Ibrar Aziz -Technology Enthusiast

To initiate the registration process for your Linux machine with Red Hat Subscription Manager, the first step is to log in to the official Red Hat site, where licenses are managed. Access the site at https://access.redhat.com and provide your credentials using GUI (Browser) UserName: ee.ibraraziz@gmail.com Password: ************** Follow these steps to register your system using CLI and make sure in restricted environment following address https://access.redhat.com/* is whitelist so that machine can communicate to the redhat offical site: 1. Register the system using the following command:    >>subscription-manager register    You will be prompted to enter your Red Hat account credentials.      UserName: ee.ibraraziz@gmail.com      Password: ************** After successfully logging in,   Additionally, you may need to provide the Pool ID associated with your subscription. Follow t...

The VMware Tanzu command-line interface (Tanzu CLI) is  a command-line tool that connects you to Tanzu . Just like Kubectl CLI. For example, you can use the Tanzu CLI to: Create and manage management clusters. Create and manage workload clusters. Manage Kubernetes releases The first thing to ensure is that it aligns with or is compatible with the Kubernetes cluster version, just like you would when installing the kubectl client. When working with packages in a Tanzu Kubernetes Cluster (TKC) and utilizing the Tanzu CLI, it becomes highly beneficial for managing packages within the Tanzu Cluster. Installation To obtain the binary corresponding to your cluster version, please use the provided link. To successfully download the binary, you must have access to the VMware portal and select the highlighted version https://customerconnect.vmware.com/en/downloads/details?downloadGroup=TKG-161&productId=988&rPId=99512 After downloading the files, transfer the binaries to the jump h...

Description: This comprehensive description outlines the various configurations and setups required in the context of OpenShift, a popular container orchestration platform. 1.vSphereEnvironment Readiness: Ensure the vSphere environment is properly configured and meets the necessary requirements to deploy OpenShift. This involves setting up the required virtualization infrastructure a.        Hardware Setup physical hardware setup required for the virtualization infrastructure, including server specifications, CPU, memory, and disk requirements. It also covers considerations for high availability and redundancy. b.       Configuration It includes the installation and configuration of the hypervisor software, network settings, and any required optimizations or adjustments to the virtualization environment. SAN storage a.          Switch zoning It involves dividing a storage are...

 Few glimpse of learning for successful DataCenter Migration I am sharing for knowledge purpose. Comprehensive Migration plan Assigned Project Manager/Owner Environment prerequisites Hardware prerequisites Software prerequisites Task prerequisites Key team players (who will be involved in data center relocation?) Key data for every phase of your data center relocation project Back-out plan Planning and Methodical Implementation Label cabling in existing and target data centers Backups complete DBAs and application administrators disable services Turn off and shut down all data center equipment A network administrator checks cabling, switch configuration, and firewall connectivity OS Manager remotely connects to the console to reconfigure the network settings for the service (if not done before shutdown) OS Manager checks the health of the operating system, network connections, and storage Allowable Downtime server, network, storage, and operating system requirements DBAs and applic...

 kubernetes also known as K8s is an open-source system for automating the deployment, scaling and management of containerized applications. "Virtualization makes virtual machines, Docker makes containers, and Kubernetes makes Pods." Benefit Kubernetes Deploy applications and also react to changes. Scale it up and down based on demand. Heal up when things break down. Perform upgrades and rollbacks with zero downtime. Kubernetes Nodes: Kubernetes are made up of two types of nodes [Nodes can be virtual machine or can be a physical machine] 1 .     Worker Node 2.       Master Nodes [Can be called as Control Node/Control Plane/Supervisor Node] Inside every node: ⧪ The basic unit of Kubernetes is POD . 👀   Infromational Note: A pod is the basic execution unit of a Kubernetes application. Each module represents a portion of the workload that runs on your cluster 1. Each pod has its own IP address its an internal IP. 2. A pod can communicate to anothe...

  Jenkins is an open source continuous integration/continuous delivery and deployment (CI/CD) automation software DevOps tool written in the Java programming language. It is used  to implement CI/CD workflows, called pipelines . Devops: DevOps is best explained as people working together to create, build and deliver secure software at the highest speed. DevOps practices enable software developers (devs) and operations (ops) teams to accelerate delivery through automation, collaboration, rapid feedback, and iterative improvement. DevOps represents a change in mindset for IT culture. Based on agile, lean practices and systems theory, DevOps focuses on incremental development and rapid software delivery. Success depends on the ability to create a culture of accountability, better collaboration, empathy and shared responsibility for business results. Process flow: A developer develops an application The developer submits the code to GitLab A reviewer reviews the code and commits ...