What is Docker Volume | How to create Volumes | What is Bind Mount | Docker Storage

11:26 Bind mount
More about Raghav - automationstep...
Today we will learn:
1. What are Volumes
2. How to create / list / delete volumes
3. How to attach volume to a container
4. How to share volume among containers
5. What are bind mounts
Volumes are the preferred mechanism for persisting data generated by and used by Docker containers
: docker volume //get information
: docker volume create
: docker volume ls
: docker volume inspect
: docker volume rm
: docker volume prune
Instead of deleting containers one by one of docker ps -a , we can use docker container prune. and for docker ps (running containers) we can use docker rm $(ps -aq)
Use of Volumes
===========
Decoupling container from storage
Share volume (storage/data) among different containers
Attach volume to container
On deleting container volume does not delete
Commands
docker run --name MyJenkins1 -v myvol1:/var/jenkins_home -p 8080:8080 -p 50000:50000 jenkins
docker run --name MyJenkins2 -v myvol1:/var/jenkins_home -p 9090:8080 -p 60000:50000 jenkins
docker run --name MyJenkins3 -v /Users/raghav/Desktop/Jenkins_Home:/var/jenkins_home -p 9191:8080 -p 40000:50000 jenkins
References
hub.docker.com...
docs.docker.co...
NOTES
By default all files created inside a container are stored on a writable container layer
The data doesn’t persist when that container is no longer running
A container’s writable layer is tightly coupled to the host machine where the container is running. You can’t easily move the data somewhere else.
Docker has two options for containers to store files in the host machine
so that the files are persisted even after the container stops
VOLUMES and BIND MOUNTS
Volumes are stored in a part of the host filesystem which is managed by Docker
Non-Docker processes should not modify this part of the filesystem
Bind mounts may be stored anywhere on the host system
Non-Docker processes on the Docker host or a Docker container can modify them at any time
In Bind Mounts, the file or directory is referenced by its full path on the host machine.
Volumes are the best way to persist data in Docker
volumes are managed by Docker and are isolated from the core functionality of the host machine
A given volume can be mounted into multiple containers simultaneously.
When no running container is using a volume, the volume is still available to Docker and is not removed automatically. You can remove unused volumes using docker volume prune.
When you mount a volume, it may be named or anonymous.
Anonymous volumes are not given an explicit name when they are first mounted into a container
Volumes also support the use of volume drivers, which allow you to store your data on remote hosts or cloud providers, among other possibilities.
#DockerVolume #DockerBindMount #DockerContainers #DockerTutorials #DockerTraining #DevOpsTools #DevOpsTraining #DockerCommands #DockerForBeginners #DockerFreeTutorials #DockerforDevOps
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Raghav

[@beunmin6]

All of your tutorial with docker is easy to understand and easy to digest. Thank you for making this. This helps a lot.

[@RaghavPal]

You're welcome Angelo

[@guptasaurabh688]

This is very easy and good explanation Raghav. You represent things in simple way. I really appreciate. Instead of deleting containers one by one of docker ps -a , we can use docker container prune. and for docker ps (running containers) we can use docker rm $(docker ps -aq).

[@RaghavPal]

Thanks for adding Saurabh

[@heshanwijeratne2155]

I am a student currently learning Docker and have struggled to find clear explanations about Docker volumes. Your video is very clear, your voice is easy to understand, and as a thank you, I am now following you. Thank you again and again! i will be sharing your channel and your website with my colleagues too !!

[@RaghavPal]

You're very welcome Heshan.. humbled

[@nawalsingh1789]

Wonderful explanation. I was really looking for such kind of video, easy, practical, and live with all the details. Thank you very much. Keep posting more videos.

[@RaghavPal]

You're welcome Nawal.

[@gautamdikshit9888]

Thank you. By far the most easy to follow explanation I've come across.

[@RaghavPal]

Most welcome Gautam.. humbled

[@ethanrose6950]

the only resource on the internet that did not throw an error--including the documentation. thanks!

[@RaghavPal]

Glad to know it helped Ethan

[@ranjithreddych]

After reading tons of info and still confused,this video really helped. Thanks a lot.

[@RaghavPal]

Happy to know this Ranjith

[@ramiworkstation]

Thank you very very very much for the lesson. What I like the most about your videos is that you teach in a calm and relatively slow pace. Which in my opinion is the key for successful learning. I send you love and blessing. Big like and subscribe from me. 🌻

[@RaghavPal]

Thanks a lot Rami.. humbled

[@prithvirajsingh8537]

Easy, simple informative video thank u sir

[@RaghavPal]

Most welcome Prithviraj

[@OddBallTrails]

You are more than a teacher. I am glad I found you. Thank you so so so much.

