Create Your Own Container Using Linux Namespaces Part-1.

In this lock-down, everyone has to maintain a social distance and in this trying time, we can learn from docker to isolate ourselves. So before that, we need to learn how docker does it?
The best approach to learn is to simulate it. For that, we’ll be creating our own container tool for the application to isolate itself.

Self isolation | SpongeBob SquarePants | Know Your Meme

 

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Preserve Source IP In AWS Classic Load-Balancer And Istio’s Envoy Using Proxy Protocol

Preserving Source IP address is an important factor in a live environment because the IP address is one of the things which enables you to do some advanced stuff like:

Security: Security is an important factor which we cannot ignore. With the Source IP you can white list the access to the applications which are behind the internet-facing load balancer.

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Stash logs better with Logstash

Imagine you wake up one day, open your front door, and find huge wooden logs of different shapes and sizes placed in your front yard. On one of them is a note that says, “Well, here have ’em, all the logs, both structured and unstructured. Please deliver all the furniture by the end of the week or else … Now, if you’re inexperienced in “woodwork”, you need to start thinking. This is, more or less, how I felt when I was first assigned a task like this.

At the time, I faced a fair amount of difficulties bringing the logs from servers to visualize in kibana. The area which was most troubling and rewarding was figuring out logstash. This blog is a helpful summary of what I learned about logstash and how it helped. So, Ladies, Gentlemen, and others, sit tight and read on.

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Ansible directory structure (Default vs Vars)

 

Ansible directory
Defaults and vars

Ansible is one of the most prominent tools among DevOps for managing software configuration because of its ease of use and bare minimum dependencies. The highlight of this tool is Ansible roles which provide a wholesome package of various functionalities that we need for software configuration.

As we know that ansible roles have a wide directory structure that looks something like this.

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Terraform WorkSpace – Multiple Environment

Do you manage your infrastructure using terraform?
Are you duplicating your code for creating environments like DEV, STAGING, QA or PROD?
Are you tired of writing/managing different codes for your different environments with several complexities?

Well there is a native solution from terraform called as “TERRAFORM WORKSPACE”

Before we dive deep, let’s have a brief introduction to terraform

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Raktbeej Proxy

All we could think of imagining a routine day of a NOC guy is looking at all the fancy and colorful multiple screens around, but is this all it?

The answer to the above statement is NO! As a NOC, We have access to the information that is critical to analyze and plot company infra strength and on top of that, access to the servers and protected network makes the situation more critical if thing happens to be in wrong hands.

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Why GitOps is so exciting?

Initially, we had the DevOps framework in which Development and Operation team collaborated to create an agile development ecosystem. Then a new wave came with the name of “DevSecOps” in which we integrated the security into the existing DevOps process. But nowadays a new terminology “GitOps” is getting famous because of its “Single Source of Truth” nature. Its fame has reached to this level that it was a trending topic at KubeCon.

Continue reading “Why GitOps is so exciting?”