Install NMState Operator

Create the nmstate Operator namespace:

cat << EOF | oc apply -f -
apiVersion: v1
kind: Namespace
metadata:
  labels:
    kubernetes.io/metadata.name: openshift-nmstate
    name: openshift-nmstate
  name: openshift-nmstate
spec:
  finalizers:
  - kubernetes
EOF

Verify the namespace is created:

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

Sample output

Name                Status
openshift-nmstate   Active

Create the OperatorGroup:

cat << EOF | oc apply -f -
apiVersion: operators.coreos.com/v1
kind: OperatorGroup
metadata:
  annotations:
    olm.providedAPIs: NMState.v1.nmstate.io
  name: openshift-nmstate
  namespace: openshift-nmstate
spec:
  targetNamespaces:
  - openshift-nmstate
EOF

Confirm the OperatorGroup is installed in the namespace:

oc get operatorgroup -n openshift-nmstate

Sample output

NAME                AGE
openshift-nmstate   5s

Subscribe to the nmstate Operator:

cat << EOF| oc apply -f -
apiVersion: operators.coreos.com/v1alpha1
kind: Subscription
metadata:
  labels:
    operators.coreos.com/kubernetes-nmstate-operator.openshift-nmstate: ""
  name: kubernetes-nmstate-operator
  namespace: openshift-nmstate
spec:
  channel: stable
  installPlanApproval: Automatic
  name: kubernetes-nmstate-operator
  source: redhat-operators
  sourceNamespace: openshift-marketplace
EOF

Confirm that NMstate operator is running. Repeat this command until you see the desired output:

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

Sample output

Name                                              Phase
kubernetes-nmstate-operator.4.13.0-202402211707   Succeeded

Use below command to track the progress:

while ! (oc get clusterserviceversion -n openshift-nmstate  -o custom-columns=Name:.metadata.name,Phase:.status.phase | grep kubernetes-nmstate-operator | grep Succeeded); do oc get clusterserviceversion -n openshift-nmstate; sleep 2; done

Create instance of the nmstate operator:

cat << EOF | oc apply -f -
apiVersion: nmstate.io/v1
kind: NMState
metadata:
  name: nmstate
EOF

Confirm that the instance for the nmstate operator is created:
```
oc get nmstates
```
Sample output
```
NAME      AGE
nmstate   2s
```

Reference: see Installing the Kubernetes NMState Operator in the RHOCP Networking guide