Day-23 | Introduction to Containers | Learn about containers in easy way

Learn Kubernetes FREE Practically -
All Labs page: kode.wiki/3RxQ3dL
Familiarize with environment: kode.wiki/4etu01y
Pods: kode.wiki/3KIMDRL
Replica Sets: kode.wiki/3RxA8Mt
Deployments: kode.wiki/4c3YUw7
Rolling Updates and Rollbacks: kode.wiki/4cpKxSo
Services: kode.wiki/45pFOhr
Support my work
www.buymeacoffee.com/abhishekprd Hi Everyone, We are done with half of the devops course and now we will head towards slightly advanced topics.
In today's class I will introduce you to the world of containers
Telegram Channel Announcement
What is a VM
Problems with VM
How containers solve the problems with Docker ?
What is a Container and use-cases ?
What is Docker ?
Docker Life Cycle
Problems with Docker
Introduction to Buildah
Telegram channel
===============
telegram.me/abhishekveeramalla
About me:
-----------------
LinkedIn: / abhishek-veeramalla-77...
GitHub: github.com/iam-veeramalla
Medium: / abhishekveeramalla-av
KZbin: / @abhishekveeramalla .
.
Disclaimer: Unauthorized copying, reproduction, or distribution of this video content, in whole or in part, is strictly prohibited. Any attempt to upload, share, or use this content for commercial or non-commercial purposes without explicit permission from the owner will be subject to legal action. All rights reserved.

[@AbhishekVeeramalla]

Learn Kubernetes FREE Practically - All Labs page: kode.wiki/3RxQ3dL Familiarize with environment: kode.wiki/4etu01y Pods: kode.wiki/3KIMDRL Replica Sets: kode.wiki/3RxA8Mt Deployments: kode.wiki/4c3YUw7 Rolling Updates and Rollbacks: kode.wiki/4cpKxSo Services: kode.wiki/45pFOhr

[@theCODES67]

site not reachedd please fix it

[@Cloudnp9458]

Containers are lightweight in nature. As they don't have complete operating system Container have minimal operating system that is base image. Container is a package/bundle of application that has all the application library and system dependencies like python. Very easy to ship and transport as they are lightweight in nature. As they use resources from base operating system.

[@bilalosmany5022]

This was the best introduction video ever, I have come to watch it again for interview, I recommended this to all my organization friends who said docker went above their head and today they are thanking me for showing them this playlist one of them even cracked interview with ease now I too will with the confidence I have gained from your videos in this era where people try to earn money by looting students and making studies a business, Some of us could not afford as most salary went in family responsibilities but you made it easy for us , May god bless u sir and you have more more more most success in your future ahead

[@Aadriti_shuklavlogs]

The best thing on the internet is your devops videos....just love it ...god bless you keep it up ❤

[@user-wp4tr7oi7b]

Abhishek Garu, thank you for sharing the content. Your guidance has been invaluable to me, and I deeply appreciate your respectful approach as a teacher. God bless you.

[@sudhirpandey9548]

Your expertise and dedication shine through in every video. Thank you for generously sharing your knowledge with us all!

[@AbhishekVeeramalla]

🚀

[@siva-uw6gm]

Thank you very much Abhishek for the detailed explanation.. I watched multiple videos to understand what is docker & containers still I was confusing.. after watching this video now I understood how it works and what is docker and containers.

[@anjaneyulus5975]

Thank you so much sir.. delivering content as good from you understanding as well with a awesome content👏👏..keep on continue thank you 👍👍

[@AbhishekVeeramalla]

So nice of you

[@avdsuresh]

I have seen lot of videos about docker containers but i did not understand. After watched this video i got interest to learn docker. You have made it very simple and clear. Thank you so much.

[@AbhishekVeeramalla]

🚀🚀

[@ayushvarma9657]

This video was a very good introductory to the world of containers! Keep up the good work 🧑‍🎓🧑‍🎓

[@vs9108]

Thank you for simplicity and clarity ✨

[@vback4238]

Best teacher!! Haven't seen anyone breakdown containers like this.

