Microservice Architecture and System Design with Python & Kubernetes - Full Course

[@OneStopMusic.]

To anyone who is in dilemma of watching or not watching this video, let me help you make a decision. I did watch this video and it's really a good video. Explanation is on point. There are really good technologies being used and you don't have to put in too much effort to understand it. So if you are interested in learning a micro-services arch then this video will really help you out.

[@haojieshu1294]

This might be the most valuable video I have watched over the years. Flask, MongoDB, k8s, microservice, mq, those are all new concepts for me, but you made it so clear to learn. Appreciate all the hard work.

[@LAKD]

Your teaching skills is beyond excellent. The fact you can teach something this complex, and make it sound beginner friendly is extremely hard to do. You help visualize, and most importantly repeat every step with a new significant step, that's something extremely valuable. Thanks for explaining, and I'll certainly subscribe to your personal channel.

[@Asmr-satisfying-zzz]

Thanks kantan coding and freecodecamp for making such informative video.

[@SD-vk3ko]

5 hours in 5 days, and at last day, so happy to see the email.. Awesome work done @kantan Would love to see more of such these videos... Thank you so much

[@PetritK10]

One of the best course ever about K8s, it helps me to understand CKAD exam better

[@hiconnor1321]

Great to finally see Kantan Coding on here. This tutorial and all his others are top tier

[@kantancoding]

@Somtoklinsnot sure why you keep commenting that this is for advanced learning. I’d argue that it’s pretty accessible to anybody with a basic understanding of Python 👍

[@palaashatri]

this is actually a really valid real world project. i have been working on a similar microservice, although its made with Java EE, and needed a deep dive on some concepts. Thank you so much freeCodeCamp!

[@ChrisSanten]

Did you complete this video lesson successfully?

[@palaashatri]

@@ChrisSanten yes

[@AndrewAkaHrun]

Very nice tutorial. I wish only you’d start building Python modules with unit tests instead of testing the code manually. Also, I noticed you’re tagging your containers after the build by copying the build reference into the terminal. One way of simplifying your workflow with containers is to add the tag command right to the build like so: “docker build . -t repo:tag1 -t repo:latest”. Your great educator and a lot of inspiration. Keep posting the videos!

[@ericblancas8113]

now this is a course worth waiting for. Would also love to see more terraform content and possibly stuff on gRPC services

[@ChrisSanten]

Did you complete this successfully?

[@ericblancas8113]

@@ChrisSanten I was able to complete this successfully at the time!. Great course and gave me a good understanding of the System Design portion

[@ChrisSanten]

@@ericblancas8113 Great to hear thank you for responding!

[@elcaciquedev]

The architecture design is simple yet effective enough to only be missing a couple more metric and security services, to be a perfectly viable "production" ready solution for any application.

[@ChrisSanten]

Did you complete this tutorial from start to finish successfully?

[@Anaghish]

Can you tell me more about what metrics and security services you think would be useful here? Thanks!

[@bhavasagar977]

@@Anaghish To serve a Flask app on production we need to use WSGI server like Gunicorn and we need to hash passwords to store them not as strings into the database. I don't know much about docker and Kubernetes.

[@pajeetsingh]

False. I literally became a trillionaire watching this.

[@konstantinpalagachev1573]

Thanks!

[@lloparyllopary]

Wow, thanks for this tutorial. I'd never used kubernetes before, but I will start using it for my servers!!! Good explanations' teacher!!!

[@ChrisSanten]

Did you complete this tutorial successfully?

[@lloparyllopary]

@@ChrisSanten Hi, I only used the tutorial for the kubernates part, and this part it worked fine

[@ChrisSanten]

@@lloparyllopary okay great to know thank you for responding, glad the kubernates part worked fine.

