How to Deploy a Flask App to a Linux Server with a Domain Name

In this video, I'll go over the steps you need to take for a bare minimum linux server deploy with your own custom domain name. For the web server I'll use Caddy, and for the app server I'll use gunicorn.
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Here are the install commands I used in the video:
sudo apt update
sudo apt install -y debian-keyring debian-archive-keyring apt-transport-https
curl -1sLf 'dl.cloudsmith.... | sudo gpg --dearmor -o /usr/share/keyrings/caddy-stable-archive-keyring.gpg
curl -1sLf 'dl.cloudsmith.... | sudo tee /etc/apt/sources.list.d/caddy-stable.list
sudo apt update
sudo apt install caddy
sudo apt install python3-pip python3-dev build-essential libssl-dev libffi-dev python3-setuptools
sudo apt install python3-venv
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Github: github.com/pre...

[@songokussj4cz]

Very big thumbs up for using gunicorn and not default flask server as others. Nice!

[@prettyprinted]

Definitely the more appropriate option. Thanks for watching!

[@sinancetinkaya]

thumbs up for centering a text in CSS :)

[@prettyprinted]

haha yeah I figured I shouldn't be so lazy to center my basic header text.

[@tadashi-kun4820]

It worked like a charm. Runs perfectly fine. Thank you very much!

[@dmbrv]

Awesome video. I didn't know that Caddy will automatically get a sign certificate from Let's Encrypt

[@prettyprinted]

Yeah Caddy makes things really simple. Thanks for watching.

[@mahboob82]

Well organised contents! Thanks for making it easy for us.

[@benjohnson5897]

Thanks! Very useful, but it reminded me why i simply code and deploy on Replit. I dont have enough patience for all this stuff! 😂

[@EddiKh]

Is there a tutorial on security configurations and firewall? and great video! exactly what I was looking for

[@jazz8932]

after installing caddy and going to the IP address I see no response?

[@eboyd53]

Can you please add the notes to your github repository for the video? Unfortunately KZbin shortened the URL in your two lines making it difficult to copy and paste. I had to click on the two URL to determine what it should have been to continue.

[@prettyprinted]

Here you go: github.com/PrettyPrinted/youtube_video_code/tree/master/2023/07/17/How%20to%20Deploy%20a%20Flask%20App%20to%20a%20Linux%20Server%20with%20a%20Domain%20Name

[@honzabe]

@@prettyprinted I might be missing something but I do not see the notes the OP requested in the document you linked. I also think they could be useful - KZbin shortened URLs in your notes here so the commands copied from KZbin do not work unless you reconstruct how they looked like before the shortening. Some people might get confused by it (ehm, "some people", like me).

[@eboyd53]

Thanks for the video and instructions. BTW, you could use ``pkill gunicorn`` to kill the application if the pkill command exists.

[@prettyprinted]

Thanks, I should have checked if pkill was there. Thanks for watching!

[@jakobseitz1176]

note: the curl commands didnt work for me, but caddy still worked fine. But I also used a v-server from netcup

[@iconjack]

the curl commands in the description got mangled by youtube-you'll have to type them in from the terminal on the screen

[@VictorsTravelvLog]

exactly what i needed!

[@houseofsharks]

Hello, i have an oracle free tier instance running ubuntu with some websites (php) hosted (with their own domains) by cloudpanel. If i do exactly like you did. My other websites will stop working?

[@infossil]

thank you, worked perfect

[@marcosoliveira8731]

Huuuuge thanks man!

[@TaylorNelson1]

Wow so easy. Is gunicorn good enough, by itself, that I do not need to use other hacks via apache and wsgi?

[@asmasaduf6257]

when i did gunicorn app:app Iget this error "from gunicorn import util File "E:\sid\TF-Image-Classifier-API\venv\Lib\site-packages\gunicorn\util.py", line 8, in import fcntl ModuleNotFoundError: No module named 'fcntl'"

[@dgoek]

Thank you so much this is very useful; I working on my website this contain a payment with paypal and this is working on visual studio code, however when I upload to lightsail server this is not working, I receive an error regarding authetication, however I thinks this is related with networking, maybe I am missing some configuration, any idea ?

[@rish9422]

would be this possible on Azure?

[@WaldoTheWombat]

How Anthony, will this work with a Flask app that uses web sockets?

[@curtking70]

Thanks!

[@prettyprinted]

You're welcome! Thanks for the super thanks!

[@shaunsharon6849]

What about in Windows?

[@HamzahAl-Hamadani]

i love you

[@tasmaniandaemon]

why not nginx

[@Kennethlumor]

Sir thank you for this tutorial. Please I request from you to make a video on how to connect Google auth to flask app. Because as am talking to you right now Google has taken or remove allow third party integration. That is very hard for me to do now. So please and please I'm begging you in the name of God to make a video on that.

[@prettyprinted]

I'll look into Google auth. Thanks for watching!

[@anony88]

Why does my comments keep getting removed on youtube.. 😑

[@redsword7192]

hehe