[@AbhishekVeeramalla]

Thanks lot ❤️

[@vback4238]

@@AbhishekVeeramalla Thank you!!!

[@user-xz7gp1gq1n]

thanks abhishek veeramalla bro

[@abhishekjoshi001]

best source to follow....

[@bodhidharman1231]

Hi Abhishek bro this video gave me a very good idea on containers.

[@growwithamit1983]

Nice description

[@ashwinichivate3905]

Very well explanation in very simple way as always. Thanks a lot.

[@AbhishekVeeramalla]

😍

[@purushothamdilli2692]

Watching all these tutorials as If I'm watching a very Interesting movie......Great work Brother.

[@AbhishekVeeramalla]

Most welcome !!

[@ginasomara267]

This is such a great course thanks soo. much!!

[@AbhishekVeeramalla]

Welcome 🤗

[@ASHOKKUMAR-wq6ty]

Evaru bro nuvvu intha talented ga unnav..👌👌👌

[@AbhishekVeeramalla]

😅

[@user-zm1ng8zh6r]

Great video

[@Kushbukushbu770]

Thank you for ur explanation Abhishek ❤

[@AbhishekVeeramalla]

My pleasure 😊

[@antosebastian9086]

Your Videos are a treasure man! Kudos!

[@AbhishekVeeramalla]

😍😍😍

[@sujethapai5127]

Recently i came across your channel. kuddos to u...i wish i got this before...

[@AbhishekVeeramalla]

Thanks a lot

[@hemadrireddy1515]

The explanation was too good anna, Could you please provide a tutorial for recalling .. 😍😍😍😍

[@deepakpatil5059]

Thanks, Abhishek.. Topics Covered!! 1. What is Container in DevOps? 2. Architecture 3. What is Docker? 4. What is Buildah? Thank You!!

[@mahendragundeti]

Sir your clarity of explanation is top notch a telegram community will help very much Thankyou very much sir. I am looking for resources any on how to contribute to open source projects with this knowledge without knowledge of coding

[@AbhishekVeeramalla]

Thanks alot

[@Gaurav-dq7kw]

Hello Abhishek, Thankyou for sharing the videos. just a quick doubt , do you check and maintain these videos for any new changes happening in technology?

[@saathviksaketh6813]

Hi Abhishek Can we use this docker and kubernetes playlist concept be implemented in azure devops also. Because in azure devops ci/cd pipeline creating you have used docker images.

[@shambhunathsahani6505]

very deep concept cleared Thanks

[@AbhishekVeeramalla]

Welcome 🙏

[@bharathkumarchalla2104]

simply superb 😍🙏

[@AbhishekVeeramalla]

thanks

[@reneshmlal2809]

Thank you ❤

[@SubhajitMaity-yk3bz]

Thank You so much

[@patel5532]

Question: Does docker deployed on VM will share the libraries and resources with VM OS with VM Hots image. I mean if we have windows as host image on top of that we have Ubuntu VM and on this VM we deployed the container, so do the library and resources from host in this case windows is shared with the container?

[@nallapaneniram766]

Perfect thank you.

[@AbhishekVeeramalla]

You're welcome!

[@reddaiahnama893]

Great content Abhishek bro

[@AbhishekVeeramalla]

Thanks bro

[@anunaresh7526]

We have load balancers and auto scaling right, in that case depending on load only we can create the machines using auto scaling right. Just doubt

[@Niki-ue6fk]

thank you sir

[@faisaliqbal7382]

Great Boss.

[@AbhishekVeeramalla]

Welcome

[@artipathak670]

This is really helpful!

[@AbhishekVeeramalla]

I'm so glad!

[@Adityaa2]

Thank yo so much 😇🙏

[@AbhishekVeeramalla]

You’re welcome 😊

[@Cloudnp9458]

Maintainance overhead is less on cloud vms as compared to physical servers.

[@swapnilsingh7170]

Hi Abhishek, Can you tell in which video you have covered docker swarm topic?

[@user-ff2lb1qb6w]

This is so brilliant . God bless you Question : would can someone who is learning with azure follow through with your projects ? Or is it advisable to just use aws ?