[@dharavathsuresh8838]

There is a sense of satisfaction after completing the video. Thank you so much.😊

[@rafaelparpinelcavina]

So clear ! Thx very much for this amazing video. Good explanations and useful parenthesis where he explains to you that “in production, this part here should be done this other way” and so on, he makes sure you get the concept and what has to be done differently when going in production. Thank you again :)

[@sreejeshraj4800]

Hello FreeCodeCamp, your videos have helped me a lot. One request - while there are people advising to go, read and contribute to open source code for better experience (like reading Spring source code), I think it will be better if there is a tutorial created by someone who can walk through a real open source project and explaining it. That will greatly help many developers in my opinion. Please create a series of possible, thanks.

[@jonathankee9322]

Well good luck... why not just look for smaller Fish? Spring has too much abstraction, I am not even going to attempt it lol. I think something like Opensource Java projects on a smaller and reasonable scale like Minecraft development is the way to go for me.

[@Adil-dp4ll]

what a course !! I have been looking for a complete deployment of MSA project. kudos.

[@kegklaus5069]

I wathced 5 giant hours long video that was amazing! Thank you FCC & Kantan Coding!

[@cnkumar20]

5 hours of Most Solid Content.

[@ankansharma4897]

GOD level teaching. I will be extremely interested to buy your course if in future you create a microservice course with 50 to 60+ hours of content. Explaining in microservice in depth and with big capstone microservice project. I wish you do. And thank you for such great explanation.

[@sunilshah300]

I just know that the guy is a developer since he keeps on saying this thing is not the scope of course.

[@kantancoding]

😂😂 this killed me

[@RahMus-d8s]

Very nice tutorial. A few points that I see here that would *vastly* improve it: 1. Test, test, test! There's coding for 5 hours with no checkpoints in between to test the implementation and functionality. 2. As others have pointed out, MySQL and MongoDB should have been also services in the cluster instead of instances on the local machine. This kind of defeats the purpose of 'microservices'. Either go the whole way or not at all. 3. The file handling (upload and download), should also be separate services. The API gateway responsibility should be to only relay the message from the client to the correct service endpoint. E.g.: user logs in, API gateway calls the auth service. user wants to upload/download, API gateway calls the file_handling service, etc. But great nevertheless. I hope to see more of these high-level, project-based, system design tutorials!

[@maorb1703]

This is the BEST!!! video I have ever seen so far 🔥🔥🔥 Amazing video, as well as great level of explaining the material. I really appreciate your work, and hopefully you'll post another python project soon!😁

[@duckhanhnguyen6921]

best k8s video I have ever seen !! thanks bro

[@ketankolte4776]

This content is exactly what I was looking for...

[@olter1000]

Incredible explanation style. Thank you so much, so clear.

[@cho7777]

Very good course! So many interesting technologies in just one tutorial! It was also very helpful, to see how you fix errors and what your stategies are doing this.

[@francisboafo7190]

You guys are the best channel ever!!! Hands down!!!

[@mamamiakool]

More power to you, to build and explain in such great detail for the community. Keep up the good work brother !!!

[@nikolaykoychev8261]

Great video, I learned so much about how microservices work using python! Thank you for taking the time to explain it in a clear and easy-to-understand way. I appreciate your hard work and dedication to helping others learn about this important topic. Keep up the amazing work!

[@carlostrebbau2516]

Great tutorial. No fuss. Second part on deployment would be greatly appreciated.

[@suwonpark792]

Would just like to point out that I couldn't didn't hear any instructions to download MongoDB on my local at the start of the video and hence was getting connection refused error in my kubernetes container. After downloading mongo on my local, it worked. Perhaps you would like to add that in at the start. Some environmental variables like server.config["MYSQL_PORT"] = int(os.environ.get("MYSQL_PORT")) needed to add an int infront. Overall, the video concepts were very well explained and I really learned alot. Thank you for your hard work.

[@yusali4969]

I also stuck at the MongoDB part, do you still remember how you fixed the MongoDB not instantiated issue? Thx!!

