Docker

Install Docker Engine on CentOS Stream 9

Docker is an open-source platform that allows you to develop, build, deploy, test, manage and run applications in containers. Containers are standardized units that include libraries, system tools, code, and runtime to run software or application.

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Openshfit

Red Hat OpenShift backing up etcd

etcd is a consistent, open-source and distributed key-value store used in Kubernetes to backing all cluster resources like: configuration data, state data or metadata.
Regular backups of etcd database are crucial habit for Kubernetes clusters. Red Hat OpenShift has build-in mechanism to achieve that.

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Openshfit

Red Hat OpenShift Single Node – Assisted Installer

Red Hat OpenShift Container Platform is a container Kubernetes platform. With OpenShift, organizations can automate application deployment and management.
RH Openshift can be run in a private cloud infrastructure directly on the bare metal servers and on the virtualization platforms like VMware, Nutanix or Openstack. Also, it’s possible to install OCP in the public clouds like AWS, Azure, GCP or Alibaba.

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vSphere

Backup and restore ESXi host configuration data using command line

In some cases we need to reinstall ESXi host. To avoid time consuming setting up servers, we can quickly backup and restore host configuration. To achieve this, there are three possible ways: ESXi command line, vSphere CLI or PowerCLI

In this article I will show how backup and restore host configuration data using ESXi command line.

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Aria

Monitoring TKGs cluster using VMware Aria Operations

VMware Aria Operations (ex vROps Operations) is a powerful tool for monitoring infrastructure, virtual machines, predict resource demands or costs. Use cases is much more. One of them is ability to visualize, provide logs and information from the Tanzu Kuberentes Grid clusters. To obtain insightful data from the nodes you need to use dedicated addon – Management Pack for Kubernetes.

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