Learning Docker // Build Container Images

In this video, we will be diving into the world of Docker and containers, specifically focusing on how to build our own container images. This is an essential skill for software developers, sysadmins, and network admins, as it allows for customization and security improvements. We will also explore the concept of Docker layers and how to utilize layer caching to improve build efficiency. Don't miss out on this tutorial and join me as we learn all about building container images.
Kestra-*: github.com/kestra-io/kestra
Related Videos/Links
Part 1: • Learning Docker // Get...
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Timestamps:
00:00 - Introduction
00:35 - Why do we build Docker Images?
03:57 - Advertisement-*
05:56 - Build your first Container Image
09:50 - Understanding Docker Image Layers
13:26 - Build our second Container Image
18:55 - Container Image Layer Stacking
20:38 - Other Dockerfile Instructions
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[@GameDesignerJDG]

Building an image is one thing I haven't had to learn yet. I've made custom containers but never built them.

[@christianlempa]

Hope I got you covered :D

[@GameDesignerJDG]

@@christianlempa You did, you did.

[@christianpeyrusse794]

Thanks Christian for those clear explanations, always very interesting !!

[@chhunlykev4414]

Thank you for the refresher series, can wait to see more and more 🤩👏

[@sonubhagat6372]

Thanks Christina, finally, 🎉you made it, I'm waiting for next episode, related to containers security, run as

[@christianlempa]

Awesome thank you!

[@Glatze603]

A video about Kestra would be interesting!

[@christianlempa]

Maybe somewhere next year, I need more testing! But sure, that would be interesting :)

[@mtnsolutions]

Echt cool wie du das alles so leicht und einfach erklärst. Du hast wirklich eine Gabe. Danke sehr. Ich werde es auch versuchen

[@christianlempa]

Vielen Dank! Das tut so gut :D

[@_TbT_]

Thanks! Great series! 👍Looking forward to more.

[@christianlempa]

More to come!

[@Jimmy_Jones]

This is the one area along with docker networking that I still need to learn a bit more thoroughly. Thanks for the refresher.

[@christianlempa]

Thanks! Hope you enjoyed it :)

[@tcasex]

I'm excited to see the video on shipping it to a registry, and potentially docker networking in the future? Thanks for this series.

[@christianlempa]

Nice! Hope that I can get this out next year :D

[@webftpmaster]

Welcome baaaack!!!!!!!! KZbin was NOT the same for me without your videos!!!!! I hope you had some rest! Merry Christmas!! ❤

[@Rotzaff]

Genau im richtigen Moment kommt dieser Beitrag. Hammer. Ja dann kann ich mein connector nun per docker laufen lassen. .env file nach aussen setzten und dann reinkopieren lassen. Tiptop

[@christianlempa]

Haha danke! :)

[@Shadoweee]

Great video Christian!

[@christianlempa]

thank you so much :)

[@Bloome_BlueFolf]

I looove your tutorials and looking forward to the next.

[@christianlempa]

Thank you so much :)

[@Andy-xt6eh]

Amazing video. Its definitely helped to put the theory into practice. 100% looking forward to the security video and subsequent videos. This is a fantastic indepth series. Nothing is boring it is all very very interesting and useful

[@christianlempa]

Thank you so much! Hope I can continue this series at some point :D

Great tutorial. Thanks!

[@christianlempa]

Glad it was helpful!

[@Glatze603]

Very nice and well explained Christian 🙂

[@christianlempa]

THank you so much :)

[@VeryCreative481]

Hey Christian, I love that you do a docker series! Ironically I'm currently struggling to set up my VPS in a way, that the docker services are only available within the docker network. Why would one want that? Well because only I want access to these services via wireguard. I really hope that networking and "localhosting" on a Public VPS will be covered. Because there seems to be something which I'm not understanding yet.

[@zyghom]

amazing, I am just starting this journey

[@christianlempa]

You got this!

[@saintvittsdance]

Thank you, very usefull, as always!

[@Lunolux]

great video, nice explaination. thx

[@TonyKirkland]

Thanks for this. I just started learning Dockerfile last week.

[@christianlempa]

Glad it was helpful!

[@TonyKirkland]

@@christianlempa What is that providing 'intellisense' in your terminal?

[@SteveArv]

Very interesting. Building dockers was kind of a black hole for me. I always run dockers but never thought of building one. hmm now what's my next project.

[@christianlempa]

Awesome :)

[@ronm6585]

Thank you.

[@christianlempa]

You're welcome!

[@benjamink7311]

Awesome video Bro

[@christianlempa]

Thank you!

[@allisondealmeida]

Which distribution do you think is safer when creating virtual machines to be used in production?

[@christianlempa]

I don't think there is such a thing. It always depends on what you're looking for? Stability, Features, Management, Policies, ... for every task there is a distribution :)

[@digitallova]

Hello can you please provide a guided tutorial for how to deploy kestra on a vps, i encoutred some problems using the provided docker-compose file which probably needs to be modified (network i guess) to make kestra work on a publicaly available VPS. thanks.

[@RazoBeckett.]

keep going sir, i wanna be sysadmin i need learn this

[@denniskluytmans]

I was a sysadmin, now I'm an IT consultant. You rarely use docker you also are not building containers. It's very nice to know, very gun to do. But as sysadmin you mostly use windows. Devs build containers

[@sabinopereira1631]

Hey man, I love your terminal. Any guides on how to get it for myself?

[@christianlempa]

Look out for my videos about "Warp Terminal" :)

[@ralkey]

what is that terminal program called? it seems so nice to have executed commands go down instead of up.

[@christianlempa]

it's called warp

[@tyler4723]

Hey what auto-complete tool are you using here? Super nice that it just has a drop down menu with all the options!!

[@christianlempa]

It's Warp Terminal

[@tyler4723]

@@christianlempasweet thanks! Ima check that out

[@bas18872]

Wird es auch ein umfangreiches Video von Kestra geben?

[@christianlempa]

Da bin ich mir noch nicht sicher, vielleicht im nächsten Jahr, aber kann und will nix versprechen

[@r.e.434]

i tried deploying a small python tool via docker but the container is super huge like 1.x GB for a super small py. how can i make sure that the container is lean?

[@fullstack_journey]

Don't use a very heavy base image

[@jzcalderon]

Try using Alpine images; almost every solution, such as Python, has an Alpine base image.

[@user-us8bd4ht9j]

Hey Christian, also ich dachte immer, dass bei dem COPY-Befehl einer der beiden Argumente der ZielOrdner selbst ist und das andere Argument die Datei ist, die kopiert werden soll? Verwundert mich daher etwas, wenn du COPY requirements. txt requirements. txt schreibst....

[@christianlempa]

Achso, ja das stimmt! Ich kopiere einfach nur die selbe datei aus dem gleichen ordner, du kannst natürlich auch die datei in ein anderes verzeichnis oder mit einem anderen namen kopieren.

[@Jason.M]

So how do you create a "base image". Someone somewhere is making them. Future episode?

[@christianlempa]

Good question, it's not a priority item, but would be interesting for sure!

[@sihker]

Damn, I was expecting to see buildah instead of docker builder :)

[@mikhailgoussarov4663]

You should do a udemy course

[@christianlempa]

I don't like udemy, but you can still support me on Patreon :)

[@Kabodanki]

It's possible to talk about container without ever saying the word Docker once.