To see the current version that your cluster is on, type:
$ oc get clusterversion NAME VERSION AVAILABLE PROGRESSING SINCE STATUS version 4.3.0-0.0 True False 10h Cluster version is 4.3.0-0.0
Each release version is represented by a set of images. To see basic release information and a list of those images, type:
$ oc adm release info Name: 4.0.0-0.7 Digest: sha256:641c0e4f550af59ec20349187a31751ae5108270f13332d1771935520ebf34c1 Created: 2019-03-05 13:33:12 -0500 EST OS/Arch: linux/amd64 Manifests: 248 Release Metadata: Version: 4.0.0-0.7 Upgrades: 4.0.0-0.6 Metadata: description: Beta 2 Component Versions: Kubernetes 1.13.4 Images: NAME DIGEST aws-machine-controllers sha256:630e8118038ee97b8b3bbfed7d9b63e06c1346c606e11908064ea3f57bd9ff8e cli sha256:93e16a8c56ec4031b5fa68683f75910aad57b54160a1e6054b3d3e96d9a4b376 cloud-credential-operator sha256:bbc8d586b2210ac44de554558fd299555e72fb662b6751589d69b173b03aa821 …
To see the Operators managed on the control plane by the Cluster Version Operator, type:
$ oc get clusteroperator NAME VERSION AVAILABLE PROGRESSING DEGRADED SINCE cluster-autoscaler True False False 10h cluster-storage-operator True False False 10h console True False False 10h dns True False False 10h image-registry True False False 10h ingress True False False 10h kube-apiserver True False False 10h kube-controller-manager True False False 10h kube-scheduler True False False 10h machine-api True False False 10h machine-config True False False 10h marketplace-operator True False False 10h monitoring True False False 156m network True False False 139m node-tuning True False False 10h openshift-apiserver True False False 19m openshift-authentication True False False 10h openshift-cloud-credential-operator True False False 10h openshift-controller-manager True False False 10h openshift-samples True False False 10h operator-lifecycle-manager True False False 10h
While most of the Cluster Operators listed provide services to the {product-title} cluster, the machine-config Operator in particular is tasked with managing the {op-system} operating systems in the nodes.