Kubernetes Cluster High Availability Setup | Production-Ready HA in Germany & Berlin

Highly available, fault-tolerant Kubernetes clusters for production workloads in Germany and Berlin

When Kubernetes is running a few internal apps, a simple single-node or single-zone setup can be enough.

Once it powers core products, customer-facing platforms, or internal systems that must not go down, you need real high availability – not just "a few replicas". We design and implement production-grade, highly available Kubernetes clusters for companies in Germany, the EU, and worldwide:

We work with engineering teams across Germany — including Berlin, Frankfurt, Munich, Hamburg and other regions — helping them build reliable, scalable and secure systems.

When You Need a High-Availability Kubernetes Cluster

  • core revenue systems run on Kubernetes (SaaS, fintech, e-commerce, industrial platforms)
  • strict SLAs (99.9% or higher) with contractual penalties are in place
  • downtime directly blocks production lines, financial flows, or critical operations
  • you are preparing for audits, certifications, or enterprise partnerships
  • single node or single-zone clusters already caused incidents or near-misses

Automation eliminates these risks completely.

We help you move from "it works most of the time" to predictable, documented, and testable reliability.

What We Deliver

HA Cluster Architecture & Design

We start with a clear, documented architecture tailored to your stack and hosting strategy:

  • Single cloud, multi-AZ (e.g. Frankfurt-region zones on AWS/GCP/Azure/Hetzner)
  • Hybrid setups (on-prem + cloud) with VPN/Direct Connect
  • Control plane redundancy and node pool design
  • Network design: ingress controllers, load balancers, internal vs external traffic
  • Data layer strategy: stateful workloads, storage classes, backup/restore patterns

Control Plane & Worker Node High Availability

We harden the core of your Kubernetes platform:

  • multiple control plane nodes (where the platform allows it)
  • separation of system and application node pools
  • autoscaling policies aligned with your workloads and budget
  • PodDisruptionBudgets and anti-affinity rules to avoid "all replicas on one node"
  • graceful node draining and update strategies

Multi-Zone, Self-Healing Workloads

Kubernetes can reschedule pods automatically – but only if the cluster and manifests are designed correctly. We configure:

  • multi-AZ node pools and topology-aware scheduling
  • health checks (readiness/liveness probes) that reflect actual application behaviour
  • horizontal and/or vertical pod autoscaling where it makes sense
  • deployment strategies: rolling updates, canary/blue-green where needed

Storage, Backups & Disaster Recovery

High availability without a backup strategy is an illusion. We implement:

  • storage classes for stateful workloads with replication where supported
  • consistent backup strategies (Velero or similar tools)
  • backup & restore procedures for etcd, databases, and critical services
  • disaster recovery runbooks: what to do if a region goes down or a cluster is lost

Observability, Alerts & SLOs

A Kubernetes cluster is only as reliable as your ability to see what is happening. We set up:

  • metrics (Prometheus or compatible stack)
  • dashboards (Grafana) for cluster health, workloads, and business KPIs
  • logging stack (Loki / ELK / cloud-native logging)
  • alerting integrated with your channels (Slack, Teams, email, on-call tools)
  • basic SLOs (e.g. availability of key services, error budgets, latency thresholds)

Security & Compliance for German/EU Requirements

For many clients in Germany and the EU, reliability must go hand in hand with compliance. We ensure:

  • cluster setup aligned with GDPR requirements
  • preference for Frankfurt-region or EU data centers (AWS/GCP/Azure/Hetzner)
  • RBAC and least-privilege access for teams and services
  • secrets management via external vaults or cloud-native solutions
  • audit logs and documented changes for infrastructure and workloads

So your Kubernetes HA setup can be shown to partners, auditors, and enterprise customers with confidence.

How a Typical Engagement Looks

  1. 1Assessment & Architecture (1–2 weeks) — review of your current infrastructure, clusters, and workloads; identification of failure modes, SPOFs, and existing incidents; design of target HA architecture with clear diagrams and decisions. Deliverable: architecture document & implementation plan.
  2. 2Implementation & Hardening — provisioning of HA clusters (managed or self-managed); configuration of node pools, autoscaling, and networking; rollout of observability stack and initial alerts; migration or deployment of your workloads into the new setup. Deliverable: production-ready HA Kubernetes cluster.
  3. 3Handover, Training & Operations Support — documentation tailored to your team; runbooks for incidents, updates, and scaling events; optional training sessions for engineering/DevOps teams; optional ongoing support for operations and future improvements. Deliverable: team that can operate and evolve the platform.

A Kubernetes platform where nodes can fail, zones can go offline, and your workloads stay available.

For German companies, this turns delivery and operations into a predictable, automated and auditable process instead of a manual, error-prone one.

Expected Results

production-grade HA Kubernetes cluster
99.9%+ uptime with automated failover
self-healing workloads across multiple zones
comprehensive observability and alerting
disaster recovery procedures tested and documented
compliance-ready infrastructure for German/EU requirements
team enabled to operate and scale the platform

This is why growth-focused teams in Germany choose our Kubernetes HA solutions to support their product roadmap.

Platforms & Tools We Work With

Managed Kubernetes

EKS, GKE, AKS, Hetzner Cloud, DigitalOcean, others

On-prem / Hybrid

kubeadm-based clusters, Rancher, K3s/K3d (for edge), OpenShift (on request)

Observability Stack

Prometheus, Grafana, Alertmanager, Loki/ELK, Sentry

Who This Service Is For

We typically work with:

SaaS and platform teams preparing for scale or enterprise clients
Fintech and financial services with strict uptime and compliance requirements
Industrial and manufacturing companies where Kubernetes runs internal tools, portals, or automation
Companies with legacy infrastructure migrating onto Kubernetes and needing a reliable foundation from day one

Related Case Studies

See how we implemented similar projects

Related Services

These services might also be of interest to you

Upgrade Your Kubernetes Platform

Upgrade your Kubernetes platform from "works most of the time" to "designed for failure and resilience". We'll review your current setup, highlight the main risks, and propose a concrete HA architecture for your workloads.