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MetalLB

Purpose: For platform engineers, network engineers, documents the MetalLB service in openCenter-gitops-base.

metallb provides LoadBalancer service support on clusters that do not have a native cloud load balancer. In this repository it is deployed as a Helm release in metallb-system.

What This Repo Deploys

  • Namespace/metallb-system with privileged Pod Security labels

  • HelmRelease/metallb

  • Base values Secret: metallb-values-base

  • Optional override Secret: metallb-values-override

When to Use It

  • You run bare-metal or private cloud clusters without a managed load balancer.

  • You want stable IPs for ingress controllers, gateways, or other edge services.

  • You want Layer 2 or BGP-based service advertisement managed inside Kubernetes.

Key Integration Points

  • Gateway API, ingress controllers, and service meshes often depend on MetalLB-provided IPs.

  • IP pools and BGP peers are usually cluster-local manifests, not base values.

Example

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: public-pool
  namespace: metallb-system
spec:
  addresses:
    - 192.0.2.100-192.0.2.120

Configuration Surfaces

  • Service path: applications/base/services/metallb/

  • Namespace: metallb-system

  • Flux object: HelmRelease/metallb

  • Base values Secret: metallb-values-base

  • Override values Secret: metallb-values-override

  • ../../operations/services/metallb.md[MetalLB Configuration Guide]

Upstream References