c12s-kubespray/roles/kubernetes-apps/metallb/README.md
Kenichi Omichi 25bab0e976
Change MetalLB to one of addons (#6238)
This changes MetalLB contrib to one of addons for deploying MetalLB with
Kubernetes cluster deployment. By the default, Kubespray doesn't deploy
MetalLB addon.
2020-06-29 15:11:59 -07:00

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# Deploy MetalLB into Kubespray/Kubernetes
MetalLB hooks into your Kubernetes cluster, and provides a network load-balancer implementation.
In short, it allows you to create Kubernetes services of type "LoadBalancer" in clusters that
don't run on a cloud provider, and thus cannot simply hook into paid products to provide load-balancers.
This playbook aims to automate [this](https://metallb.universe.tf/concepts/layer2/).
It deploys MetalLB into Kubernetes and sets up a layer 2 load-balancer.
## Install
Defaults can be found in contrib/metallb/roles/provision/defaults/main.yml.
You can override the defaults by copying the contents of this file to somewhere in inventory/mycluster/group_vars
such as inventory/mycluster/groups_vars/k8s-cluster/addons.yml and making any adjustments as required.
MetalLB allocates external IP addresses from this ip_range option, so you need to update this ip_range option
at least for suiting your network environment.
```
ansible-playbook --ask-become -i inventory/sample/hosts.ini contrib/metallb/metallb.yml
```