[@suwonpark792]

i just installed mongo on my local. cos when i rewatched it i understood that he is hosting the mongo on your own local and not in k8.@@yusali4969

[@vijaykumarpendem3509]

@@yusali4969 replacing mongodb://host.minikube.internal:27017 to mongodb://localhost:27017 worked for me after running mongodb locally

[@samueldinkayehu2437]

watching this video with only a basic understanding of the topics covered is like flying a plane after seeing it for the first time

[@JIHYELEE-h2m]

I finished this video until mp3 queue have NACK (meaning that notification has problem). I don't wanna resolve notification part and make another acc its bothersome i feel. So just finished it lol. Thank u so much. Before interview, I watched this, and could answer questions about k8s and how to debugging it. If I passed the interview, I will comment it later about result.

[@pradyumnjain1578]

19 days and I am finally done : )

[@Sandeep-zd6dq]

Finally system design tutorials started 🙌

[@litergame]

I just stumbled across this treasure!! Thank you!

[@marzicout5777]

Many thanks for this very good tutorial !

[@adityanjsg99]

This channel is a blessing

[@rohitsharma-mg7hd]

very good tutorila, completed full and working fine

[@HimanshuKumar-xz5tk]

this was a great video overall. would like to see more of these that teach us new architectures/technology

[@osamaansari1232]

We need this type of course with C#. ASAP

[@antonadjei]

if you get an error installing the mysqlclient (pkg-config not found), add pkg-config to the apt-get install step in the Dockerfile

[@terryyang5254]

it worked, thanks. ( dockerfile :build-essential default-libmysqlclient-dev \ pkg-config \ && pip install --no-cache-dir --upgrade pip)

[@tamimi724]

This is a great tutorial, thanks for sharing all the knowledge!

[@GoodProgrammer92]

Amazing work. Note for next videos: Why don't you use an IDE? Adds a lot of clarity on the dir structure.

[@DhinuCPhilip]

thank you sir, for such wonderful knowledge.

[@nattajab]

Thanks so much. I learn this topic with fun !!

[@pradyumnjain1578]

Two weeks in and half way through

[@AntKazak650]

Thanks for amazing tutorial, very clear! One thing that I would like to see is tests for the code

[@Cadambank]

@30:30 there is no need for checking the username again as the data is fetched using the auth.username. better would be to use aith.username and auth.password in where clause and check only rowcount.

[@ShrivastavAditya]

Correct 💯

[@badinenisaivardhan4774]

great video... worth watching and in detail with message queues

[@coledrain2158]

God bless you bro. This was really helpful.. 💪

[@MrDandiya]

Bro all I can say is I love you.

[@jehadok2582]

keep going guys thanks for free course

[@vivekr.k7950]

Your course is awesome, i really liked it. But i have one request, you are using vim and editing it an individual file it hard to trace. If you using nerdtree from beginning of the video it will very help full for audience. Thanks for the video

[@sergsergesrgergseg]

perfect timing i was just trying to figure this out for the past week

[@mebaysan]

Thank you fcc. This is what really I am looking for it.

[@shaansharma2504]

very very very very nice stuff and i salute you, respect

[@albertwang5974]

Thanks for such useful tutorial!

[@po6577]

i had not stared yet, but i sound amazing already

[@SaadullahKhan-y9o]

content is good, but course is quite a fast track without any validation step while creating things but really appreciate your efforts. Thanks

[@nirmesh44]

best ever i have ever seen👍👍

[@ChrisSanten]

Did you complete this successfully?

[@Ryguy12543]

great teacher. thanks.

[@RahulRaj-jc7os]

Bro made whole microservice in just command line. God level.

[@ShrivastavAditya]

VS Code is better. Gets the work done in less keystrokes

[@matlabnewbie]

Thanks for the excellent course! Btw, your Vim looks super cool. Would you mind sharing your vimrc file?

[@EiRA-hiE-x]

Wow this is literally what I want ty

[@manikantapunnam1189]

Thanks very much, sir. Excellent Explanation.

