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

[@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

[@Aadriti_shuklavlogs]

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

[@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.

[@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]

🚀

[@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]

🚀🚀

[@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.

[@ayushvarma9657]

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

[@user-xz7gp1gq1n]

thanks abhishek veeramalla bro

[@vback4238]

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

[@AbhishekVeeramalla]

Thanks lot ❤️

[@vback4238]

@@AbhishekVeeramalla Thank you!!!

[@bodhidharman1231]

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

[@abhishekjoshi001]

best source to follow....

[@vs9108]

Thank you for simplicity and clarity ✨

[@purushothamdilli2692]

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

[@AbhishekVeeramalla]

Most welcome !!

[@growwithamit1983]

Nice description

[@ashwinichivate3905]

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

[@AbhishekVeeramalla]

😍

[@ginasomara267]

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

[@AbhishekVeeramalla]

Welcome 🤗

[@ASHOKKUMAR-wq6ty]

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

[@AbhishekVeeramalla]

😅

[@sujethapai5127]

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

[@AbhishekVeeramalla]

Thanks a lot

[@Kushbukushbu770]

Thank you for ur explanation Abhishek ❤

[@AbhishekVeeramalla]

My pleasure 😊

[@antosebastian9086]

Your Videos are a treasure man! Kudos!

[@AbhishekVeeramalla]

😍😍😍

[@user-zm1ng8zh6r]

Great video

[@hemadrireddy1515]

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

[@bharathkumarchalla2104]

simply superb 😍🙏

[@AbhishekVeeramalla]

thanks

[@shambhunathsahani6505]

very deep concept cleared Thanks

[@AbhishekVeeramalla]

Welcome 🙏

[@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

[@deepakpatil5059]

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

[@reneshmlal2809]

Thank you ❤

[@artipathak670]

This is really helpful!

[@AbhishekVeeramalla]

I'm so glad!

[@reddaiahnama893]

Great content Abhishek bro

[@AbhishekVeeramalla]

Thanks bro

[@nallapaneniram766]

Perfect thank you.

[@AbhishekVeeramalla]

You're welcome!

[@faisaliqbal7382]

Great Boss.

[@AbhishekVeeramalla]

Welcome

[@SubhajitMaity-yk3bz]

Thank You so much

[@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?

[@Niki-ue6fk]

thank you sir

[@Adityaa2]

Thank yo so much 😇🙏

[@AbhishekVeeramalla]

You’re welcome 😊

[@Cloudnp9458]

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

[@shaffishaik3852]

Anna you are the best

[@AbhishekVeeramalla]

Thanks alot

[@satyamsingh7397]

Very good content ❤

[@AbhishekVeeramalla]

Thanks

[@muddamvamsikumar1860]

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

[@devops-]

Thankyou sir

[@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

[@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 :)

[@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

[@swapnilsingh7170]

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

[@Cloudnp9458]

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

[@AbhishekVeeramalla]

🚀🚀

[@dinukaekanayake7008]

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

[@shmayuri5746]

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

[@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.

[@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

[@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

[@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

[@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?

[@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.

[@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.

[@tanmoysantra1112]

❤️

[@AbhishekVeeramalla]

❤️

[@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

[@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?

[@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.

[@yogendradodiya4270]

Nice

[@AbhishekVeeramalla]

Thanks

[@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.

[@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.

[@saikrishnap5565]

can you please add all interview questions videos into one playlist

[@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..

[@mathewjoseph1348]

❤❤❤

[@AbhishekVeeramalla]

Most welcome !!

[@gudamahendar6992]

done abhishek

[@umashanker3244]

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

[@Maniteja6]

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

[@wandererashish]

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

[@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

[@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.

[@MaheshK-cp9kd]

abhishek please share any material for docker

[@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

[@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

[@yashvanthbalaji359]

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

[@AbhishekVeeramalla]

Ok, i will try

[@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)

[@Brainyboy777]

Is this series good for total beginners?

[@sainithin372]

can you explain docker-compose file also?

[@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.

[@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

[@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.

[@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?

[@venuav2565]

Please share some references material sir..

[@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

[@komalam7179]

Could u please do videos on azure also

[@AbhishekVeeramalla]

Sure

[@devops_Aws]

etna complicated way m explain kiya app ne

[@AbhishekVeeramalla]

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

[@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…

[@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

[@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 ✨

[@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 👍

[@bodhidharman1231]

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

[@rajapurampurushotham4056]

Is this course advance level r basic level?

[@AbhishekVeeramalla]

it is intermediate level

[@katkurijayashree177]

Unable to.join telegram with that link

[@AbhishekVeeramalla]

please use telegram.me/abhishekveeramalla

[@bhavyab3600]

Sir, you are just awesome❤

[@punithaips3807]

Hi ji ant project for Docker can you share

[@AbhishekVeeramalla]

watch this playist, there are projects in this playlist

[@sumansamanta330]

15th Feb, 2024

[@Cloudnp9458]

Lifecycle of docker is , first write a docker file and then execute the image using dockerfile and then run the image as container. Dockerfile to image to container

[@AbhishekVeeramalla]

🚀

[@vmadhaviaradhyula]

Hi @Abhishek , Thank you for your efforts in giving us free content to learn. Can you please help me with my query. Flow : Commands -> dockerfile -> image -> container Where docker enginee comes in the above flow ? Or docker enginee helps to create the docker image and container using docker file. Please help me in understanding. Thanks in advance.

[@kingdavid526]

Better to use notepad for explanation

[@AbhishekVeeramalla]

How can we write so much in notepad ?

[@sivasuribabu1471]

Abhishek is not at all required any suggestions.