[@satyanarayanakondeti2652]

We can do with Azure, AWS and GCP also

[@Cloudnp9458]

Virtual machines are logical sepration , each virtual machine has a OS running and has separate instance of application running

[@AbhishekVeeramalla]

🚀🚀

[@satyamsingh7397]

Very good content ❤

[@AbhishekVeeramalla]

Thanks

[@devops-]

Thankyou sir

[@muddamvamsikumar1860]

You are explaining in a understandable way. Is there any notes as well?

[@DeepthiSuresh777]

What a explanation no words

[@AbhishekVeeramalla]

Thanks

[@DeepthiSuresh777]

Everyone knows docker use host kernal that's only but explanation was explained by u only really

[@KoundinyaG-ur4ci]

Hi Abhishek, Thankyou for providing the wonderful content. I was little bit confused between physical systems, virtual systems and containers in terms of memory usage, resources utlization etc. For suppose let us take the case of windows operating system installed systems, in physical systems, it requires minimum 4 or 6 gb as minimum requirement mentioned by the windows to perform correctly. But when cominig to virtual server, how 1gb ram is supported to run the application. and also coming to container, as it will be light weight which is of 100 or 200 MB, what is the major difference among them.

[@shaffishaik3852]

Anna you are the best

[@AbhishekVeeramalla]

Thanks alot

[@dinukaekanayake7008]

Sir can you do a video on docker compose?how to run java springboot application and mysql database in containers with docker compose?

[@RamakoteswaraoGattu]

Hii brother, I am Ram . iam following your videos since a month , the videos are useful & informative for me. Also can you please guide/ advice to me to a good resume ....

[@jyotishkumar-hv8uy]

Thankyou so much for a very good content, plz explain Buildah in detail, I am not able to understand .

[@AbhishekVeeramalla]

I made a dedicated video on buildah, skopeo and podman with implementation as well. please check :)

[@Cloudnp9458]

Docker engine is single point of failure. If docker engine is failed, container will go down, so to avoid this. Buuldah tool will sove this as well as problem of image layering. Using shell script .You can also create docker image or oci using buildah.

[@shmayuri5746]

Thanks you so much bro for this but can you provide Devops engineer interview questions

[@NAVINKUMAR-vf8zd]

Hi abhishek garu am new to IT I hv some fear like should I learn or not Devops. What ur suggestion to me..

[@nihalahmed6302]

Thank you sir.. Question: Is it possible to attach an existing volume to an existing running container without stopping the container?

[@sainath4277]

It's a good question and yes it's possible to attach volume while the container is running without restart: docker container exec -it my-container mount -t local /dev/sdX /path/in/container Local nothing but type of volume.

[@VinayKumar-cm2nn]

EDIT : GOT ANSWER TO THIS QUESTION IN K8S ARCHITECTURE CLASS,TQ. Hi Abhishek, now a days it's been said that docker containers in k8s are replaced by something called cri(container runtime interface) and there is a standard set for containers by oci , is this buildah is the one kind of thing which replaced docker containers in k8s?

[@AmrutaWagh-kb3yv]

what are the docker disadvantages?

[@pittavarun1647]

Anna, could you please also do videos on AWS. I found AWS play list in your channel but there are no complete videos. Please look into it when you have time. 😍

[@AbhishekVeeramalla]

In this course .. we will do more video .. don't worry .. I will make sure u all learn aws

[@pittavarun1647]

@@AbhishekVeeramalla you are the best of all😍🤩

[@PeopleOfDubai]

Bro, could you please make videos on the azure devops course too. @@AbhishekVeeramalla

[@wandererashish]

Abhishek bro. Do we have notes for this as well on GIT like your other courses.

[@saiteja4989]

Hi Abhishek , you mentioned to reduce cost we are using containers , but at 12:09 you’re mentioning that we need to create containers on top of ec2 isn’t this same again ? If that’s the case we are using vm and container both right . Can you please clarify if I misunderstood thanks .

