K9s (canine) is a command-line based UI utility (terminal + vim + K8s) to navigate, observe and manage your applications and monitoring Kubernetes clusters. It provides a visual interface that allows users to view and manage their Kubernetes resources, such as pods, deployments, and services, in a more intuitive and user-friendly way compared to using the “kubectl” command-line tool. I have been using k9s in my 5g unity cloud Kubernetes cluster deployment, where…
Technology
Openstack Controller Node Migration Virtual To Physical
Recently I was working for a customer in Asia Pacific region in “Technology Strategy” department for building 5g core network (Kubernetes cluster) on Openstack 16.2. “Chief Technology Officer (CTO)” requested us to evaluate options for deploying Openstack controllers on physical baremetal node, a methodology to migrate from virtual to baremetal node. Through our lab trials we were able to develop a methodology to accomplish these tasks .In previous blog https://bit.ly/3slLXck…
Deploying MetalLB Load-balancer For Bare Metal Kubernetes Clusters
In my previous blog http://bit.ly/3ZbG5QY ,we saw the deployment of Kubernetes cluster using Ansible playbooks. I have used same playbooks to create a new Kubernetes cluster for demonstrating the MetalLB load balancer. MetalLB is a very popular, free and open-source load balancer. I have deployed it as a component in 5g core networks. MetalLB create Kubernetes services of type LoadBalancer, and provides network load-balancer implementation in on-premise clusters (Baremetal deployments),…
Overview Of ISTIO Mesh
Recently I was working on a private 5g deployment, a military project for one of the nations in Europe. My task was to deploy Kubernetes cluster where we deploy a group of microservices federation, that together perform a Cloud-Native Network Function (CNF). The deployment was segregated in 2 types, 5g Application components and PaaS. Our main application components for core network were fed-nrf, Network Function Repository, fed-amf Access & Mobility…
Deploy Kubernetes Using Ansible
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Kubernetes Node Labels
Labels are mechanism we use to organize the Kubernetes objects. A label is Key-Value pair without any predefined meaning. Labeling can be done with declarative method (using manifest file) or imperative method (using cli). Usually scheduler will automatically do reasonable placement of pods. however with node tagging and label selectors we can specify pods to run on specific nodes considering factors like SSD,CPU,MEMORY,STORAGE or DATA Center location. We can group…
Deployment of RHOSP 16.1 with for Virtualized Controllers-Part2
In our first part https://bit.ly/3slLXck we covered Red Hat® enterprise virtualization deployment, created 1 VM installed with RHEL 8.2 for undercloud deployment and Skelton for running 3 virtual controllers. Let us start the deployment of Undercloud and overcloud nodes. We create Undercloud.conf file and Instack.json files. The input like MAC address, Interface names comes from the Virtual machines we created in previous steps. Our control plane interface is enp2s0, which…
Deployment of RHOSP 16.1 with for Virtualized Controllers-Part1
Deployment of RHOSP 16.1 with for Virtualized Controllers In this blog we demonstrate to deploy overcloud controllers as virtual machines in a Red Hat Virtualization cluster. This article might provide the audience with additional insights and tips that will help to succeed in deploying Red Hat OSP 16.1 with virtualized controller. We are building private cloud for “PoC” and documenting best practices for RHOSP 16.1 deployment gained through our experience.…
RHOSP Openstack Deployment 16.1
Its been 4 weeks now we have started deploying RHOSP16.1,the latest version of Red Hat Openstack. Through this blog I would like to describe some of the experience we gained. This article might provide the audience with additional insights and tips that will help to succeed.…
Provisioning NFS based Persistent Volume in Kubernetes
Traditionally we have shared storage, across the nodes using NFS/iSCSCI at the operating system level. Kubernetes comes with concept of PV and PVC, lets discuss this briefly before we start deploying NFS and associate with our Kubernetes cluster. Containers are immutable , when container shutdown all the data is lost. This behaviour may not be suitable for some applications like database where application needs to share the data with other…