Docker Volumes Explained (PostgreSQL example)

In this short video I discuss docker volumes and demonstrate how to use volumes with postgres instances. We will create a postgres docker container, create some tables, backup our volume, destroy the container and spin up a brand new container with our existing volume.

#POSTGRES
docker run -p 5432:5432 --name pg -e POSTGRES_PASSWORD=postgres postgres

#PGADMIN
docker run -e PGADMIN_DEFAULT_EMAIL="hussein” -e PGADMIN_DEFAULT_PASSWORD=“password” -p 5555:80 --name pgadmin dpage/pgadmin4

Enjoy

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Stay Awesome,
Hussein

[matthewwiese]

This is a wonderful video! You inspire me to keep pushing!
A clever mnemonic (not my own) for remembering tar:
czvf = create ze vucking file
xzvf = xtract ze vucking file

[sanyk]

Whenever you start showing hands-on demo, you became a legend to me, you are genius on explaining things but hands-on demo make you super special. Keep up your good work.

[aubydauby]

Let me tell you- when I looked this topic up and saw you had a video in the search results, I felt instant relief. Dare I say, excited

[salmanmusa]

when ever I am looking for something and I see your video am excited that I have found what I am looking for

[mattbillman]

This guy's a natural teacher - thank you for the content! Made my life much easier.

[Ali_Alhajji]

how to remember tar flags:

tar -xzf eXtract Ze Files.
tar -czf Compress Ze Files.

[joaquinurruti]

Exactly what I was looking for and perfectly explained, thanks a lot!

[IBITZEE]

dude... when I'm searching for some topic video and I see one of yours... ;-)
I already like it first and then proceed to see the video... LOL!!!

[najisolayman]

Hussein god bless u with this information

[MrOmarlive]

Thank you Hussein for your explanation, I tended to use docker volume for the exact same case you mentioned in 12:10

[okonkwo.ify]

This guy is funny. No dull moment with him lol

[islamsaied]

thanks Hussein, its so simple and clear .

[juansalcedo]

That's exactly what I was looking for, Thanks a lot.

[Maefcent]

Very well explained, & clear communication, - so many tech videos are created by people who are very difficult to understand. Thank you! :) ATB

[osazemeusen]

Sweet, Succinct and straight to the point

[rpzwkbw]

Great video! can you research more advanced topic? best way to work with postgres data migrations. When you have postgres db in one container and backend app on other container. Backend app on java (ktor or vertx or other lightweight backend framework even in pure netty)
1) What the best way to initialize initial database structure with all required extensions(ex timescaledb)
2) What the best way to migrate database data structure while your project evolving
Thanks!

[ammadkhan]

Hi Hussein, you are better than uni professor. Thanks for the video. I am wondering if it is possible to attach this volume of data to more than one postgres container for load balancing?

[rahul_bali]

Error: Database is uninitialized and superuser password is not specified.
You must specify POSTGRES_PASSWORD to a non-empty value for the
superuser. For example, "-e POSTGRES_PASSWORD=password" on "docker run".

You may also use to allow all
connections without a password. This is *not* recommended.

See PostgreSQL documentation about "trust":

[AbdullahKhan-hzyr]

Another fantastic informative vid... quick question, or better still a follow up vid request... how to extend this to concept to my NAS drive, i.e. NFS storage?

[russellbateman]

Good tutorial, but the PostgreSQL Docker container has changed, so you cannot easily follow along any more. You have to do stuff like add "--env POSTGRES_PASSWORD=password" to his command lines.