Docker Images Repository

Our Docker Images Repository is a comprehensive collection of custom-built, production-ready Docker images designed to power Raspiska Tech's infrastructure. These images are optimized for performance, security, and reliability, providing a solid foundation for our microservices architecture.

Architecture Overview

Key Features

Our Docker images repository provides several key features that enhance our infrastructure deployment and management:

1. Optimized Base Images

   • Redis with Sentinel for high availability caching
   • Valkey (Redis-compatible alternative) with enhanced performance
   • PostgreSQL with custom configurations for optimal performance

2. Service-Specific Images

   • Kong API Gateway with custom plugins and configurations
   • Keycloak Identity and Access Management solution
   • n8n workflow automation platform

3. Monitoring & Observability Images

   • Prometheus for metrics collection and alerting
   • Grafana for visualization and dashboarding
   • Uptime Kuma for status monitoring

Redis with Sentinel

Our Redis with Sentinel Docker image provides a robust, high-availability solution for caching and in-memory data storage. The image includes:

• Redis 7.x with AOF and RDB persistence
• Redis Sentinel for automatic failover
• Configurable memory limits and eviction policies
• Password authentication and security features
• Comprehensive health checks

Valkey with Sentinel

As an alternative to Redis, we also maintain a Valkey-based image with similar high-availability features. Valkey is a Redis-compatible fork that offers enhanced performance and additional features while maintaining full compatibility with Redis clients.

PostgreSQL Database

Our PostgreSQL Docker image is optimized for performance and security, featuring:

• PostgreSQL 15 with custom configuration
• PgBouncer for connection pooling
• pgAdmin for web-based administration
• Automated daily backups with configurable retention
• Custom user accounts and role-based access control
• Integration with Prometheus for monitoring

Kong API Gateway

Our Kong API Gateway image provides a powerful and flexible gateway for managing APIs, featuring:

• High-performance API routing
• Authentication and authorization plugins
• Rate limiting and request transformation
• Microservice routing and load balancing
• Integration with Keycloak for identity management

Keycloak Identity and Access Management

The Keycloak image provides a complete identity and access management solution:

• Single Sign-On (SSO) across all applications
• User management and authentication
• Social login and identity brokering
• Multi-factor authentication
• Role-based access control

Monitoring Stack

Our monitoring stack includes:

• Prometheus for metrics collection and storage
• Grafana for visualization and dashboarding
• Alertmanager for alert handling and notification
• Various exporters for collecting metrics from different services

Deployment and Usage

Deploying our Docker images is straightforward using Docker Compose:

version: '3.8'

services:
  redis:
    image: raspiska/redis-sentinel:latest
    environment:
      - REDIS_PASSWORD=secure_password
      - REDIS_MAXMEMORY=2gb
      - SENTINEL_QUORUM=2
    ports:
      - "6379:6379"
      - "26379:26379"
    volumes:
      - redis_data:/data
    networks:
      - raspiska_network

  postgres:
    image: raspiska/postgresql:latest
    environment:
      - POSTGRES_PASSWORD=secure_password
      - POSTGRES_DB=app_database
      - PGBOUNCER_POOL_MODE=transaction
    ports:
      - "5432:5432"
      - "6432:6432"
    volumes:
      - postgres_data:/var/lib/postgresql/data
    networks:
      - raspiska_network

  prometheus:
    image: raspiska/prometheus:latest
    ports:
      - "9090:9090"
    volumes:
      - prometheus_data:/prometheus
    networks:
      - raspiska_network

volumes:
  redis_data:
  postgres_data:
  prometheus_data:

networks:
  raspiska_network:
    driver: bridge

Benefits

Using our custom Docker images provides several benefits:

1. Consistency: Identical environments across development, testing, and production
2. Security: Hardened images with security best practices applied
3. Performance: Optimized configurations for maximum performance
4. Reliability: High-availability setups with automated failover
5. Maintainability: Centralized updates and patch management

Future Enhancements

We are continuously improving our Docker images with plans to add:

1. Multi-architecture support (ARM64/AMD64)
2. Enhanced security scanning and vulnerability patching
3. Additional service images for our expanding infrastructure
4. Automated testing and continuous integration pipelines
5. Comprehensive documentation and usage examples