===== MetalLB Bare Metal =====
Sugindo esta instalação do kubernetes: [[kubernetes_install_debian_v2|Instalação Kubernetes]]

<code bash>
$ kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml
namespace/metallb-system created
customresourcedefinition.apiextensions.k8s.io/addresspools.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bfdprofiles.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bgpadvertisements.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bgppeers.metallb.io created
customresourcedefinition.apiextensions.k8s.io/communities.metallb.io created
customresourcedefinition.apiextensions.k8s.io/ipaddresspools.metallb.io created
customresourcedefinition.apiextensions.k8s.io/l2advertisements.metallb.io created
serviceaccount/controller created
serviceaccount/speaker created
role.rbac.authorization.k8s.io/controller created
role.rbac.authorization.k8s.io/pod-lister created
clusterrole.rbac.authorization.k8s.io/metallb-system:controller created
clusterrole.rbac.authorization.k8s.io/metallb-system:speaker created
rolebinding.rbac.authorization.k8s.io/controller created
rolebinding.rbac.authorization.k8s.io/pod-lister created
clusterrolebinding.rbac.authorization.k8s.io/metallb-system:controller created
clusterrolebinding.rbac.authorization.k8s.io/metallb-system:speaker created
secret/webhook-server-cert created
service/webhook-service created
deployment.apps/controller created
daemonset.apps/speaker created
validatingwebhookconfiguration.admissionregistration.k8s.io/metallb-webhook-configuration created
</code>

<code bash>
$ kubectl get all -n metallb-system -o wide
NAME                              READY   STATUS    RESTARTS   AGE    IP               NODE           NOMINATED NODE   READINESS GATES
pod/controller-577b5bdfcc-pc8zk   1/1     Running   0          100s   10.246.228.194   k-node-01      <none>           <none>
pod/speaker-22pmg                 1/1     Running   0          100s   177.75.176.35    k-node-01      <none>           <none>
pod/speaker-kcjjr                 1/1     Running   0          100s   177.75.176.34    k-ctrl-pl-01   <none>           <none>
pod/speaker-ljm2b                 1/1     Running   0          100s   177.75.176.36    k-node-02      <none>           <none>

NAME                      TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE    SELECTOR
service/webhook-service   ClusterIP   10.96.203.215   <none>        443/TCP   100s   component=controller

NAME                     DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE    CONTAINERS   IMAGES                            SELECTOR
daemonset.apps/speaker   3         3         3       3            3           kubernetes.io/os=linux   100s   speaker      quay.io/metallb/speaker:v0.13.7   app=metallb,component=speaker

NAME                         READY   UP-TO-DATE   AVAILABLE   AGE    CONTAINERS   IMAGES                               SELECTOR
deployment.apps/controller   1/1     1            1           100s   controller   quay.io/metallb/controller:v0.13.7   app=metallb,component=controller

NAME                                    DESIRED   CURRENT   READY   AGE    CONTAINERS   IMAGES                               SELECTOR
replicaset.apps/controller-577b5bdfcc   1         1         1       100s   controller   quay.io/metallb/controller:v0.13.7   app=metallb,component=controller,pod-template-hash=577b5bdfcc
</code>

<file yaml metallb-config.yaml>
$ vim metallb-config.yaml
---
apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: first-pool
  namespace: metallb-system
spec:
  addresses:
  - 2804:694:3000:8000::1c0/122
</file>

<file bash>
$ kubectl apply -f metallb-config.yaml
</file>

<file bash>
$ kubectl get IPAddressPool -n metallb-system
NAME         AUTO ASSIGN   AVOID BUGGY IPS   ADDRESSES
first-pool   true          false             ["2804:694:3000:8000::1c0/122"]
</file>

<file bash>
$ kubectl describe IPAddressPool first-pool -n metallb-system
Name:         first-pool
Namespace:    metallb-system
Labels:       <none>
Annotations:  <none>
API Version:  metallb.io/v1beta1
Kind:         IPAddressPool
Metadata:
  Creation Timestamp:  2023-02-03T23:15:12Z
  Generation:          1
  Managed Fields:
    API Version:  metallb.io/v1beta1
    Fields Type:  FieldsV1
    fieldsV1:
      f:metadata:
        f:annotations:
          .:
          f:kubectl.kubernetes.io/last-applied-configuration:
      f:spec:
        .:
        f:addresses:
        f:autoAssign:
        f:avoidBuggyIPs:
    Manager:         kubectl-client-side-apply
    Operation:       Update
    Time:            2023-02-03T23:15:12Z
  Resource Version:  17307
  UID:               5abb168e-f1ea-432e-8dd8-dbe19c733709
Spec:
  Addresses:
    2804:694:3000:8000::1c0/122
  Auto Assign:       true
  Avoid Buggy I Ps:  false
Events:              <none>
</file>

===== Referências =====

  - [[https://metallb.universe.tf/installation/|Installation]]
  - [[https://metallb.universe.tf/configuration/|Configuration]]