Whats New v2

What's New in v2.0.0

DockMon v2.0.0 is a complete rewrite with modern architecture, advanced monitoring capabilities, and a beautiful new React-based UI.

🎨 Modern User Interface

Complete React Rewrite

• Built with React 18 + TypeScript + Vite
• Beautiful dark theme using Tailwind CSS and shadcn/ui
• Fully responsive - works on desktop, tablet, and mobile
• Real-time updates via WebSocket
• Smooth animations and loading states

Enhanced Dashboard

• Multiple view modes: Grid, Grouped by host, Compact grouped
• Group by tags: Organize by Compose projects, custom tags, or no grouping
• KPI widgets: System status at a glance
• Real-time sparklines: CPU, memory, network charts per container
• Smart filtering: Instant filter by host, state, tags
• Bulk selection: Multi-select containers for batch operations

User Preferences

• Persistent settings: Your view preferences saved per user
• Dashboard layout: Your chosen view mode and grouping remembered
• Filter persistence: Last used filters restored on page load
• Dark theme: Optimized for long monitoring sessions

🚨 Advanced Alert System

Flexible Alert Rules

• Metric-driven alerts: Monitor CPU, memory, disk usage with thresholds
• Event-driven alerts: Container stopped, health check failures, updates available
• Smart targeting: Alert on all resources, specific selections, or tag-based filters
• Alert deduplication: Prevent spam with configurable cooldowns and occurrence thresholds

Multi-Channel Notifications

• 6 notification channels: Telegram, Discord, Slack, Pushover, Gotify, SMTP
• Custom templates: Override default messages per rule or globally
• Exponential backoff: Automatic retry with intelligent backoff on failures
• Channel management: Enable/disable channels, test before saving

Alert Management

• Alert history: View all fired alerts with filtering
• Alert annotations: Add notes and context to alerts
• Auto-resolve: Automatically resolve alerts when conditions clear
• Snooze alerts: Temporarily silence specific alerts
• Suppression: Suppress alerts during container updates

🔄 Container Update Management

Update Detection

• Automatic checking: Daily checks for new container images
• Floating tag tracking: Monitor latest, stable, or semantic versions
• Multi-registry support: DockerHub, GHCR, and custom private registries
• Update status: Clear indication of which containers have updates

Update Policies

• Pattern-based rules: Allow, warn, or block updates by pattern
• Built-in categories: Pre-configured patterns for databases, proxies, critical services
• Custom patterns: Create your own update validation rules
• Compose-aware: Optionally skip Docker Compose containers

Update Execution

• One-click updates: Update containers with a single click
• Batch updates: Update multiple containers simultaneously
• Progress tracking: Real-time progress for each update
• Automatic rollback: Rollback on failure with backup creation
• Update alerts: Get notified when updates complete or fail

Private Registry Support

• Encrypted credentials: Store registry credentials securely
• Multiple registries: DockerHub, GHCR, custom registries
• Per-image auth: Automatic authentication per container

🏥 HTTP Health Checks

Custom Health Monitoring

• HTTP/HTTPS endpoints: Monitor web services and APIs
• Flexible configuration: Custom headers, auth, timeouts, SSL verification
• Method support: GET, POST, HEAD requests
• Expected status codes: Define success criteria (200, 200-299, etc.)

Health Check Features

• Auto-restart integration: Restart containers after consecutive failures
• Alert integration: Trigger alerts on health check failures
• History tracking: Success/failure counts and response times
• Status dashboard: Visual health indicators per container

🎯 Container Organization

Tagging System

• Auto-derived tags: Automatically extract from Docker Compose labels
• Custom tags: Add your own organizational tags
• Bulk tagging: Apply tags to multiple containers at once
• Tag-based filtering: Quickly find containers by tag
• Tag-based alerting: Create alerts targeting specific tags

Desired State Tracking

• Should Run: Containers that should always be running
• On-Demand: Containers that run as needed
• Alert severity: Different alert rules for different container types

