Install MetalLB Operator

Create the MetalLB Operator namespace:

cat << EOF | oc apply -f -
apiVersion: v1
kind: Namespace
metadata:
  name: metallb-system
EOF

Verify the namespace is created:

oc get ns metallb-system  -o custom-columns=Name:.metadata.name,Status:.status.phase

Sample output

Name             Status
metallb-system   Active

Create the OperatorGroup:

cat << EOF | oc apply -f -
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  name: metallb-operator
  namespace: metallb-system
EOF

Confirm the OperatorGroup is installed in the namespace:

oc get operatorgroup -n metallb-system

Sample Output

NAME               AGE
metallb-operator   5s

Subscribe to the metallb Operator:

cat << EOF| oc apply -f -
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  name: metallb-operator-sub
  namespace: metallb-system
spec:
  channel: stable
  name: metallb-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace
EOF

Confirm the metallb installplan is in the namespace:
```
oc get installplan -n metallb-system
```

Confirm the metallb operator is installed:

oc get clusterserviceversion -n metallb-system -o custom-columns=Name:.metadata.name,Phase:.status.phase

Repeat the query until the Phase is Succeeded.

Sample Output

Name                                    Phase
metallb-operator.v4.13.0-202404030309   Succeeded

Track the progress using below command:

while ! (oc get clusterserviceversion -n metallb-system -o custom-columns=Name:.metadata.name,Phase:.status.phase | grep metallb-operator | grep Succeeded); do oc get clusterserviceversion -n metallb-system; sleep 5; done

Create a single instance of a metallb resource:

cat << EOF | oc apply -f -
apiVersion: metallb.io/v1beta1
kind: MetalLB
metadata:
  name: metallb
  namespace: metallb-system
EOF

Verify that the deployment for the controller is running:
```
oc get deployment -n metallb-system controller
```

Repeat the command until AVAILABLE is 1

Sample Output

NAME         READY   UP-TO-DATE   AVAILABLE   AGE
controller   1/1     1            1           21s

Verify that the daemon set for the speaker is running:

oc get daemonset -n metallb-system speaker

Sample Output

oc get daemonset -n metallb-system speaker
NAME      DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE
speaker   6         6         6       6            6           kubernetes.io/os=linux   55s

Reference: see Installing the MetalLB Operator in the RHOCP Networking guide