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  1. # Deploy MetalLB into Kubespray/Kubernetes
  2. MetalLB hooks into your Kubernetes cluster, and provides a network load-balancer implementation.
  3. In short, it allows you to create Kubernetes services of type "LoadBalancer" in clusters that
  4. don't run on a cloud provider, and thus cannot simply hook into paid products to provide load-balancers.
  5. This addon aims to automate [MetalLB in layer 2 mode](https://metallb.universe.tf/concepts/layer2/)
  6. or [MetalLB in BGP mode][https://metallb.universe.tf/concepts/bgp/].
  7. It deploys MetalLB into Kubernetes and sets up a layer 2 or BGP load-balancer.
  8. ## Install
  9. In the default, MetalLB is not deployed into your Kubernetes cluster.
  10. You can override the defaults by copying the contents of roles/kubernetes-apps/metallb/defaults/main.yml
  11. to somewhere in inventory/mycluster/group_vars such as inventory/mycluster/groups_vars/k8s-cluster/addons.yml
  12. and updating metallb_enabled option to `true`.
  13. In addition you need to update metallb_ip_range option on the addons.yml at least for suiting your network
  14. environment, because MetalLB allocates external IP addresses from this metallb_ip_range option.