OpenShift Route of the Ingress 4

In OpenShift 4 supplied by Ingress Operator (clusteroperator called ingress of) the Kubernetes of Ingress Controller Object (default named default ingresscontroller) and maintain its life cycle, if the default is ingresscontroller be deleted, Ingress Operator will automatically rebuild the new ingresscontroller instance of an object. The Ingress Operator OpenShift may be supplied to one or more of Ingress Controller based HAProxy implemented external traffic routing stack requests.

Route functional differences Kubernetes default Igress and OpenShift to achieve the following:

The default view is named ingress of clusteroperator

$ oc get clusteroperators ingress
NAME      VERSION   AVAILABLE   PROGRESSING   DEGRADED   SINCE
ingress   4.2.8     True        False         False      21d

The default view is named default ingresscontroller

$ oc get ingresscontroller -n openshift-ingress-operator
NAME      AGE
default   21d
$ oc describe ingresscontroller/default -n openshift-ingress-operator
Name:         default
Namespace:    openshift-ingress-operator
Labels:       <none>
Annotations:  <none>
API Version:  operator.openshift.io/v1
Kind:         IngressController
Metadata:
  Finalizers:
    ingresscontroller.operator.openshift.io/finalizer-ingresscontroller
  Generation:        2
  Resource Version:  24859
Spec:
  Replicas:  1
Status:
  Available Replicas:  1
  Domain:                  apps-crc.testing
  Endpoint Publishing Strategy:
    Type:    HostNetwork
  Selector:  ingresscontroller.operator.openshift.io/deployment-ingresscontroller=default

ingresscontroller expand the number of instances of default

$ oc patch ingresscontroller/default --patch '{"spec":{"replicas": 3}}' --type=merge -n openshift-ingress-operator
ingresscontroller.operator.openshift.io/default patched

View Ingress Operator logs

$ oc logs deployments/ingress-operator -n openshift-ingress-operator

View running route of the project

Wherein Pod run function based on the Route of HA-Proxy.

$ oc get all -n openshift-ingress
NAME                                  READY   STATUS    RESTARTS   AGE
pod/router-default-746d57f6d8-p7fct   1/1     Running   2          21d

NAME                              TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)                   AGE
service/router-internal-default   ClusterIP   172.30.145.3   <none>        80/TCP,443/TCP,1936/TCP   21d

NAME                             READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/router-default   1/1     1            1           21d

NAME                                        DESIRED   CURRENT   READY   AGE
replicaset.apps/router-default-746d57f6d8   1         1         1       21d