Developer, Admin, IT Manager, and Manager roles (upcoming feature).
 - Update security updates with a single click or automatically update to the latest version to simplify maintenance.
 
-## Old Features 🚀
-
-- Administrators can manage user accounts by creating, updating, or deleting users.
-- Admin-level access is required for configuring settings, managing users, and adjusting security and notification - preferences.
-- Historical performance data can be viewed as charts, aiding in trend analysis.
-- Supports network speed testing directly from the server.
-- Provides the ability to terminate resource-heavy processes with a single command.
-- Real-time server metric monitoring keeps data consistently updated.
-- The interface is responsive and optimized for various devices including mobile, tablets, and desktops.
-- The system can automatically update to the latest version to simplify maintenance.
-- Installation can be done quickly via a bash script for easy setup.
-- Notifications are sent to users and admins when a process is manually terminated.
-- Offers website monitoring tasks that trigger email alerts when a website becomes unavailable.
-- Configurable email alerts for various actions across the server.
-- Option to download historical data in CSV format for detailed analysis (upcoming feature).
-- Server status monitoring with alerts for server downtime or recovery (upcoming feature).
+## Architecture 🏗️
+
+![SystemGuard-Architecture](/src/docs/images/SystemGuard-Architecture.jpg)
+
+## Tech Stack 🛠️
+
+- **Frontend**: JavaScript, Bootstrap, Chart.js, Grafana
+- **Backend**: Python, Flask, SQLAlchemy, SQLite, Prometheus, InfluxDB
+- **Monitoring**: psutil, speedtest-cli, nmap, netstat
 
 ## Get started 🛠️
 

app.py

@@ -1,13 +1,10 @@
 from src.config import app
 from src import routes
-from src.background_task import start_website_monitoring, monitor_settings
-import os
+from src.background_task import start_background_tasks
+
+# Start the background tasks
+start_background_tasks()
 
-# background thread to monitor system settings changes
-print("FLASK_ENV: ", os.getenv('FLASK_ENV'))
-if os.getenv('FLASK_ENV') == 'production':
-    monitor_settings()  # Starts monitoring for system logging changes
-    start_website_monitoring()  # Starts pinging active websites
 
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=5000, debug=True)

requirements.txt

@@ -23,4 +23,13 @@ watchdog==5.0.2
 requests==2.32.3
 
 # Speedtest CLI for testing internet speed
-speedtest-cli==2.1.3 
+speedtest-cli==2.1.3 
+
+# prometheus client for monitoring
+prometheus_client==0.20.0
+
+# influxdb-client, optional for writing metrics to InfluxDB
+# influxdb-client==1.46.0
+
+# pyyaml for parsing YAML configuration files
+pyyaml==6.0.2

setup.sh

@@ -853,10 +853,12 @@ start_server() {
 
 # Install function
 install() {
+    create_dir "$EXTRACT_DIR"
+    # PROMETHEUS_INSTALL_SCRIPT
     message_box "$APP_NAME Installer $INSATLLER_VERSION" 0
-    message_box "Welcome on board: $(echo "$USER_NAME" | sed 's/.*/\u&/')" 3
+    message_box "Welcome on board: $(echo "$USER_NAME" | sed 's/.*/\u&/')" 0
     check_dependencies
-    create_dir "$EXTRACT_DIR"
+    
     message_box "Choose the installation method\nNote: Release is recommended for production use." 0
     message_box "1. Release (More Stable Version)\n2. Git Repository (Pre-Release Version)\n3. Source Code (Current Directory)" 0
 
@@ -878,6 +880,11 @@ install() {
         exit 1
         ;;
     esac
+        PROMETHEUS_INSTALL_SCRIPT=$(find "$EXTRACT_DIR" -name prometheus.sh) || {
+        log "ERROR" "Prometheus installation script not found."
+        exit 1
+    }
+    sudo -u "$USER_NAME" bash "$PROMETHEUS_INSTALL_SCRIPT"
     start_server
     message_box "The $APP_NAME server is running at $HOST_URL" 0
     # open_browser

src/background_task/__init__.py

@@ -1,4 +1,19 @@
+import os
 from src.background_task.monitor_website import start_website_monitoring
 from src.background_task.log_system_info import monitor_settings
+from src.background_task.external_monitoring import fetch_file_metrics_task
+from src.logger import logger
 
-__all__ = ["start_website_monitoring", "monitor_settings"]
+
+
+def start_background_tasks():
+    """
+    Starts the background tasks for the application.
+    """
+    if os.getenv('FLASK_ENV') == 'production':
+        logger.info("Starting background tasks for production environment.")
+        start_website_monitoring()
+        fetch_file_metrics_task()
+        monitor_settings()
+    else:
+        logger.info("Background tasks are not started in development environment.")

src/background_task/external_monitoring.py

@@ -0,0 +1,52 @@
+from flask import Flask, Response
+from prometheus_client import Gauge, generate_latest
+import os
+import time
+from src.models import ExternalMonitornig
+from src.config import app
+import threading
+from src.logger import logger
+
+# Define a Gauge metric with a label 'key' to store multiple values from the file
+file_metric = Gauge('external_metrics', 'Value read from file for each key', ['key'])
+
+def read_file_and_update_metric(file_path: str) -> None:    
+    """Reads a file and updates metrics based on its content."""
+    if os.path.exists(file_path):
+        with open(file_path, 'r') as file:
+            for line in file:
+                try:
+                    key, value = line.strip().split(':')
+                    file_metric.labels(key.strip()).set(float(value.strip()))
+                except ValueError as ve:
+                    logger.error(f"Value error processing line '{line}': {ve}")
+                except Exception as e:
+                    logger.error(f"Error processing line '{line}': {e}")
+    else:
+        logger.warning(f"File {file_path} does not exist")
+
+def fetch_file_metrics(sleep_duration: int = 5) -> None:
+    """Background task to read file paths from the database and update metrics."""
+    while True:
+        with app.app_context():
+            file_paths = ExternalMonitornig.query.all()
+            current_keys = {sample.labels['key'] for sample in file_metric.collect()[0].samples}
+            new_keys = set()
+
+            for file_path in file_paths:
+                logger.info(f"Reading file: {file_path.file_path}")
+                read_file_and_update_metric(file_path.file_path)
+                new_keys.update({key.strip() for line in open(file_path.file_path) for key in line.split(':')[0].strip()})
+
+            # Remove metrics for keys that are no longer in the database
+            for key in current_keys:
+                if key not in new_keys:
+                    file_metric.remove(key)
+
+        time.sleep(sleep_duration)
+
+def fetch_file_metrics_task() -> None:
+    """Starts the background task in a separate thread."""
+    thread = threading.Thread(target=fetch_file_metrics)
+    thread.daemon = True
+    thread.start()