Learn about software system design and microservices. This course is a hands-on approach to learning about microservice architectures and distributed systems using Python, Kubernetes, RabbitMQ, MongoDB, mySQL.

✏️ Course from Kantan Coding. Check out his channel: https://www.youtube.com/channel/UC5UgemAz061hkjTFHOfxNpg

💻 Code: https://github.com/selikapro/microservices-python

Kubernetes API Reference: https://kubernetes.io/docs/reference/kubernetes-api/

⭐️ Contents ⭐️
(0:00:00) Intro
(0:01:02) Overview 
(0:02:47) Installation & Setup?
(0:10:16) Auth Service Code
(0:32:25) Auth Flow Overview & JWTs
(0:53:04) Auth Service Deployment
(0:56:08) Auth Dockerfile
(1:20:05) Kubernetes
(1:37:26) Gateway Service Code
(1:42:34) MongoDB & GridFs
(1:47:04) Architecture Overview (RabbitMQ)
(1:49:50) Synchronous Interservice Communication
(1:50:49) Asynchronous Interservice Communication
(1:53:19) Strong Consistency
(1:54:07) Eventual Consistency
(2:19:16) RabbitMQ
(2:21:16) Gateway Service Deployment
(2:35:34) Kubernetes Ingress
(2:46:28) Kubernetes StatefulSet
(2:51:18) RabbitMQ Deployment
(3:09:35) Converter Service Code
(3:33:43) Converter Service Deployment
(4:21:09) Checkpoint
(4:22:11) Update Gateway Service
(4:31:46) Notification Service Code
(4:43:24) Notification Service Deployment
(4:51:55) Sanity Check
(5:05:54) End

⭐️ References ⭐️
https://www.mongodb.com/docs/
https://www.rabbitmq.com/documentation.html
https://docs.microsoft.com/en-us/azure/architecture/patterns/competing-consumers
https://docs.microsoft.com/en-us/azure/architecture/microservices/design/interservice-communication
https://cloud.google.com/datastore/docs/articles/balancing-strong-and-eventual-consistency-with-google-cloud-datastore

🎉 Thanks to our Champion and Sponsor supporters:
👾 Nattira Maneerat
👾 Heather Wcislo
👾 Serhiy Kalinets
👾 Erdeniz Unvan
👾 Justin Hual
👾 Agustín Kussrow
👾 Otis Morgan

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

I've spent months building a platform to support my development of scalable web applications. In this video, I try to share the learning process.

My personal website has a lot behind the scenes that most people cannot interact with. I've written up a few microservices and decided to deploy them on kubernetes. Some may say that what I've done is overkill - but it really does simplify the workflow once its setup (and I don't have to rewrite my codebase in the future!)

The end result:
- Kubernetes cluster on digital ocean.. 3 nodes, a load balancer, and persistent volume
- nginx-ingress controller exposes services to the outside world (all other services are internal)

Microservices:
- jwt authentication server (security)
- hangfire background processing server
- MySQL database
- mailer
- front end

There is still a lot of work to be done. While most services are scalable - the database is not. Currently, our database is a single instance. I think someday I will need to deploy a MySQL cluster to support replication, etc. This was a massive topic to cover in a single video so I could not explain everything, my hope is that people can take what they see and research further.

Technologies Used:
- CPU Intensive Backend: C# with ASP .NET Core
- Simple I/O Intensive Backend: Node js
- Database: MySQL
- Scheduler: Hangfire open source background processing library
- Authentication: JWT backed by Dotnet Identity
- Mailing Service: Sendgrid
- Integrations: YouTube, Github
- Deployment: Docker images w/ Kubernetes
- Front end: Next js / React

Hangfire (background processing): https://youtu.be/NRiVrZ_8vwA
YouTube Descriptions Updater: https://youtu.be/uKmjvCPllWQ
Next Video: https://youtu.be/l5VtPY7FBw4
Previous Video: https://youtu.be/eDjGBOxuuZs

Social
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Website: https://devoncrawford.io
Twitter: https://twitter.com/DevonCrawford13
Snapchat: https://www.snapchat.com/add/devoncrawfordyt
Instagram: https://www.instagram.com/devoncrawford_/
Github: https://github.com/devoncrawford
Discord: https://discord.gg/sU2fur9
Patreon: https://www.patreon.com/devoncrawford

Gear
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
- Video Editing Software (Premiere Pro CC): https://goo.gl/rKx66D
- All Adobe Apps (I use this plan): https://goo.gl/hrTYFS
- Keyboard (Velocifire TKL01) : https://amzn.to/2AQTjJQ
- Monitors (Dell U2518D) : https://amzn.to/2AQQmco
- Webcam (Logitech C920): https://amzn.to/2Cw588c
- Desk Microphone (Blue Yeti): https://amzn.to/2FPFmzi
- DSLR (Canon T7i): https://amzn.to/2T54mpZ
- Wide Lens (Tokina 11-16mm F2.8): https://amzn.to/2MlpvcO
- Full list of gear: https://devoncrawford.io/gear

Music
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Puar - GEMS W/ sin
Link: https://soundcloud.com/puarbeats/gems-w-sin

bob le head - gapintheclouds [ep] @ 6:52
Link: https://soundcloud.com/bob-le-head/gapintheclouds-ep

dis.joint - knock
Link: https://soundcloud.com/dis-joint/knock-3

A L E X - Easy Track (part of Growing Up, Vol.2)
Link: https://beatsupply.fanlink.to/growingupvol2

Platform for Scalable Web Apps | How I built my website with Kubernetes

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