[@AbhishekVeeramalla]

I hope u watched previous video. I explained this in previous ones but thats ok, let me try again. Using containers you make the most use of vms or bare matel, wherever the continarization is being performed.

[@jaykumaranbu7173]

Thanks

[@AbhishekVeeramalla]

Welcome

[@ashishhverma]

Great explaination Abhishek Went through Udemy course also to understand topic but your explanation is far better than that course❤ Really appreciate your work🎉

[@AbhishekVeeramalla]

Thanks

[@venkatindraganti9549]

Hi Abhishek, One question at the time stamp point 24:15. As mentioned we can create a docker image using builda my question even to create a docket image from builda we need a docker engine? If not what is the integration process here. Can u please elaborate ASAP

[@AbhishekVeeramalla]

You dont need docker engine. There is a dedicated video on Buildah. Pls check

[@venkatindraganti9549]

@@AbhishekVeeramalla ok thank you I will check.

[@umashanker3244]

can you just explain about buildah and how it works and how we can write shell script for buildah

[@junnunvishal1175]

@Abishek.Veermalla. I need Help on linux after executing the systemctl status docker command in ubantu. MAY I know wht will be the command to write command for the further action .after this lines 1-21/21 (END)

[@rangaswamy4358]

Just enter q or Ctrl + D and continue with next commands

[@Suman522i1]

Am fresher abhisek, are the handson project enough to get internship? Btw big fan of ur teaching skill. Tomorrow if u put out any paid devops course I will be the first student just do know, not to mention I attended Praveen singampalli's course but lot of unknown useful things get to know from u, somehow I connect with u more.

[@AbhishekVeeramalla]

Hi Suman , Thanks alot Please join our telegram channel for more details soon telegram.me/abhishekveeramalla

[@subhkantkumar839]

@@AbhishekVeeramalla thanks

[@tejach3354]

Hi Abhishek Thanks for wonderful session , But still I did not understand how containers use memory efficiently. Lets say if VM is 10gb , if my application in container using 2gb of space. Still we are not efficiently using the space right?

[@AbhishekVeeramalla]

It will not. Watch the next episodes u will understand

[@user-su8nd6mz6u]

@AbhishekVeeramalla Can you please make a video on eks, autoscaling of pods using memory and cpu utlilization

[@Myyt1996]

Hlo Abhi Anna, Definently we need to upskill more about docker. but Is this 7 docker content videos is fine to learn and perform in the job as a non relevant experience job holder.

[@AbhishekVeeramalla]

Yes

[@subhasismandal4180]

difference between docker engine, docker daemon, docker runtime , a explanation on these topics would be helpful

[@sunayraj]

Yes, Daemon issued to build,run,manage containers, where as D.Engine is for entire docker platform including daemon and cli.

[@gudamahendar6992]

done abhishek

[@Brainyboy777]

Is this series good for total beginners?

[@saikrishnap5565]

can you please add all interview questions videos into one playlist

[@yogendradodiya4270]

Nice

[@AbhishekVeeramalla]

Thanks

[@jyotikansal191]

How to answer how many Ec2 instances are you managing in your organization? how many containers you monitored?

[@AbhishekVeeramalla]

It is not mandatory to manage some 1000 of servers .. so be honest.. np

[@jyotikansal191]

@@AbhishekVeeramalla thanks for the reply ...so how to answer in numbers ....any rough estimates?

[@tanmoysantra1112]

❤️

[@AbhishekVeeramalla]

❤️

[@murugappanmuru]

Hi Abhishek, as you said VM's has drawback of not utilising the resources efficiently and so there comes the advancement to containers. But, there are scaling options available in cloud based on load right. whether this scaling options could not helps in efficiently using the resources? can you please shed some light here? Thanks.

[@sivapavan490]

Bro at last try to make a video take a source code. Using all the resources how to deploy the application on real time like by using docker, k8s in Aws

[@AbhishekVeeramalla]

Yes I will

[@sangativamsikrishna1691]

Please provide some more info about Buildah Abhishek. thank you

[@AbhishekVeeramalla]

I made a dedicated video for buildah and skopeo .. please check

[@sangativamsikrishna1691]

@@AbhishekVeeramalla can you please share the link abhishek

[@sainithin372]

can you explain docker-compose file also?