[@RaghavPal]

Thanks Mukesh, humbled by your message

[@dragonball41876]

Much appreciate with some simple but to-the-point examples! You are a really good teacher!

[@RaghavPal]

Glad it was helpful

[@nawazali6903]

Thanks for putting this video together. Clear and to-the-point. Keep up the good work!

[@RaghavPal]

Glad it was helpful Nawaz

[@hd3adpool]

Real quality videos with precise and clear explanation. I am grateful for these videos as they teach me so much in mere few minutes. Thanks a ton brother.

[@RaghavPal]

You're welcome Harshil

[@rameshjp7045]

Perfect! Understood docker volume in 15 minutes. Thanks a lot!

[@RaghavPal]

You are welcome Ramesh

[@HK-sw3vi]

took me 15.07 mins

[@LeonRamkumar]

My god, I've been struggling with the binds for days! Thanks, I now finally get it. I'm an absolute docker beginner.

[@RaghavPal]

Glad I could help Leon

[@jsemblano9819]

As always Raghav awesome. I already “know” you a few years and you never disappoint

[@RaghavPal]

Thanks a ton J Semblano.. humbled

[@samuelopoku-acheampong5601]

Super, all of your tutorial with docker is easy to understand and easy to digest.

[@RaghavPal]

Great to hear this Samuel

[@prasenjitsaha5322]

Your way of explanation is great. Providing notes in the video description section is very helpful. Thanks for enlightening us with your knowledge.

[@RaghavPal]

Glad it was helpful Prasenjit

[@pavithren]

Thanks Raghav! You have explained the concept clearly and succinctly.

[@RaghavPal]

Glad it was helpful!

[@shantharamPK8160]

Very easy to understand tutorial.. 👌. I guess the problem with using port 70000 is exceeds the max allowed port no of 65535, which is a networking stipulation

[@RaghavPal]

thanks for sharing Shantharam

[@VinothKumar-jw7iy]

Thank you very much for this tutorial am very new to docker and learning the concept one by one, your tutorial is more helpful to learn docker.

[@RaghavPal]

Most welcome Vinoth

[@guylemay1471]

It reads like a Coconut-pie recipe my old granny used to have in her kitchen drawer ....I had to be a very good boy to get some of that pie - thank you so much!

[@RaghavPal]

So glad to read this . Thanks

[@84prabhumishra]

one of the best content over internet on docker volumes.

[@RaghavPal]

Happy to see this Prabhu

[@PhilipDenys]

perfect run through... even learned a mac feature (splitscreen )

[@RaghavPal]

Great to know Philip

[@nishamahendran1532]

Thank you so much for explaining about volume mapping in containers with hands on. Helped me a lot to understand easily. Can you also explain how this volume mapping is handled at the time of autoscaling the containers?

[@RaghavPal]

Sure Nisha, will add more tutorials

[@glyakk]

This made understanding volumes crystal clear, much appreciated.

[@RaghavPal]

You're welcome Allen

[@mazharulboni5419]

Very well explained for the beginners. Thank you Raghav

[@RaghavPal]

Thanks and welcome Mazharul

[@maazkhan6489]

very simple ....yet powerful explanation.

[@RaghavPal]

Thanks Maaz

[@amrExplore]

Very simple explanation with examples. Also if you can add networking module in addition will indeed help

[@RaghavPal]

Hi Anand, I will check that soon

[@shibasisnayak6062]

You explained very precisely. Really appreciated. But I have one concern here how can we will get our deleted container data.

[@RaghavPal]

Hi Shibasis, I have not tried, here is some information on this - stackoverflow.com/questions/29202787/restore-deleted-container-docker

[@abhirupnandi442]

Very nice tutorial 👍. Simple & elegant. Thnks for making such useful tutorial 👍. Really learned a lot😀

[@RaghavPal]

So nice of you Abhirup

[@annakhuseinova8162]

The way you explain things is amazing! :)

[@RaghavPal]

Thanks Anna

[@deeptikulkarni618]

I like all of your videos... It's really very easy n interesting to understand compared to other over rated channels like edureka.. thanks a lot sir!!

[@RaghavPal]

So happy and humbled to see your message Deepti.

