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fix(docs): describe MetalLB configuration via CRDs rather than configMap (#8821)

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Signed-off-by: Philipp Born <mail@philipp-born.eu>
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Philipp B 2022-07-13 11:53:37 +02:00 committed by GitHub
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31
docs/deploy/baremetal.md
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@ -33,7 +33,7 @@ MetalLB can be deployed either with a simple Kubernetes manifest or with Helm. T
was deployed following the [Installation][metallb-install] instructions.
MetalLB requires a pool of IP addresses in order to be able to take ownership of the `ingress-nginx` Service. This pool
can be defined in a ConfigMap named `config` located in the same namespace as the MetalLB controller. This pool of IPs **must** be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server.
can be defined through `IPAddressPool` objects in the same namespace as the MetalLB controller. This pool of IPs **must** be dedicated to MetalLB's use, you can't reuse the Kubernetes node IPs or IPs handed out by a DHCP server.
!!! example
Given the following 3-node Kubernetes cluster (the external IP is added as an example, in most bare-metal
@ -47,22 +47,29 @@ can be defined in a ConfigMap named `config` located in the same namespace as th
host-3 Ready node 203.0.113.3
```
After creating the following ConfigMap, MetalLB takes ownership of one of the IP addresses in the pool and updates
After creating the following objects, MetalLB takes ownership of one of the IP addresses in the pool and updates
the *loadBalancer* IP field of the `ingress-nginx` Service accordingly.
```yaml
apiVersion: v1
kind: ConfigMap
---
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
name: default
namespace: metallb-system
name: config
data:
config: |
address-pools:
- name: default
protocol: layer2
addresses:
- 203.0.113.10-203.0.113.15
spec:
addresses:
- 203.0.113.10-203.0.113.15
autoAssign: true
---
apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
name: default
namespace: metallb-system
spec:
ipAddressPools:
- default
```
```console