[@MaheshK-cp9kd]

abhishek please share any material for docker

[@awesomeuploads118]

It would be more clear if you could explain it with some real life scenarios like imaginge explaining it to someone who does not has CS background

[@AbhishekVeeramalla]

If u watch the videos from day-1, CS background is not required

[@awesomeuploads118]

@@AbhishekVeeramalla Planning to start it once I complete your AWS series. I really loved your explanation of VPC concept. It was one of the best explanation ever.

[@mathewjoseph1348]

❤❤❤

[@AbhishekVeeramalla]

Most welcome !!

[@saiharsha4619]

Hi Abhishek, I have been learning docker there are few queries about building my own docker image's. I have zero knowledge of software development frameworks like django,flask and nodejs, so my worry is how will a DevOps be able to write Dockerfile for different applications. Do we need to have clear understanding of software frameworks??.. Please clarify Abhishek.

[@AbhishekVeeramalla]

I will teach the same thing next classes .. don't worry .. if you still have doubts .. please let me know

[@saiharsha4619]

@@AbhishekVeeramalla okay 👍

[@manishanarse7851]

Is docker engine and docker deamon same or there is diffrence?

[@AbhishekVeeramalla]

Docker Daemon is a part of Docker Engine .. explained in day 29 .. please check

[@manishanarse7851]

@@AbhishekVeeramalla ok i will check, thanks ✨

[@adibanaazfatima7192]

Hi! Sir will you provide online course for DevOps . Thank you

[@AbhishekVeeramalla]

Will plan in future

[@adibanaazfatima7192]

@@AbhishekVeeramalla Thank you. I am on waiting list…

[@yashvanthbalaji359]

Hey abishek can you do video on containerd, since the kubernetes is supporting containerd, it will be helpful

[@AbhishekVeeramalla]

Ok, i will try

[@shivamthakur674]

Anyone have received offer from this series? Please reply it will motivate me

[@AbhishekVeeramalla]

You can check the community tab. You will find so many

[@shivamthakur674]

@@AbhishekVeeramalla thanks Abhishek, this is valuable for me.

[@premium7720]

Yes , a lot of people,including me ..this series helps you to understand concepts from scratch.

[@reggie9550]

How to watch the full series for Dockers, please.. only see from day 23 +. I have subscribed member.

[@AbhishekVeeramalla]

Hey, day 23 is the first video, don’t worry. The docker playlist is part of the DevOps Playlist, so it is day 1 for docker but day 23 for devops playlist

[@venuav2565]

Please share some references material sir..

[@0986rashmi]

Hi Abhishek , I’ve been following through your channel from several months and the hands on tutorials are very useful . I still have couple of questions to ask about Jenkins like isn’t it one time activity in the DevOps role , how often the Jenkins and this Ops set up you normally carry out on a daily basis . Just would like to understand a bit more in this area . As I have couple of interviews Lined up on the same it would be helpful if I get the answer quickly . Thanks in advance

[@katkurijayashree177]

Unable to.join telegram with that link

[@AbhishekVeeramalla]

please use telegram.me/abhishekveeramalla

[@bhavyab3600]

Sir, you are just awesome❤

[@rajapurampurushotham4056]

Is this course advance level r basic level?

[@AbhishekVeeramalla]

it is intermediate level

[@komalam7179]

Could u please do videos on azure also

[@AbhishekVeeramalla]

Sure

[@aakashsonkusare69]

Even if you are thinking of earning from your HIGHLY VALUABLE content, please keep at least this devops series free whichever videos have already been uploaded.

[@AbhishekVeeramalla]

I have no intention of converting these to paid

[@devops_Aws]

etna complicated way m explain kiya app ne

[@AbhishekVeeramalla]

Thanks for the feedback, which part was difficult to understand?

[@bodhidharman1231]

I have put like and gave you 2 command I hope any way I can help you back for your work....