[@michaelelumeev5125]

Don't forget to use "brew services start mysql" prior using mysql

[@ПавелКоломыткин]

Thanks for the video, very interesting. One thing I'm not sure about. As known the shared database is a sort of anti-pattern, and here the same MongoDB is being used in several services directly. Is it critical to put a service's db behind the service's API?

[@pajeetsingh]

I literally became trlionaire watching this.

[@hamzazahidulislam3490]

Thank you so much 😊

[@0xphsi]

Followed along with the tutorial until 3:49:00, not able to get back a JWT when curling the login endpoint, just receiving a 500 internal server error: "The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application." Anyone having a similar problem?

[@jason-hm4jf]

Hi, I got the same problem, Did you solve it?

[@daemyeongkang416]

Same problem here!

[@xendu-d9v]

same bro

[@0xphsi]

I haven’t been able to solve it. Anyone else know of a solution to this problem?

[@kshitijdesai2402]

same stuck here😪

[@booleangray2225]

Thanks for bringing us this tutorial. Awesome work! Keep it up Kantan Coding and FCC. What is the Terminal theme you are using? It looks marvelous.

[@pajeetsingh]

1:41:45 Why are you storing media as raw binary on a database? Isn't the standard is to store media file in file system and only store the path of media file db?

[@nitishveera1010]

very very helpful

[@ricardovelasquez2283]

Bravo... Conteúdo maravilhoso. Ter outra fonte de renda nesta recessão econômica deve ser prioridade em cada livro de jogo de indivíduos. Pode ser bastante difícil acumular lucro sem um bom conhecimento ou orientação adequada, por isso é aconselhável trabalhar com um consultor de investimentos.

[@Jorge-eduardo49]

@Lorenzo pique Acho válida sua opinião. Os sinais de flutuações comerciais precisam de muita experiência para atingir a perfeição. Para evitar perdas, é aconselhável trabalhar com um especialista.

[@ricardovelasquez2283]

Bem, eu não sou um especialista e não posso ajudar. No entanto, recebi ajuda da Sra. Ana Davies, empregar seus serviços para gerenciar e negociar meus ativos foi a melhor decisão que tomei. Estamos em contato há 14 meses e contando.

[@juantapia408]

Já ouvi muito sobre ela no LinkedIn. Meu portfólio mostra zero ou nenhum sinal de melhora, como posso contatá-la?

[@ricardovelasquez2283]

@@juantapia408 Você pode se comunicar com ela usando o identificador abaixo

[@Mouni_MahendraNath]

Thank you so much ❤❤❤🫡👍👏🤩👌

[@bhanumalhotra8605]

Can somebody help me with an issue at 4:12:43 here i am getting an error 413 which is basically file size is too large, i have tried uploading a file which is under 100kb still it is giving me the same error.

[@mhouney]

Did you solve the issue? I have the same one. Already tried to set some variables for configuring the maximal file size but it does not work. :(

[@herbe13]

thank you!

[@Abel_Lopez_]

Great! Congratulations!

[@mohitmishra3091]

You guys are demi-gods ❤️💫

[@IndianCoders]

Nice Tutorial

[@nirmesh44]

great tutorial. how are you getting hints in vim editor while writing code?

[@mitakshgupta]

@kantan coding - Excellent course. PS - What plugins are you using in your terminal?

[@michaelelumeev5125]

Amazing course, but it seems to me that the part where the configuration of the local MongoDB is shown is kinda missing. Believe it or not, I have sifted through all manifests trying to find it, and then decided to start it locally.

[@ChrisSanten]

Did you complete this tutorial video successfully?

[@michaelelumeev5125]

@@ChrisSanten Yup, without any issues. Actually there was one and I have also highlighted it in the comments.

[@ChrisSanten]

@@michaelelumeev5125 Good to know, thank you.

[@seanoverton798]

lol yeh I was going along wondering about this

[@topics305]

Yayyy!! Really needed this type of project.. thank you FreecodeCamp

[@brunodepaula5293]

Great tutorial. Any reason for not having the mongo db inside a pod and a volume claim for that also?

