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Lets Do Coding

Lets Do Coding
YouTube Video UCQCzjgSa3yBeV1BIYYLf61A_kR4U6LR47z0 I build my own Free Serverless Backup Service for my shared hosting using AWS Lambda and S3. This is purely serverless solution and works very effectively for MySQL databases or mariadb Databases Shared Hosting and is very effective and efficient. This solution uses Lambda to fire up compute and can be triggered : 1. On Scheduled Time 2. From Pipelines 3. From webhooks Source code is available at: https://github.com/letsdocoding/mysqlbackup-lambda Chapters 00:00 - Intro 00:29 - Motivation - Why Need it ? 02:53 - Architecture 05:20 - Features 08:39 - Code & Docker 12:16 - ECR & Docker Publish 17:55 - Lambda Deployment 23:05 - Testing 25:00 - CRON Setup 28:18 - Thanks :)
I build my own Free Serverless Backup Service for my shared hosting using AWS Lambda and S3. This is purely serverless solution and works very effectively for MySQL databases or mariadb Databases Shared Hosting and is very effective and efficient. This solution uses Lambda to fire up compute and can be triggered : 1. On Scheduled Time 2. From Pipelines 3. From webhooks Source code is available at: https://github.com/letsdocoding/mysqlbackup-lambda Chapters 00:00 - Intro 00:29 - Motivation - Why Need it ? 02:53 - Architecture 05:20 - Features 08:39 - Code & Docker 12:16 - ECR & Docker Publish 17:55 - Lambda Deployment 23:05 - Testing 25:00 - CRON Setup 28:18 - Thanks :)
In this video we shall see SSL or TLS handshake using RSA Key Exchange. TLS Handshake is very important concept. We are covering RSA Exchange, which is more simpler to understand but the idea is to just get the concepts rolling. Once the basics are understood, EDH or any other handshake is simple to understand. This SSL / TLS Handshake is Explained in 12 minutes should be sufficient to understand the basics of handshake. Watch the other videos on LetsDoCoding mTLS Concepts in 15 minutes - https://youtu.be/d_agHaKaiX8
What is mTLS or Mutual TLS. We shall see in this video what is mTLS, where is mTLS, used, where its not used and most importantly why is mTLS used in under 15 minutes. Normally TLS there is only one pair of public private key pair being used, in mTLS however, both the parties in communication have their own pair of public and private key and they validate each other. Whether you are in a zero trust environment, or you are working on a distributed system or microservices, mTLS is now used everywhere. Mutual TLS is very important concept from a solution or system design interview perspective. We shall be seeing all the mutual TLS Concepts and get the mTLS explained in 15 minutes (actually less) Index: 0:00 - Intro - What is in this video 0:40 - Context 1:00 - Basics 1:10 - Public Key Encryption 1:44 - TLS Certificate 2:39 - X.509 Certificates 3:22 - TLS Handshake 4:18 - mTLS vs SSL 5:02 - Back to TLS Handshake 7:30 - mTLS vs TLS 8:30 - TLS Versions 9:17 - Root CA in mTLS 10:14 - Certificate Authentication 10:25 - Where to use mTLS 11:10 - Why mTLS 11:35 - Why not just TLS 13:40 - Closure
Learn the basis of Cloud Architecture in this video with strategies to move any project to cloud. In this video we shall see what is 7R strategy for cloud migration and Digital Transformation. Be it any project of Digital Transformation (Rearchitecting) or Cloud Migration, as an Architect and an Engineer, you must know these defined strategies. The Strategies, namely Rehost, Replatform, Refactor, Relocate, Repurchase, Retire and Retain have evolved out from the the initial 5 R strategies defined by Gartner in 2011. This is also very important topic from system design and solution design interview questions and asked a lot of times. Index: 0:00 - Intro 0:55 - Phases in Cloud Migration Journey 1:51 - The 7 Rs 02:55 - Rehost 04:02 - Replatform 05:40 - Refactor 06:38 - Relocate 07:08 - Repurchase 08:43 - Retain 09:17 - Retire 09:33 - Closing Points
In this video we will be integrate PlantUML with Azure Devops pipeline. We shall be doing complete PlantUML Continuous Integration with Azure Devops, Jenkins and Bash scripting and combined together it gives a flow to update the diagrams on the fly whenever the code in plantuml file is changed. Although this video is based on Azure Devops, but more or less the approach can be used with almost any CI platform, be it Gitlab or Jenkins or plain Github Actions. Also, the approach is very powerful and must have skill in your toolkit. It can be used in almost any scenario where post processing is needed based on certain action. Check out the Masterclass for PlantUML at: https://youtu.be/JqJpbNxIK90 Complete PlantUML series available at: https://www.youtube.com/watch?v=JqJpbNxIK90&list=PL3TuugVsz1mMSMpH5IYtNhoDtV8icdtqH Source Code available at: https://github.com/letsdocoding/youtube-content-sources/tree/main/plantuml_ci Index: 0:00 - Intro 1:44 - Precap & Context 4:15 Setting up Azure Devops 5:40 - Updating local file 7:30 - DockerFile 9:55 - Validate Docker build 11:50 - Setting up the pipeline 13:22 - Shell Script 15:15 - First build 16:05 - Adding GIT PAT to Pipeline 18:55 - Using PAT in shell script 20:50 - Fixing the GIT 21:38 - Fixing the shell script 23:00 - Final shell script 25:49 - PlantUML syntax Fixes 26:20 - Running the working pipleine 29:30 - Final Issue Block Cascaded Builds 32:00 - Closure & Thanks
In this PlantUml Themes Masterclas we shall see the plantUML Theming and make stunning and beautiful plantuml diagrams. We shall start with the basics on how the visual design works in general covering all the aspects under the hood and then proceed for how to use pre-defined system themes with just two words as well as how you can use your custom themes. This video does need some basic understanding of PlantUML since we would be focusing on the beautification part and not the actual design. There is a complete masterclass we did for PlantUML that covers all aspects from installation to rendering and targeted sequence diagrams which can be found here: https://youtu.be/JqJpbNxIK90 . Checkout the video to understand how you can generate sequence diagrams easily. Relevant Links: Source: https://github.com/letsdocoding/youtube-content-sources/tree/main/plantuml_themed Masterclass sequence diagram: https://youtu.be/JqJpbNxIK90 PlantUML CI Integration with AzureDevops - WIP/Coming Soon SkinParam All Attributes/Usage: https://plantuml.com/imgw/img-fccfb72c6712932336a7f7d2be0a525f.png PlantUml themes Gallery: https://bschwarz.github.io/puml-themes/gallery.html PlantUML Themes Repo: https://github.com/plantuml/plantuml/tree/master/themes Index: 0:00 - Intro 1:22 - Current Setup 2:35 - skinparam 5:10 - Using class type grouping 7:45 - Message Alignment 9:25 - Monochrome 10:42 - Handwritten Mode 12:40 - Themes 14:48 - Using Custom Themes 16:44 - Closure and Way Forward
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letsdocoding LetsDoCoding.Com @letsdocoding ·
24 Aug

