v1.0.0

Initial stable release of bash-sys-monitor, a lightweight, modular suite of shell scripts designed for high-availability monitoring of Ubuntu Server 24+.

Core Features

• Proactive system performance monitoring (high-load.sh) focused on resource saturation using a combination of Load Average and Pressure Stall Information (PSI).
• Real-time security auditing (login.sh) by tracking the wtmp log for user access events.

Architecture & Integrations

• Modular plugin-based architecture separating core scripts, communication senders, message templates, and state.
• Native multi-channel alerting drivers for Matrix, Telegram, and ntfy.
• Support for plain text and HTML formatted alerts, including automated file uploads for system process lists.
• Advanced notifier filtering via command-line flags in systemd units.

Technical Foundation

• Strict runtime configuration validation covering domain structures, IP formatting, and specific sender token schemas.
• Robust URL encoding and sanitized input handling to ensure secure API communications.
• Accurate per-CPU process sampling using top to capture system state during high-load events.
• Automated CI/CD pipeline with shellcheck, shfmt, and comprehensive BATS test suites.