Hasini and Avyukths Sanskriti Youtube Channel Launched

Basic Sanskrit Slokas/Prayers:

 Ganesha 

shuklAmbara- dharam vishnum

shashivarnam chatur bhujam

prasanna vadanam DhyAyet

sarva Vighnopa ShAntaye

vakra tunda mahAkAya

koti surya (surya koti) sama prabha

Nirvighnam kurumay deva

sarva kAryeshu sarvadA

Guru 

gurur brahma gurur vishnuhu

gurur devo maheshvaraha

gurussAkshAt para brahma

tasmai sri gurave namaha

akhanda mandalAkAram

vyAptam yena charAcharam

tatpadam darshitam yena

tasmai srE gurave namaha

Raghavendra 

PoojyAya rAghavendrAya

satya dharma ratAya cha

BhajatAm kalpavrikshAya

namatAm kAmadhenave

Adi shankara

shruthi smrithi purAnAnAm

Alayam karunAlayam

namAmi bhagavatpAdam

shankaram lOka shankaram

Saraswathi 

Saraswathi namasthubhyam

varade kamarUpini

vidyArambham karishyAmi

siddhir bhavatu may sadA

DakshinAmUrthi 

Gurave sarva lOkAnAm

Bhishaje bhavarOginAm

Nidhaye sarva vidyAnAm

dakshinAmUrtaye namaha

HayagrEva

gnyAnAnanda mayam devam

nirmala sphatikAkritim

AdhAram sarva vidyAnAm

hayagrEvam upAsmahey

Vishnu 

sashankha chakram sakirEta kundalam

sapEtha vastram sarasEruhekshanam

sahAra vakshasthala shObhi koustubham

namAmi vishnum sirasA chaturbhujam

Krishna 

KrishnAya vAsudevAya

devakE nandanAya cha

nandagOpa kumArAya

gOvindAya namo namaha

Rama 

srE rAma Chandra charanou sirasA namAmi

srE rAma Chandra charanou vachasA grinAmi

srE rAma Chandra charanou manasA smarAmi

srE rAma Chandra charanou sharnanam prapadye

srE rAma rAma rAmeti

rame rAme mano rAme

sahasra nAma tattulyam

rAma nAma varAnane

NavagrahA 

AdityAyacha SomAya

MangalAya BudhAya Cha

Guru shukrah shanibhyascha

rAhave ketave Namaha

Devi 

Sarva-mangala-mAngalye

shive sarvArtha-sAdhike

sharanye trayambake gauri

nArAyani Namostute

AnnapUrne Sada pUrne

Shankara PrAnavallabhe

gnyAna vairAgya sidhyartham

bhikshAm Dehi cha PArvati

Lakshmi 

namastestu mahAmAye

sree peethey surapUjithe

shankha chakra gadA hasthe

mahAlakshmi namOstuthe

Hanuman 

buddhir balam yasho dhairyam

nirbhayatvam arOgatA

ajAdyam vAk patuthvam cha

HanUmath Smaranath Bhaveth

ManOjavam mAruta tulya vegam

jitheyndriyam budhimatAm varishtam

vAtAtmajam vAnara-yUtha-mukhyam

srE rAmadUtam sharanam prapadye

(OR) Sri RamadUtam ShirasA namAmi

Shiva 

mrutyunjayAya rudrAya nElakantAya shambhave

amriteshAya sharvAya mahAdevAya te namaha

bhaktha priyAya tripurAnthakAya

PinAkine dushta harAya nithyam

prathyaksha lElAya manushya loke

Sree vaidyanAthAya namasivAya

Subrahmanya 

shadAnanam chandana lepithAngam

mahOrasam, divya mayUra vAhanam,

rudrasya sUnum sura loka nAtham

brahmanya devam sharanam prapadye

Kubernetes for beginners - Kubernetes and Container Orchestration Introduction

                             
     

In this series of posts you will learn all the important concepts of kubernetes starting with what container orchestration and kubernetes are.


 Let's say we are working on two different micro service applications Product Service and Coupon Service which use a Database server and the product service in turn uses the Coupon Service to get its work done. As a developer or a DevOps engineer the very first step to deploy these applications to test, staging or even production is to create an image or containerize these micro service applications using tools like docker .These images will be based off an operating system and depending on the kind of application you will have Java, NodeJs, etc on top of it. Then if it is a java web application you will have application server and finally your application layer itself. Once you have this image as a developer you can launch one or two containers on your local machine to test your micro services quickly. But for production deployment you will need hundreds and even thousands of these containers up and running.



 That is where container orchestration comes in . Container Orchestration is a process of launching multiple containers or a cluster of containers along with providing various services or non-functional requirements for these micro service applications starting with Fault Tolerance. If one of the containers goes down then there should be a backup or there  should be hundreds of backups for every container in the cluster so that the clients will never see errors coming back.

Second these containers should be automatically scaled based on that demand scale up and scale down. So if there is too much load or  incoming requests that are coming in for a particular micro service automatically that particular container should be scaled up, new instances or new containers should be launched and when the demand goes down those containers should be automatically cleaned up  or destroyed so that the resources are used optimally.

Once these micro services are present on the cluster they should be automatically able to
discover each other over the network and communicate with each other as required. In this case the product service will communicate with the coupon service and both these micro services will communicate with the DB server container as required. Also these applications should be able to access the world outside and other applications outside the cluster should also be able to access these micro services public access should be possible over the network.

 Last and very important piece Rolling updates and Rollbacks this is what makes kubernetes so popular rolling updates meaning if we have a new version of product service lets  say,  we have made some changes to the product service application and now we want to deploy the new version onto the cluster these container orchestration tools will allow us to do that using rolling updates .