[@victormungai]

Your terminal setup please? It looks cool!

[@PieterKuppens]

That's also my question! How did you set up vim to use pylint? Is the checking 'live' or do you use a keyboard shortcut? Or on a completely different level, is there a config for Visual Studio Code, which seems a bit more user-friendly and cross-platform. Though I'm a dinosaur that actually knows and uses vi(m) when I'm working in text terminals on UNIX-based systems. PS. I'll forgive that you store passwords in plain text instead of with a salted hash ;)

[@godataprof]

Using Kafka as the producer and consumer would have been great.

[@dkq986]

You guys are awesome 😎😎

[@RonelldRegen]

Great tutorial, thank you so much. How did you get this eyecandy behaviour of vim? Having code completion for Python is great. Could you eventually provide your vimrc file?

[@terryyang5254]

51:45, when I am doing this project, this argument name is algorithms with an 's'

[@dawid-bobowski]

I have a problem whenever I try to upload a file. It always ends with "internal server error, 500". I managed to dig deeper and retrieve an error regarding host.minikube.internal:27017 and connection being refused. I run this on Windows using Docker and minikube. Has anybody had a similar issue? PS thank you, Kantan, for this amazing tutorial and sharing it with us for free. It helped me a lot to understand some K8s concepts as well as learn a bit of Python.

[@dawid-bobowski]

It turns out I must have skipped the part where MongoDB was installed on the local machine. Problem solved.

[@dawid-bobowski]

Also I had an issue with sending /upload requests one by one. Every time the connection to RabbitMQ was reset and gateway kept sending internal server error. What I did was to set up a new connection, every time /upload was called and close it at the end.

[@jimlin2865]

@@dawid-bobowski Hi, do you know where the part is? or there isn't one. So you manage to solve the issue by install the mongoDB? What is your configuration ? Thank you for your response!

[@jimlin2865]

Dawid ~ I am having trouble to fetch the JWT, and I think it is the problem regarding the MongoDB. Please let me know if you are interested to discuss with me! That would be very helpful. Thank you :)

[@dawid-bobowski]

​@@jimlin2865 hi Jim, as much as I'd like to try and help, KZbin keeps removing my comments with contact info. I quickly went over the video again and couldn't find that part about MongoDB. It looks like Kantan forgot about it or assumed we install it on our own. I did a basic installation with all default options, applied all the manifests again from scratch and it solved my issue.

[@ArvindSingh-iq3lg]

I was waiting for this. Thanks

[@lollipop2748]

Very good 😊

[@xendu-d9v]

thanks fcc & kantan

[@alexandergawrilow4684]

Thanks for the video, I appreciate it very much and I learned a lot. One question: what is the point of creating packages with one module in them? For example in gateway instead of having the package auth with the module validate, why not leave out the package auth and just use the module validate?

[@regiapriandi]

Thanks, I followed it from beginning to the end of the video, Thanks freecodecamp for the knowledge, I'm trying to develop the database using postgresql as the authentication database and mongodb as the database file in the kubernetes deployment.

[@ChrisSanten]

Did you complete this tutorial successfully?

[@futhedude4848]

about the micro service gateway, this tutorial is created it own gateway and connect through http to other service.

[@SkynerGaming]

Dude where did you start the mongodb, I've been running around circles trying to find it 🙂 Thanks!

[@kaushikdey6333]

yeah me too, apparently he didn't mention that in the video.

[@SkynerGaming]

​@@kaushikdey6333 I followed the instructions in Mongodb official website and was able to have it up and running

[@kaushikdey6333]

@@SkynerGaming one more problem tho [spoiler alert] : When he enables insecure authentication for google account, its just not there when I check for it.

[@SkynerGaming]

@@kaushikdey6333 Ah yeah gmail changed that and you can no longer do as he says in the video. There are other ways of supplying a notification though, I think it's actually a good opportunity to come up with something by yourself 🙂

[@josephbtech]

@@SkynerGaming could you please explain the setup steps?