I want to create 1000s of SIMILAR PODS? ReplicationController – ReplicasSets – DeploymentStatefulsets – Deamonsets ReplicationController A ReplicationController ensures that a specified number of pod replicas are running at any one time. In other words, a ReplicationController makes sure that a pod or a homogeneous set of pods is always up and available. Replication– ONE PODs would replicate(SCALE) to X number of PODSController– This controller would control #of ACTUAL PODS === #of Desire PODS– If mis-matched – report back to

What is web server ? A web server is software and hardware that uses the Hypertext Transfer Protocol, known as HTTP, and other protocols that respond to request from clients that is being made on the World Wide Web. The main work is that the webserver performs is to display the content of the website, which it does by storing, then processing, and eventually delivering the webpages to the user who has requested it.  Types of the web server ?

Login to you twilio conlsole application and go to whatsapp section Using Twilio Phone Numbers with WhatsApp On WhatsApp, users message each other using phone numbers. To send and receive WhatsApp messages using the Twilio Programmable Messaging API, you’ll need a phone number as well. The Twilio API addresses WhatsApp users and your numbers, using the following prefixed address format: whatsapp:<E.164 formatted phone number> Enabling WhatsApp with a Twilio Number To use WhatsApp messaging in production apps, you must enable

Troubleshooting and Debugging Commands: explain Documentation of resources describe Show details of a specific resource or group of resources logs Print the logs for a container in a pod attach Attach to a running container exec Execute a command in a container port-forward Forward one or more local ports to a pod cp Copy files and directories to and from containers. auth Inspect authorization run Run a particular image on the cluster explain Documentation of resources — describe Show details

Kubernetes run PODS Atomic Unit of Work Scheduling is POD in kubernetes Pod get instansciated from Kubelet Pod contains one or more container e.g docker Pod get assignment of IP from kube proxy Worker may have one or multiple pods Pods is Scheduled to kubelet by Schedular Pods are EMPHERAL. Same POD can not be run. Similar pods you may get PODS is running state as long as “All Container” is running/succeded. Pods has state from PEDNING -> RUNNING ->

CODE EDITOR Code editors are the software that is designed usually to help developers for coding. These are the text editors with some additional functionalities to manage and edit code. It can be a part of an IDE. By Using the code editor can improve the speed of coding. Which editor you will use for coding? From my openion i will personally use vs code for codding it provides lots of functionalities and easy to use. What is the most

By Akhil Features of Kubernetes Automated rollouts and rollbacks Storage orchestration Self-healing Service discovery and load balancing Batch execution Horizontal scaling Container grouping using pod Auto scalability DNS management Resource monitoring and logging How Kubernetes Works ? What are the components of Master? Master has 4 components API Server Scheduler Controller-Manager etcd What are the components of worker node ? kubelet kube-proxy POD which inturn has containers Components of Workstation kubectl json/yaml file creation

Kubernetes Lab Day5-Suresh Master Node : WorkerNode

Master API Server Cluster store  (ETCD)   Controller manager Scheduler Worker Kubler Docker Kube-proxy Workstation kubectl

What is POD ?

What are the 10 feature of kubernetes? How kubernetes works? What are the components of Master? explain in one line sentense What are the components of Worker/Node/Agent What are the components of Workstation?

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What are the 10 feature of kubernetes? Automated Scheduling Self-Healing Capabilities Automated rollouts & rollback Horizontal Scaling & Load Balancing Offers environment consistency for development, testing, and production Infrastructure is loosely coupled to each component can act as a separate unit Provides a higher density of resource utilization Offers enterprise-ready features Application-centric management Auto-scalable infrastructure You can create predictable infrastructure How kubernetes works? Kubernetes clusters are comprised of one master node(control plane) and a number of worker nodes. These nodes

One or more containers application or service Basic unit of work Unit of scheduling Ephemeral Atomicity Intra POD communication Inter POD communication Containers run inside of pods Pods can have multiple containers All containers in pod share the pod environment Tight Coupling Loose coupling Pod networking – each POD has an IP address(Kube-proxy) Pod status – ready, pending, running and success/failed Pods deployment – via higher level objects

What is POD ? It has one or more containers It’s your application or service It’s the most basic unit of work Unit of scheduling Ephemeral – no POD is ever “redeployed” Atomicity – They are there or NOT PODS can communicate through network. POD get an IP address by kube-proxy Load balance connects to POD’s as POD have IP address NOT containers POD is running until we have containers are running inside it All containers in POD have the

Features of Kubernetes: Automated scheduling Self healing capability Storage orchestration Automated rollbacks Bin packing Scaling Load balancing Resource utilization Portability secret and config management How kubernetes works? Kubernetes clusters are comprised of one master node(control plane) and a number of worker nodes. These nodes can either be physical computers or virtual machines, depending on the cluster. The master node controls the state of the cluster; for example, which applications are running and their corresponding container images. Components of Master Node:

What are the 10 feature of kubernetes?1.self healing2.Rolling update and rollback3.Auto scalability4.Combinations of container in Pod5.Manages container workload and services6.health checking7.speed deployment8.ability to absorb chnages quickly9.ability to recover quickly10.hide complexity in cluster How kubernetes works?By implementation of cluster with combinations of both control node and worker nodes, What are the components of Master? explain in one line sentense1.API server: it is an cluster gateway.2.cluster storage: it stores all data from API server(etcd)3.conroller manager:it is responsible to make sure all current