[@fahadshakeel3223]

Simple and practical approach with all the necessary explanation to understand the concept fully. Good Job! Thanks..

[@RaghavPal]

Glad it was helpful Fahad

[@Adam-gp3ij]

Sir, you made this video since 2018 and its really helpful for me in 2020. Thank you so much from the heart

[@RaghavPal]

You're most welcome Adam, I will also be created latest videos. Check all here - automationstepbystep.com/

[@Adam-gp3ij]

Automation Step by Step - Raghav Pal i really want to learn Docker and Jenkins. I purchased a course from Udemmy, but was really hard to understand. Your way was amazing, I really got it from the first time. Your Jenkins and Docker courses are Kinda old? Do you have somewhere courses. I hope you have a Udemmy course. Please let me know. Much appreciated Adam

[@Adam-gp3ij]

Automation Step by Step - Raghav Pal I think I can see your courses on Udemmy. But I think Jenkins is old and I am not even able to install it on my Mac. However, can I get a promotion code for Docker course. Thank you

[@RaghavPal]

Hi Adam, I will be creating Jenkins and Docker Udemy courses in some time.

[@anurasenarathna1703]

A very good series. Thank you very much for sharing your knowledge.

[@RaghavPal]

Glad you enjoyed it Anura

[@codenx2]

You are awesome raghav, to the point. No extra talk. Thanks for the video.

[@RaghavPal]

Thanks a lot. Humbled

[@CharlieBelvo18]

thanks a million for the explanation and making a vid on this, really helped my understanding

[@RaghavPal]

You're welcome Charlie

[@ashokreddypunyala9192]

Hi Raghav, really you made my day Hatsoff to your explaination.

[@RaghavPal]

So happy to know this Ashok

[@nikhilgupta5721]

Excellent Raghav!! You explained it very well with practical example. You Rock Man!! Waiting for more such like videos.

[@RaghavPal]

Sure Nikhil, thanks for watching

[@tamilkumarannamalai5545]

Almost I learned basic .. today... Thank you very much !! Raghav

[@RaghavPal]

You're welcome, keep learning.

[@NasirAli-hs8np]

Love you Raghav! God bless you kind sir!

[@RaghavPal]

Thanks a lot Nasir

[@hiroyukinumaguchi1984]

Your explanation is very easy to understand and informative! Thank you!!

[@RaghavPal]

You're most welcome Hiroyuki

[@prashanth6848]

this video is very informative. very well explained for begineers. thanks

[@RaghavPal]

You're very welcome Prashanth

[@MerinNakarmi]

This tutorial is fantastic! Concise and to the point!

[@RaghavPal]

Glad it was helpful Merin

[@enricosaccheggiani3192]

Very good job Raghav. Congratulations !! Very well explained . Thanks a lot

[@RaghavPal]

Most welcome Enrico

[@ateeqrehman6621]

Thank you very much for this wonderful tutorial. Very Easy Very Informative. Love from Pakistan.

[@RaghavPal]

Most welcome Ateeq

[@ilyasjumadurdyew8074]

Man, your job is VERY VERY helpful. I'm developer with about 6+ years of real development. But tranding shit like CI/CD or Docker is too magical for someone who is reviewing all packets before installing, who is managing environment with static Ip addresses, who thinks before making update.

[@RaghavPal]

Happy to know it helped Ilyas

[@IAm-xr2xh]

I'm really like your videos. It's very clear and helpful. Thanks for your videos.

[@RaghavPal]

You are welcome!

[@hebronspiritualmessages9382]

Thanks Ragav for sharing video.. i have one doubt when we say docker volume create .. where this volume will be created ? is that volume avaiable in our local machine ..where this volume stored ? Also is there any other types of volumes avaiable to make container persistant ..? And how about Kubernetes volume works and where it is stored the volumes when we create volume using peristantvolumeclaim files kindly explain Thanks in adavnce..

[@RaghavPal]

Hi Jashva, I believe I discussed breifly on that and also volume and bind mounts. You can check more online and I will plan to add a separate session soon

[@motolola]

Excellent, now I found a new favourite tech channel

[@RaghavPal]

Happy to know Akinjide. Best wishes, Raghav

[@kevinye6288]

Just wanted to thank you Raghav Patel

[@RaghavPal]

You're welcome Kevin

[@manojishere]

Very well explained with simple use cases

[@RaghavPal]

Glad it was helpful Manoj

[@Iam_gr00t]

If you need to remove all running docker process in a single shot, You can use this command line.. docker rm -f $(docker ps -aq) . BTW, nice video..