Created my own #DatabaseBackup service on @awscloud #AWSLambda and #S3.For #SharedHosting relying on Hosting provider could be dangerous like last time @a2hosting was down for months due to ransomware and all sites gone

Create offsite backup for free
https://www.youtube.com/watch?v=kR4U6LR47z0

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letsdocoding LetsDoCoding.Com @letsdocoding ·
16 May

Temporal Implementation on EF Core is one of the most most beneficial code. Glad @dotnet team was so quick on providing the feature in EF.
Checkout the design and reference implementation with bootstrapping code here.

https://blog.letsdocoding.com/courses/entity-framework-core-complete-course/2022/simplified-temporal-design-using-entity-framework-core-6-0.html

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letsdocoding LetsDoCoding.Com @letsdocoding ·
4 Mar

Just creating a new B2C tenant on @Microsoft @Azure and realized Indian Regions are called JIO Indian regions. This is height of branding and marketing by @reliancejio. Whatever be partnership but putting name in region?

If @airtelindia uses @Azure it will be running on JIO 😂

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letsdocoding LetsDoCoding.Com @letsdocoding ·
4 Sep 2021

Checkout the amazon Introductory Post about Change Feed with Azure CosmosDb by @abhinavmisra27
https://blog.letsdocoding.com/cloud/azure/cosmos/2020/cosmos-change-feed.html

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letsdocoding LetsDoCoding.Com @letsdocoding ·
4 Sep 2021

Checkout the latest post on how you can build your CI pipelines for PlantUML diagrams. Uses
@AzureDevOps
but can be applied anywhere.

https://blog.letsdocoding.com/devops/2021/ci-pipeline-for-plantuml-diagrams.html

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