That  means  while the applications are rolling we can do the updates so that the clients or the end users will see zero downtime. The way that is possible is - The older version containers will be still be up and running, some of the containers that have  the older version of the software will be still up and running as the new containers come up and slowly as the new containers come up all the traffic will be routed to those new containers and the old containers will be destroyed that is nothing but rolling updates. So that the end users will not see any downtime.

And Rollbacks is a very powerful feature. When a container orchestration tool says that it supports roll backs that means you can roll back to a certain version of the cluster. Every time you do an update to the cluster it will maintain all those versions for you and at some point if you think there is a problem with certain version of coupon service or product service or this DB server you can tell the container orchestration tool like Kubernetes  that I want to go back to a certain version and it will do that for you with a single command. Now that you know what container orchestration is kubernetes is one of the most popular container orchestration tools that gives all of these creating a cluster and all non-functional requirements right out-of-the-box.



 Kubernetes in Greek  means helmsmen or ship pilot. So kubernetes tells us as developers or devops engineers that you have done a great job in containerizing your applications and loading them on to the ship,  now hand them over to me and let me navigate that ship to whichever environment you want so it will create a cluster for our test environment taking all the containers that we give it or it can even create a Prod  cluster for us with simple steps. Kubernetes is also referred to as Kube or K8s because there are eight alphabets between K and eight in kubernetes K and S in kubernetes. And it is pronounced as Kates.  So you can either use Kube as a shortcut or Kates or K8s or Kubernetes, It's up to you.

 Kube makes CI and CD continuous integration and continuous deployment super easy in a way it reverses the entire process .Once you start using kubernetes in our organization the DevOps engineer can simply set up the cluster even for a production environment and just hand that cluster over to a Dev team and then the Dev team can do the production level deployments very easily. That's the power of kubernetes. If not production level deployments at least you can make sure that your application is production ready by deploying your applications or containerized applications onto a Dev cluster or test cluster.

The cloud native computer computing foundation CNCF is responsible for developing and licensing of  kubernetes. Kubernetes or K8s is so popular that all the cloud providers like Google cloud provider,  Azure  or AWS have in build support for kubernetes. Google kubernetes engine is kubernetes support in GCP google cloud. Similarly AWS elastic container service is AWS support for kubernetes .

And  Azure  kubernetes service is the inbuilt kubernetes service within Azure,  so we can use these services right out of the box from these clouds or we can install kubernetes on our laptops we can install kubernetes on the organization's bare-metal servers or we can use the instances  provided by
these cloud providers and install kubernetes from scratch on our own or you can use these ready to use services. So depending on the organization you are working for that will vary. I have seen organizations where they have their own on-premise  bare-metal servers. On top of it they will create their own kubernetes clusters and I have seen organizations which use these service providers and I have seen organizations where they use these cloud providers but they create their own kubernetes cluster on top of these cloud providers instead of using this ready to use services.

Summary:

You have learnt what container orchestration is : Container orchestration is a process of taking the images we create as Devops engineers or developers and launch hundreds and thousands of containers that are required for our production and while doing that while creating that cluster container orchestration process also gives us several non-functional services like
Fault Tolerance, on-demand scalability, these micro service automatically discovering each other they should be able to access the services outside and vice versa. Rolling  updates which is a very powerful feature with zero downtime our applications should be upgraded and if you want to go back to a certain version of the cluster that should be possible through Rollbacks. kubernetes is so popular because it provides all these cluster creation and all these services right out of the box .

 Kubernetes in Greek stands for Hellman which is ship pilot so it tells that you have done a great job loading all your containers onto the ship and that ship over to me and I can navigate it smoothly on to test stage production etc. You  have also learned that you can easily install kubernetes on your local machine to deploy your applications and test them . You can  install kubernetes on a bare-metal server on your organization or onto a cloud like google AWS  ,Azure you can also use inbuilt services available for kubernetes when you use these cloud providers .One important point you have learnt is you can even do production level deployments very easily.  The DevOps engineers will simply create a cluster for you and you as a developer can set up a CICD that will push your applications to that cluster.

New Course Devops Tools and AWS for Java Micro Service Developers course Launched!!

Look at any developer job opening out there, the knowledge of Cloud like AWS and experience with Devops tools like Docker, Kubernetes, Jenkins is a must.In this All In One course you will master all the Devops Tools from GIT all the way to Kubernetes and also AWS Services from EC2 to Cloud Watch to make your MicroService applications Continuous Deployment and Production/Cloud Ready.

Are you a  Developer with Microservices background ? Are you a developer who is just getting started with your career? then this course is for you .You will quickly master all the Devops Tools(Docker, Kubernetes, Jenkins etc) and AWS Services (EC2 ,Elastic Beanstalk,ELB,Auto Scaling and more ) a developer uses.

Enroll now and make the best while the special discounted launch price of 9.99 $ lasts for the next 5 days.Click on the link below to use the coupon.

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One Village One India - Our Charitable Trust Details

If you want to find God, serve man. To reach Narayana you must serve the Daridra Narayanas – the starving millions - Swami Vivekananda

Be a part of One Village One India by Donating or taking up similar work in your locality.

HDFC Bank Account Details for donations:

Name - One Village One India Trust
Account Number - 50200045284791
IFSC Code - HDFC0000060

For more check our website

http://www.onevillageoneindia.org/

Provided water facility to government school in hyderabad

One Village One India has setup a new Submersible Motor to pump drinking water for government school in Vengal Rao nagar Hyderabad which has close to 800 students. There are so many talented kids.Our responsibility is to give them proper facilities that will help them with education and ignite their minds.

Education is the manifestation of the perfection already in man - Swami Vivekananda

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