4. What is a Pod? What is a Deployment? What is a ReplicaSet in Kubernetes?

[@harishkumarreddy6688]

Your one of the best teacher i have ever seen. Thank you very much 😊

[@NextOpsVideos]

Thanks for your comments 🙏🙏🙏

[@babunarendraprasadbodi]

I have been watching your videos for 2 years, your voice cristal clear and you are very helping nature for who are very poor at less knowledge. In this Kubernetes series you can make videos on kubernetes security as well.

[@NextOpsVideos]

Thank you 🙏

[@chetanatthuluri5745]

hello charan can you please tell about the difference between the kubespray and kubernetes, Actually my friends using the commands like make kubernetes/kubespray/apply and prepare and like this. i need to know the difference between these two.

[@NextOpsVideos]

Kubespray is deployment tool for kubernetes. Kubernetes is a platform.

[@nareshv7797]

Thanks Charan for making the kubernetes series...

[@NextOpsVideos]

Thank you for watching 🙏

[@SagarN-z2w]

Your the best. The way of explaining awesome. Thanks a lot Charan. Please continue the same full series.

[@NextOpsVideos]

Thank you 🙏

[@Rajasekhar-ge1sn]

Good teaching skills bro, really very helpful , and also pls share that documents.

[@SandeepKumar-sw7et]

Hello Sir after creation of file sample_pod.yml tried to deploy , I used the command like below but I'm getting error like 8080 was refused and entered the manifest perfectly but I'm getting this error kubectl apply -f sample_pod.yml "The connection to the server localhost:8080 was refused - did you specify the right host or port?"

[@NextOpsVideos]

It's because you haven't connected to the cluster properly. You need to fetch config file first to connect to the cluster and then try executing the pod.yml

[@Aarosritha]

what will happen if the users were connected to appliction during edit the delpyoment to decrease the replicas.

[@NextOpsVideos]

Automatically redirected to available replicas. Or a very brief downtime will be observed

[@yagantireddy1154]

Hi Annaya, meeru google k8'S cheptunnaru kada, coming to azure k8's architecture diagram cluster create, nods and pods create cheyadam and working process antha same kada. only cloud will be change right?

[@NextOpsVideos]

Same untundi Reddy. Endukante k8s common across any cloud. Hope this helps. Please share the word if you can 🙏

[@gz.98765]

Container means its have a minimal base os to run the service or application. While in pods we are having multiple containers (main+ side car containers). So multiple containers undatam valla base os anedi duplicate avthundi kadha. Anni run avvalsi vastaay . Why we are not including those in single container? Actually container antene oka class of entity to rap essential resources to run an application/service. Alanti appudu POD enduku vachindi ? Konchem clear cheyyandi please

[@manishkannamoney7455]

Superb explanation sir🎉

[@sathish995]

how how can we provide security to kubernetrs clusrer in real time work environment? They way you explains its very clear Thanks

[@NextOpsVideos]

Thanks for watching 🙏 Private clusters or few security policies will be applied.

[@sureshkumar-mt2bn]

when you execute command kubectl get nodes how it is connecting to google kubernetes and fetching data

[@NextOpsVideos]

There is an option in gcp cloud console on gke blade called "connect", from that you can copy the command and execute it from your laptop powershell console. However you need to install the gcp powershell module as well to get it working. Please share the good word about the channel if you can 🙏🙏🙏

[@venkataramanareddy6361]

Hi bro, your video lectures are very good. One small doubt, for e.g. I am having 4 servers (1 Master node and 3 Worker nodes), appudu nenu replicas count enni pedithe better?

[@NextOpsVideos]

Replica count doesn't directly depends on number of nodes. So it can be anything. Thanks for watching! Please share the good word about the channel, if you like the videos.

[@Maheshreddy9010]

You will definitely reach 500k family ❤

[@NextOpsVideos]

Hopefully 🙏

[@sravanthinadimpalli5489]

i aam getting error while creating pod. COuld you please help what to do Error: error when retrieving current configuration of: Resource: "/v1, Resource=pods", GroupVersionKind: "/v1, Kind=Pod" Name: "", Namespace: "default" from server for: "pod.yaml": resource name may not be empty

[@NextOpsVideos]

You didn't mentioned Name for the Pod, if you look at your error Name:"" , it is blank. Sorry for the late reply and thanks for watching the videos. Please do share the good word about the channel if you can.

[@chenaglabhavana]

Hi Charan Azure devops lo kubernetes ela use cheyali

[@NextOpsVideos]

Lab 10 video chudandi. Azure devops labs playlist lo.

[@SURESHCHANDRA5454]

​@NextOps Videos any trainings you will provide bro

[@kaverianil1440]

Excellent Explantion

[@NextOpsVideos]

Thanks Anil for watching 🙏🙏🙏 Please share the good word about the channel if you can 🙏🙏🙏

[@sudhakarsabbana8728]

Hai Charan, shall we practice these things in K8s playground ..?

[@NextOpsVideos]

Yes ofcourse Sudhakar. Thanks for watching 🙏🙏🙏

[@pagantiveeranjaneyulu4094]

These videos are very helpful me and plz upload Jenkins videos sir

[@NextOpsVideos]

Will do

[@Mukeshgoud-n6g]

Hi Charan, Thank you soo much for delivering a wonderful content, I really liked it, Please could you also give lessons on Kafka as well

[@NextOpsVideos]

Sure

[@applenjapple5236]

In our deployment setup, we have the flexibility to adjust the number of replicas based on your requirements. This means that we can easily change the number of replicas as needed. For example, if you request a reduction in replicas from 4 to 2, we can quickly accommodate this change. Conversely, if after a few months, you require additional pods, we can add 3 more nodes to meet your increased demand. but i want autoscaling based on the traffic .. can make it video for the same pls

[@NextOpsVideos]

Sure. Please share the good word about the channel if you can 🙏🙏🙏

[@PavanKumar-gk3jt]

What is the difference between replicaset and deployment

[@NextOpsVideos]

Replicaset is what which creates replicas for a deployment. Deployment is a combination of multiple pods.