[@RaghavPal]

Thanks Arul

[@farrukhahmedsid]

Wow.. you easily explained it in detail. Excellent video!

[@RaghavPal]

Glad you liked it Farrukh

[@ezrachirii7006]

Thanks a lot i have been struggling to mount a volume on a windows machine the last bit saved me Great Content!

[@RaghavPal]

You're welcome Ezra

[@pmc23]

I have watched your docker videos twice 😍 waiting for advanced docker tutorials :)

[@RaghavPal]

So happy to know this Harsha, I will do Advanced Docker. Cannot say a specific time, as I am engaged with multiple things, but will do it surely. Keep yourself subscribed to get notifications

[@ParticleClara]

Thanks so much, this is exactly what I needed to know!

[@RaghavPal]

You are so welcome Clara

[@ravankolgowrishankar9952]

Hi Raghav, I followed all your Git , Jenkins, Docker can you create an application or a small program upload to git integrate with jenkins and use docker for deployment on any server that would be more helpful and can add more sense to understand the complete flow from end to end

[@RaghavPal]

Hi Ravankol, I will do it in some time

[@pakc2690]

Thank you so much. Best explanation ever!

[@RaghavPal]

You're very welcome!

Very useful explanation. Thank you very much!

[@RaghavPal]

You're welcome Bernd Glückert

[@pradeepkumar-ol2mk]

Wonderful explaination sir. Thank you soo much.It helped me a lott

[@RaghavPal]

You are most welcome Pradeep, Do follow other sessions and let me know if you face any issue

[@suhasiniiraghuwansh]

Very well explained the concept of volume and bind mount.. Thanks a lot

[@RaghavPal]

Most welcome Suhas

[@cosmos4427]

Thanks for a very fast, clear and informative tutorial : ) Q: Can the volume be a cloud storage bucket from a cloud provider like Google, So that a newly created container can read from it? If Yes y not make a video demonstrating using cloud volumes.. I subscribed after watching first few minutes of this video..

[@RaghavPal]

Yes you can Adithya, I will plan a session

[@carlellis9647]

The answer to that question is yes it can, which is why volumes are so convenient to use. They can be stored on the cloud and volumes can be shared by multiple containers. The Docker website has some good information on this. I'd suggest going to their site and reading up on Docker Volumes so you can get a good understanding of this.

[@akant74]

Great content.. especially loved the "recap" credits with music at the end.

[@RaghavPal]

Glad you enjoyed it Kenny

[@ManuelJordan317]

As usual, an excellent tutorial - huge thanks for the video!!! I though that through the creation of a volume through the `docker volume create volume_name` command - but using some option - would be possible define its path - but seems is not possible and docker always uses the '/var/lib/docker/volumes//_data' path A cold beer to you friend!

[@RaghavPal]

Hi Manuel, thanks for watching

[@richardbryangragasin5069]

great job! i will share this to my colleagues

[@RaghavPal]

Awesome, thank you Richard

[@melbienrigabitan9699]

Hi! That was absolutely simple yet interesting, thank you for making that vid I was able to understand volume more now. Out of question but, can you try making a vid using volume in docker-compose? Thank you!

[@RaghavPal]

Happy to know that Chen, I will try after some time.

[@nethajimeda5654]

Excellent mostly at ending sharing key points shows u r 💖 love at work ...

[@RaghavPal]

Thanks for the message .

[@manojnaidu619]

Amazing walkthrough. Loved it✌

[@RaghavPal]

thanks Manoj

[@gauravprajapati9987]

Simple and very easy to understand! Thanks!

[@RaghavPal]

You're welcome Gaurav

[@nforlife]

My preferred teacher 🤗

[@RaghavPal]

Thanks a lot

[@codestorywithMIK]

Amazing. Thanks for the practical examples.

[@RaghavPal]

You're welcome Mazhar

[@nitinkaushik9764]

Superb. Very Simple explanation. keep up the good work.

[@RaghavPal]

You're welcome Nitin

[@be236]

Excellent tutorial on Docker Volumes!

[@RaghavPal]

So happy to know this Andrew

[@nainglinthu753]

Thank you so much, I keep learning from you. Thanks, a lot.

