Author: continuous learner

Installing kubernetes using kube-adm on Azure Prompt you are an kuberenetes expert I’m a begineer in kubernetes I’m trying to install k8s 1.34 using kube-adm with single master and one node my virtual machines are in Azure and both of them are ubuntu 22.04 using CRI which is docker and CNI which is calico. Give… Continue reading DevOps Classroom notes 24/Dec/2025

AWS Network Load Balancer with dynamic ec2 instances. AWS Auto scaling group lets increase and decrease of number of ec2 instances based on rules (cpu utilization) our rule: if average cpu utilization around 70% since to increase i need to generate load we will install a tool called as stress which will artificially increase cpu… Continue reading MultiCloud Classroom notes 23/Dec/2025

Installing kubernetes using kube-adm K8s installation does not contain networking implementations container run time Prompt for CNI you are an kuberenetes expert I’m a begineer in kubernetes I’m trying to install k8s using kube-adm I want to know what are possible CNI and give me an output in tabular format with CNI, purpose and when… Continue reading DevOps Classroom notes 23/Dec/2025

Load Balancing in AWS Layer 4 loadbalancing AWS has a network load balancer which is layer 4 loadbalancer. It understands ip protocol: tcp/udp ports AWS loadbalancers can be internal(private)/external(public) w.r.t compute aws supports auto scaling groups (try later) loadbalancer should forward requests only to healty ec2 instances for this they have health checks for ec2… Continue reading MultiCloud Classroom notes 22/Dec/2025

Kubernetes Google has systems like omega and borg to manage containers. Google has built a system using Go lang which has DNA of omega and borg with a motive to docker in production. Now k8s motive is to take containers to production. K8s Interaction in plain english (desired state) you => I want 10 nginx… Continue reading DevOps Classroom notes 22/Dec/2025

Reverse Proxy A reverse proxy is a server that stands in front of your application servers, recieves all client requests and forwards them to correct backend server Analogy Guest –> Reception Desk –> Room Service –> House Keeping –> Restaurant Why Reverse proxy Problems without Reverse Proxy How Reverse Proxy Helps Client should know every… Continue reading MultiCloud Classroom notes 21/Dec/2025

Story of Phippy Refer Here What does k8s (kubernetes) do: it can create pods it can create clones (replication controllers) it can use labels it can enable communications between pods (services) it can enable storage (Volumes) Phippy goes to Zoo Refer Here pod replicaset secrets deployments Daemonset Ingress cronjobs CRDs

Exercise Time React JS Refer Here Python Refer Here Node JS Refer Here

VPN Connections VPN’s are of two types point to site site to site Multi site to Multi VPC (virtual networks) Virtual WAN (Azure) Cloud global networks connect all infra region edge location AWS Direct Connect and Azure Express Route give direct access to cloud via third party

YAML This is Data description language. YAML uses name-value (key value) just like json Value can be of different forms simple text number boolean complex list/array (plural) map/object syntax: YAML is heavily inspired by python (indentation) <name>: <value> text: name: Avatar Fire and Ash number: runtime: 197 boolean: imax: True or imax: yes list: “`yaml… Continue reading DevOps Classroom notes 18/Dec/2025