[@mounikareddy2498]

excellent explanation sir

[@NextOpsVideos]

Thanks for watching! Please share the good word about the channel, if you like the videos.

[@mounikareddy2498]

@@NextOpsVideos i have already shared sir , i will share to my team

[@devops2147]

Thanks bro nice explanation Expecting the same for next videos

[@NextOpsVideos]

Thank you for watching 🙏

[@shaffishaik3852]

Your explanation is exceptional anna.. How many total videos are there in kubernetes..??

[@NextOpsVideos]

May be 10 total..

[@srinivas1623]

Thanks Charan if possible scnario based K8s explain chystra with real time examples

[@NextOpsVideos]

Thank you 🙏

[@sharathramapuram8024]

Thanks for delivering quality content

[@NextOpsVideos]

Thanks Sarath for watching 🙏 Please share the good word about the channel if you can 🙏🙏🙏

[@saikumargorrepati7501]

Anna mana channel lo unna k8s knowledge tho experience yentha pettochu

[@NextOpsVideos]

3 years

[@thevarr3817]

Hi charan , Your videos are wonderful 💯 good knowledge

[@NextOpsVideos]

Thank you 🙏

[@manikantadesamsetti]

I have one more doubt in deployment object is there are any strategies like rolling updates and recreate for new changes and how to upgrade the image to latest version?

[@NextOpsVideos]

Yes there are strategies like you said. Usually canary deployment process is followed when there is a change in images. In canary you will run old and new versions simultaneously and switch to new after you become confident with the image.

[@manikantadesamsetti]

I think workload types like daemonset and statefullset will follow this strategies right?

[@Manju_Maddela]

Hii ur vedios are really helpful and the explanation was pin to pin super explanation and can understand very clearly . I just waiting for all the topics in k8s. I hope you will provide them

[@NextOpsVideos]

Hi (May I know your name) thank you. Yes they will be coming. Please share the word if you can 🙏

[@Manju_Maddela]

I'm Manju currently I'm just working on azure paas and I want to learn all the topics in aks like application gateway and many other plz provide them too

[@satishbabuuppula3619]

Awesome information

[@NextOpsVideos]

Thank you Satish for watching 🙏🙏🙏

[@balajigudiwada6082]

great content sir, very good explanation, i have been following up your videos daily. Thanks alot. i have one doubt, i have two worker nodes , they are not picking external IP's Please help me.

[@NextOpsVideos]

If the cluster is public then only they can get public ip otherwise it private ips. Thanks for watching! Please share the good word about the channel, if you like the videos.

[@gke-gi6fo]

Really a great explanation boss

[@NextOpsVideos]

Thank you so much 🙂 please do share a good about the channel if you can.

[@shaiknazeer7307]

We are really gratitude to you sir 🙏 i wish god blessings with you🤗💐🎉

[@NextOpsVideos]

Thank you Nazeer for watching. Please spread the word about the channel if you can 🙏🙏🙏

[@shaiknazeer7307]

@@NextOpsVideos definitely sir It's my pleasure

[@harinathreddy5365]

Hi Anna, i have 3 doubts 1)When we are creating cluster, we mentioned nodes = 2 . Ante, 1 MASTER NODE and 1 WORKER NODE create avthundha Anna ? (or) Cluster create time lo MASTER NODE automatic ga create ayyi, manam mention chese nodes ni batti WORKER NODES create avthaaya Anna? 2)For ex: We have 2 Worker Nodes and while creating deployment using manifestfile, we mentioned replica-set=5 Then, It will create 3copies in Workernode1 and 2copies in Workernode2. Is it correct Anna ? 3)Is there any command to check, How many pods are running in a specific workernode ?

[@NextOpsVideos]

Thanks for the reply.

[@kingkohlifansclub1067]

yes

[@saikumargorrepati7501]

Anna miku kudhirithe scenario based question and answers kuda cheyyandi anna

[@NextOpsVideos]

Will try.

[@kalpanamovva7177]

Thank you Charan garu 😊 Your videos helped me a lot

[@kalpanamovva7177]

You are explained very well I referred to my friends and colleagues

[@NextOpsVideos]

Thank you 🙏

[@maneeshkumarAitha]

Awsome!Explanation

[@NextOpsVideos]

Thank you 🙏🙏🙏

[@fetkamausam5132]

hi bro nuvvu pods create chestappudu container created undha yeppudaitha nuvvu yaml file deploy chesavo container yela vacchindha naku koncham ardam kale or container ni pod tho ela connect chesavo akkada koncham confusion undhi please resolve cheyyava bro and thanks for the wonderfull series

[@NextOpsVideos]

Pod is a concept in k8s, container is concept in docker. So in order to manage containers k8s uses pod as a wrapper, because if it does the same thing as docker there will be no difference between k8s n docker. So they use a concept of Pod which is outer layer of container. Please do share the good word about the channel if you can.

[@sundarsodadasi9731]

Please upload the remaining workload components.

[@NextOpsVideos]

On their way every week.

[@Lokeshjune26]

Best videos

[@NextOpsVideos]

Thank you for watching 🙏

[@lalithabollikonda6984]

Thank you

[@chaitanyaashish9941]

bro need a playlist on jenkins as well! 💖💖

[@NextOpsVideos]

Will plan

[@Looserrr]

Tq