Kubernetes Cluster

A production-ready Kubernetes deployment with distributed storage, advanced networking, and enterprise-grade reliability.

Cluster Architecture

Our Kubernetes cluster is built on bare-metal infrastructure with a focus on high availability, performance, and operational simplicity. The entire deployment is managed through Ansible automation, enabling consistent, repeatable cluster builds.

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Control Plane

High-availability control plane with etcd distributed database

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Worker Nodes

Scalable compute resources for running containerized workloads

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Storage Layer

Rook Ceph provides distributed, replicated block and file storage

Core Components

Container Runtime: containerd

Industry-standard container runtime providing the foundation for running containerized applications with optimal performance and security.

  • • OCI-compliant container execution
  • • Image management and distribution
  • • Namespace isolation
  • • Resource control with cgroups

Networking: Calico

High-performance network plugin providing secure pod-to-pod communication, network policies, and BGP routing capabilities.

  • • Layer 3 networking with BGP
  • • Network security policies
  • • IP address management (IPAM)
  • • Native support for 10GbE infrastructure

Storage: Rook Ceph

Cloud-native storage orchestrator providing self-managing, self-scaling, and self-healing storage services with 3x data replication.

  • • Block storage (RBD) for databases
  • • Shared filesystem (CephFS)
  • • Object storage (S3-compatible)
  • • Automatic data replication and recovery

Load Balancing: MetalLB

Bare-metal load balancer implementation enabling Kubernetes services to receive external IP addresses in non-cloud environments.

  • • Layer 2 mode for local networks
  • • BGP mode for advanced routing
  • • IP address pool management
  • • LoadBalancer service type support

Deployment Features

High Availability

  • • Multi-master control plane
  • • Distributed etcd cluster
  • • Pod disruption budgets
  • • Node failure tolerance

Security

  • • TLS certificate management
  • • Role-based access control (RBAC)
  • • Network policy enforcement
  • • Pod security standards

Observability

  • • Metrics collection with Prometheus
  • • Centralized logging
  • • Resource monitoring dashboards
  • • Cluster health checks

Automation

  • • Ansible-driven deployment
  • • GitOps workflow integration
  • • Automated cluster upgrades
  • • Infrastructure as Code

Production Ready

This Kubernetes cluster configuration has been tested and optimized for production workloads. The combination of bare-metal performance, enterprise storage, and comprehensive automation makes it suitable for:

  • ✓ Stateful applications and databases
  • ✓ High-performance computing workloads
  • ✓ Multi-tenant application hosting
  • ✓ CI/CD pipeline execution
  • ✓ Microservices architectures
  • ✓ Development and testing environments