🏢 Multi-Host Management

Host Organization

• Host tagging: Organize hosts with custom tags (prod, staging, region)
• Bulk operations: Add, edit, delete multiple hosts
• Security status: Visual indicators for mTLS-secured connections
• Host metrics: CPU, memory, disk usage per Docker host
• System info: OS version, Docker version, daemon uptime

Enhanced Host Views

• Host drawer: Quick overview without leaving the page
• Host modal: Detailed view with containers, events, metrics
• Connection status: Real-time connection monitoring
• Container count: See containers per host at a glance

📅 Blackout Windows

Scheduled Maintenance

• Blackout periods: Suppress alerts during planned maintenance
• Recurring schedules: Daily, weekly, or one-time windows
• Visual indicators: Banner shows when blackout is active
• Flexible timing: Configure start/end times and days of week

🔐 Security Enhancements

Authentication & Authorization

• Session-based auth: Secure HTTP-only session cookies
• Password management: Change password from user menu
• Rate limiting: Protection against brute force attacks
• API security: All endpoints require authentication

Encrypted Storage

• Registry credentials: Private registry passwords encrypted at rest
• Secure transmission: All communication over HTTPS
• mTLS support: Client certificate authentication for Docker hosts

📖 Event Logging & Audit Trail

Comprehensive Event System

• Event categories: Container, host, system, alert, notification events
• Event correlation: Related events linked with correlation IDs
• Rich filtering: Filter by category, severity, host, container, time
• Full-text search: Search across event titles and messages
• Real-time updates: Events appear instantly via WebSocket

Event Details

• Performance metrics: Event timing for debugging
• Context information: Full details for troubleshooting
• Export capability: Download events for analysis

📦 Container Details Enhancement

Tabbed Interface

• Info tab: Ports, volumes, environment, restart policy
• Updates tab: Update status, policies, execution
• Health Check tab: HTTP health check configuration
• Alerts tab: Alerts specific to this container
• Events tab: Container-specific event history
• Logs tab: Real-time container logs with filtering

Live Logs

• Real-time streaming: See logs as they happen
• Log filtering: Filter by keywords
• Auto-scroll: Follow mode for live monitoring
• Multi-container: View logs from multiple containers

🔧 Technical Improvements

Backend Architecture

• Event bus: Decoupled event processing
• Batch job manager: Queue-based batch operations
• Stats history: Historical data for sparkline charts
• Composite keys: Proper multi-host container identification
• Async Docker SDK: Non-blocking Docker operations
• Database migrations: Alembic-based schema management

Frontend Architecture

• React Query: Intelligent caching and background refetch
• Type safety: Full TypeScript coverage with strict mode
• Component library: Reusable shadcn/ui components
• Adaptive polling: Efficient polling with visibility API
• WebSocket reconnection: Automatic reconnection with backoff

Performance Optimizations

• 50% fewer API calls: Intelligent caching with React Query
• WebSocket updates: No constant polling needed
• Lazy loading: Container details loaded on demand
• Optimized rendering: Virtual scrolling for large lists
• Async wrappers: Non-blocking Docker SDK calls

🎁 Quality of Life Improvements

• Toast notifications: Instant feedback for all actions
• Loading skeletons: Better perceived performance
• Keyboard shortcuts: Navigate faster (coming in v2.1)
• Persistent filters: Your filters remembered
• Smart defaults: Sensible default configurations
• Error messages: Clear, actionable error descriptions

🐛 Bug Fixes from v1

• Fixed container ID collision issues with composite keys
• Fixed memory leaks in stats monitoring
• Fixed WebSocket reconnection race conditions
• Fixed alert deduplication edge cases
• Fixed timezone handling for timestamps
• Improved error handling throughout

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Ready to upgrade? See the Installation Guide to get started!

Questions? Join the Discussions or check the FAQ.