Middleware Manager

The Middleware Manager is a microservice that provides a web-based interface for defining, assigning, and managing Traefik middlewares, router settings, custom services, and plugins. It watches resources from either a Pangolin API or a direct Traefik API and generates Traefik dynamic configuration files to apply overrides and customizations.

Key Features

• Dual data-source support: integrate with a Pangolin API or connect directly to a Traefik API
• Middleware management: create, update, delete and attach Traefik middlewares with explicit priorities
• Service management: define custom Traefik services (LoadBalancer, Weighted, Mirroring, Failover) and assign them to resources
• Advanced router configuration: configure entrypoints, TLS SANs, TCP SNI rules, custom request headers, and router priorities
• Plugin hub: discover, install, and manage Traefik plugins from the UI
• Generates Traefik provider files (file-based dynamic configuration) and ensures correct cross-provider references
• Template libraries: pre-configured middleware and service templates for common patterns
• Real-time synchronization with the chosen data source and a responsive web UI (dark mode available)
• Persistence: stores configuration and state in an SQLite database
• Broad middleware support: ForwardAuth, BasicAuth, Headers, RateLimit, IP whitelisting, path manipulation, and more

Use Cases

• Enforce authentication, security headers, and access controls across services behind Traefik
• Apply rate limiting, IP allowlists, or custom routing rules without editing Traefik provider files manually
• Manage complex router/service overrides and install plugins centrally in Traefik or Pangolin-based stacks

Limitations and Considerations

• Persists to SQLite by default, which may not be optimal for very large or highly concurrent deployments
• Relies on file-based dynamic configuration and network access to the Traefik/Pangolin APIs; proper file mounts and API connectivity are required
• Plugin management depends on the Traefik plugin ecosystem and compatible Traefik versions

The Middleware Manager simplifies applying consistent middleware and routing policies across Traefik-managed resources, providing a central UI and template-driven workflow for common proxy configuration tasks.