Free VMware vSphere with Tanzu Specialist 5V0-23.20 Exam Questions

VMware Harbor Registry

VMware Harbor Registry is an enterprise-class registry server that stores and distributes container images. Harbor allows you to store and manage images for use with VMware Tanzu Kubernetes Grid Integrated Edition (TKGI).

Overview

Harbor extends the open source Docker Distribution by adding the functionalities usually required by an enterprise, such as security, identity, and management. As an enterprise private registry, Harbor offers enhanced performance and security. Deploying a registry alongside the TKGI environment improves image management efficiency.

For a Supervisor Cluster that is configured with the vSphere networking stack, you can provide Layer 2 isolation for your Kubernetes workloads by creating Workload Networks and assigning them to namespaces. Workload Networks provide connectivity to Tanzu Kubernetes clusters in the namespace and are backed by distributed port groups on the switch that is connected to the hosts in the Supervisor Cluster.

https://docs.vmware.com/en/VMware-vSphere/7.0/vmware-vsphere-with-tanzu/GUID-A7756D67-0B95-447D-A645-E2A384BF8135.html

ATanzu Kubernetescluster provisioned by theTanzu Kubernetes Grid Servicesupports two CNI options: Antrea (default) and Calico. Both are open-source software that provide networking for cluster pods, services, and ingress.

Tanzu Kubernetesclusters provisioned by theTanzu Kubernetes Grid Servicesupport the followingContainer Network Interface(CNI) options:

Antrea

Calico

Explanation

Tanzu Kubernetes Grid Service CNI

Tanzu Kubernetes Grid Service supports Antrea and Calico as container network interfaces (CNI).

The default CNI in vSphere 7 Update 1 is Antrea.

Antrea is a VMware-supported, open source, Kubernetes-native project that implements the container network interface (CNI) and Kubernetes network policy, providing network connectivity and security for pod workloads. Antrea extends the benefit of programmable networks from Open vSwitch (OVS) to Kubernetes.

For more information about Antrea, see https://antrea.io/

Deleting Artifact:

When an artifact is not referenced by any OCI index, you can delete the artifact freely which will delete its manifest and all associated tags.

When an artifact is referenced by an OCI index, you cannot delete it. In order to delete this artifact, you must first delete all OCI indexes referencing this artifact first, remembering that an artifact can be referenced by multiple parents artifacts pushed onto Harbor by different users. So when deleting an OCI index holding 9 children artifacts not referenced by any other index and 1 child artifact referenced by another index, only 9 out of 10 children artifacts will be deleted.

To delete any artifact in the Harbor interface, click on the artifact and select 'Delete' and confirm.

Not Purge: As a vSphere administrator, you can purge the images for a project in the private image registry by request from DevOps engineers. Purging images from the private image registry deletes all references to the images made by pods, but it does not remove the images from the image registry.

vSphere Pods are only supported on Supervisor Clusters that use NSX-T Data Center as their networking stack.

Resource Management. vSphere DRS handles the placement of vSphere Pods on the Supervisor Cluster.