Kratik Jain
Kratik's What Notes!💡

Kratik's What Notes!💡

Kratik Jain

Hey y'all 👋 Kratik Here :)

Hailing from The City of Lakes, India.

Will be sharing some stuff here which I love. Which is mostly about DevOps, Containerization, their Orchestration and Cloud.

Enjoy

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How to check if a Docker image already exists?

Pinned article
May 22, 20213 min read 220 views

Hello World! Excited to share my first-ever blog here. This is about how you can check if a docker image (with a specific tag) already exists or not. We'll divide this article into two parts (based on Types of Images): Public Images Private Docker H...

How to check if a Docker image already exists?

Best Solution for Collecting Logs/Metrics for AWS EC2

Nov 6, 20216 min read 58 views

🪔🪔🪔🪔🪔🪔🪔 Problems - Suppose you have a web server, deployed on AWS EC2. Now to check your app logs you have to SSH to that EC2 and then cat the logs. Or when you wanted to check some metrics for that EC2, you went to the built-in CloudWatch met...

Best Solution for Collecting Logs/Metrics for AWS EC2

How to prevent users from downloading files using S3 URLs

Oct 17, 20215 min read 54 views

Suppose you have some assets for your platform which is being served to your customers in form of MP4 videos, PDFs, Etc. I am assuming that data is important but not that sensitive, so this guide can be applicable for some specific use cases. For ea...

How to prevent users from downloading files using S3 URLs

Using Multiple Docker-Compose files

Sep 19, 20213 min read 241 views

I have assumed that you have some basic knowledge of Docker & Docker Compose! What is Docker 🐬 ? An Open-Source tool that can be used to bundle your application with all the required dependencies. Similar to VMs but way more lightweight than it. Us...

Using Multiple Docker-Compose files

What it means by adding a Security Group ID as a source in another Security Group ?

Sep 18, 20213 min read 29 views

At some places like Documentation and Tutorials, I have seen that In the source of a rule in the Security Group, they add another security group which seems weird 🤔 Attached a screenshot below : Okay, so this was pretty difficult for me to unders...

What it means by adding a Security Group ID as a source in another Security Group ?

What is Network ACLs in AWS Virtual Private Cloud?

Sep 12, 20214 min read 45 views

Network ACLs or NACLs are one of the additional layers of security AWS provides to safeguard your resources in the AWS Cloud. It acts as a firewall for controlling traffic in and out. Image Source: https://docs.aws.amazon.com/vpc/latest/userguide/...

What is Network ACLs in AWS Virtual Private Cloud?