[@RaghavPal]

So nice of you Naing Lin

[@rajdeepdas6098]

Hi !! This was the most amazing tutorial on Dockers, Thanks a ton :)

[@RaghavPal]

You're welcome Rajdeep. Happy and Humbled to see your message

[@tareqnasif2880]

u are amazing explaining. thanks man

[@RaghavPal]

You're welcome Tareq

[@vijayvaswani9717]

Thanks Raghav,well explained..

[@RaghavPal]

Most welcome Vijay

[@gopalkrishnan7208]

Its Excellent Teaching and your videos

[@RaghavPal]

So nice of you Gopal

[@fyqwerty]

thank you , ı understant volumes easy with this video

[@RaghavPal]

Most welcome

[@shashankchoubey4914]

Very nice explanation

[@RaghavPal]

Thanks for watching Shashank

[@Michael17000]

Beautiful tutorial run! Many thanks

[@PankajSharma-vg1ty]

Great explanation sir. Thank you😊

[@RaghavPal]

Most welcome Pankaj

[@sabburaj]

Very very nice explanation, thank you very much. I love each of your videos!! Keep posting, it is really useful.

[@RaghavPal]

Glad you like them Narayan

[@georgesmith3022]

Thanks a lot, clear and concise. So volumes are preferred over bind mounts?

[@RaghavPal]

Yes usually Volumes are preferred

[@betterwithrum]

No, there isn’t a preference as Raghav Pal. It is dependent on the use case. Here’s an example. Container task handling jobs off a queue, say RabbitMQ or ActiveMQ. They may need to save their results somewhere. In that case a volume is not preferable. It always comes down to use case. That volume mought might be a Samba or NFS host mount where other consumers (Kafka, Hadoop/Spark, Presto, etc) will ingest the results. So, look at your need for the effort and make the call.

[@luxxart]

Really useful tutorial! Thank you!

[@RaghavPal]

Most welcome

[@hesperaux]

Hi Raghav, Thanks for your video. It was useful. However, I was hoping you would address the concern of concurrent access to the same data store. Is it true to say that multiple docker containers can use the same volumes, but only if they are not modifying the same data simultaneously? Wouldn't accessing certain application data cause inconsistencies in that data, if multiple containers were using it at the same time? I assume the answer is yes. And so if that is true, what do we do about it? Would we have to look at load balancing abstractions between the application and the user, in this case, or is there a docker solution to this problem? Thanks!

[@RaghavPal]

Hi, I believe this is a common scenario and should be taken care by the system and do the updates real time. I will explore more on this

[@cryp0g00n4]

Hands down just amazing (the music)... and the teaching too ;)

[@RaghavPal]

Thanks for the kind words

[@ravilanka5030]

The best short videos with more info, thanks a lot sir,keep gng

[@RaghavPal]

So nice of you Ravi

[@saisrikarmutya8244]

Very detailed video. You have explained it in a very simplified manner. :)

[@RaghavPal]

Thanks for watching Sai

[@TheManiher]

Can you detail, how to attach external volume to docker?

[@RaghavPal]

Hi Manohar, I will plan to add a session for now pls take online help.

[@arturo7392]

Oh man... what an excellent explanation...! Thanks!

[@RaghavPal]

You're welcome Arturo

[@bvenkatvinay1087]

I like your videos so much sir good explaination

[@RaghavPal]

Thanks and welcome

[@srkotturu]

Your videos are I can say one of the best videos I came across. Thanks for sharing your knowledge. One question. Are these 15 docker training videos are sufficient for cracking the interviews and for any beginner and intermediate level positions?

[@RaghavPal]

Happy to know Srinivas, this is enough to get the complete basics of Docker. This will get you ready to work on Docker on any project and then you can learn project specific needs

[@nergalgreedes5763]

just wonderful. very well explained. Thank you.

[@RaghavPal]

You're welcome Nergalgreed

[@techvideos6157]

Thanks for your explanation. I need to know like, if we stop the container whether application will copy from volume or will be available(container) ?

[@RaghavPal]

Hi, did not get your query. Pls explain what exactly are you looking for.

[@poonamdavari2827]

Awesome explanation, please keep uploading more content on devops tools :)

[@RaghavPal]

Sure I will Poonam

[@masumehjavanbakht9499]

This was really excellent. Thanks a lot for making such a nice videos.

[@RaghavPal]

So nice of you

[@kunchalavikram]

Super explanation. Would love to see your courses on Jenkins, Ansible, Kubernetes, Docker Swarm and atleast one complete project on CI CD

[@RaghavPal]

Sure Vikram, I will do more DevOps topics. Existing ones are present here - automationstepbystep.com/