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Top 25 Active Chatrooms for DevOps Engineers like You

As the tech stacks are becoming more and more complex and business is moving at a fast pace, DevOps Teams worldwide...
Ajeet Raina
1 min read

How to build a Sample Album Viewer application using Windows containers

This tutorial walks you through building and running the sample Album Viewer application with Windows containers. The Album Viewer app is an ASP.NET...
Ajeet Raina
3 min read

How to efficiently scale Terraform infrastructure?

Terraform infrastructure gets complex with every new deployment. The code helps you to manage the infrastructure uniformly. But as the organization grows,...
Ajeet Raina
5 min read

What are Kubernetes Replicasets? – KubeLabs Glossary

How can you ensure that there are 3 Pods instances which are always available and running at one point in time?...
Ajeet Raina
7 min read

Top 6 Docker Security Scanning Practices

When it comes to running containers and using Kubernetes, it’s important to make security just as much of a priority as...
Ajeet Raina
3 min read

Shipa Vs OpenShift: A Comparative Guide

With the advent of a popular PaaS like Red Hat OpenShift, developers are able to focus on delivering value via their...
Ajeet Raina
6 min read

Top 5 Docker Myths and Facts That You Should be Aware of

  Today, every fast-growing business enterprise has to deploy new features of their app rapidly if they really want to survive...
Ajeet Raina
5 min read

How to control DJI Tello Mini-Drone using Python and Docker

If you want to take your drone programming skills to the next level, DJI Tello is the right product to buy....
Ajeet Raina
4 min read

5 Minutes to AI Data Pipeline

According to a recent Gartner report, “By the end of 2024, 75% of organizations will shift from piloting to operationalizing artificial...
Ajeet Raina
2 min read

Getting Started with Terraform in 5 Minutes

Terraform is an infrastructure as code (IaC) tool that allows you to build, change, and version infrastructure safely and efficiently. This includes low-level...
Ajeet Raina
5 min read

Top 5 Effective Discord Bot For Your Server in 2022

Discord is one of the fastest-growing voice, video and text communication services used by millions of people in the world. It...
Ajeet Raina
3 min read

What is Kubernetes Scheduler and why do you need it? – KubeLabs Glossary

If you are keen to understand why Kubernetes Pods are placed onto a particular cluster node, then you have come to...
Ajeet Raina
5 min read

Using dd command in Linux

In the world of Linux, there are many powerful and versatile tools at your disposal for various tasks. One such tool...
Karan Singh
2 min read

How to build and run a Python app in a container – Docker Python Tutorial

In May 2021, over 80,000 developers participated in StackOverFlow Annual Developer survey. Python traded places with SQL to become the third...
Ajeet Raina
5 min read

5 Best Redis Tutorials and Free Resources for all Levels

If you’re a developer looking out for Redis related resources, then you have finally arrived at the right place. With more...
Ajeet Raina
3 min read

Running Automated Tasks with a CronJob over Kubernetes running on Docker Desktop

Docker Desktop 4.1.1 got released last week. This latest version support Kubernetes 1.21.5 that was made available recently by the Kubernetes...
Ajeet Raina
3 min read

How to setup GPS Module with Raspberry Pi and perform Google Map Geo-Location Tracking in a Real-Time

NEO-6M GPS Module with EPROM is a complete GPS module that uses the latest technology to give the best possible positioning...
Ajeet Raina
7 min read

How to Create a Perfect Resume for a Startup Company?

Creating a resume is the stepping stone and the biggest challenge you face as a fresh graduate.Many of them prefer entering...
Ajeet Raina
2 min read

Top Kubernetes Tools You Need for 2022- Devtron

Thanks to Collabnix community members Abhinav Dubey, Ashutosh Kale and Vinodkumar Mandalapu for all the collaboration and contribution towards these blog post series. What’s the biggest benefit you’ve...
Ajeet Raina
4 min read

Top Kubernetes Tools You Need for 2021 – K3d and Portainer

Thanks to Collabnix community members Abhinav Dubey, Ashutosh Kale and Vinodkumar Mandalapu for all the collaboration and contribution towards this blog post series. In the last...
Ajeet Raina
6 min read

Getting Started with Docker and AI workloads on NVIDIA Jetson AGX Xavier Developer Platform

If you’re an IoT Edge developer and looking out to build and deploy the production-grade end-to-end AI robotics applications, then check...
Ajeet Raina
7 min read

Hack into the DJI Robomaster S1 Battle Bot in 5 Minutes

When I saw the RoboMaster S1 for the first time, I was completely stoked. I was impressed by its sturdy look....
Ajeet Raina
3 min read

How Much Does it Cost to Hire a Software Developer?

This is a guest post contributed by Collabnix Community member Anastasia Stefanuk, a Professional writer, journalist and editor. Hiring a software...
Ajeet Raina
3 min read

Building a Real-Time Crowd Face Mask Detection System using Docker on NVIDIA Jetson Nano

Did you know? Around 94% of AI Adopters are using or plan to use containers within 1 year time. Containers are...
Ajeet Raina
5 min read

Getting Started with Shipa

Are you frustrated with how much time it takes to create, deploy and manage an application on Kubernetes? Wouldn’t it be...
Ajeet Raina
12 min read

How I visualized Time Series Data directly over IoT Edge device using Docker & Grafana

Application developers look to Redis and RedisTimeSeries to work with real-time internet of things (IoT) sensor data. RedisTimeseries is a Redis...
Ajeet Raina
3 min read

A First Look at Dev Environments Feature under Docker Desktop 3.5.0

Starting Docker Desktop 3.5.0, Docker introduced the Dev Environments feature for the first time. The Dev Environments feature is the foundation...
Ajeet Raina
3 min read

How to assemble DJI Robomaster S1 for the first time?

The RoboMaster S1 is an educational robot that provides users with an in-depth understanding of science, math, physics, programming, and more...
Ajeet Raina
3 min read

Building Your First Jetson Container

The NVIDIA Jetson Nano 2GB Developer Kit is the ideal platform for teaching, learning, and developing AI and robotics applications. It...
Ajeet Raina
7 min read

What You Should Expect From Collabnix Joint Meetup with JFrog & Docker Bangalore Event?

This June 19th, 2021, the Collabnix community is coming together with JFrog & Docker Bangalore Meetup Group to conduct a meetup...
Ajeet Raina
1 min read

Kubectl for Docker Beginners

Kubectl is a command-line interface for running commands against Kubernetes clusters. kubectl looks for a file named config in the $HOME/.kube directory. You can specify...
Ajeet Raina
3 min read

Running RedisInsight Docker container in a rootless mode

On a typical installation, the Docker daemon manages all the containers. The Docker daemon controls every aspect of the container lifecycle....
Ajeet Raina
4 min read

Docker Compose now shipped with Docker CLI by default

Last year, Dockercon attracted 78,000 registrants, 21,000 conversations across 193 countries. This year, it was an even much bigger event attracting...
Ajeet Raina
3 min read

Delivering Container-based Apps to IoT Edge devices | Dockercon 2021

Did you know? Dockercon 2021 was attended by 80,000 participants on the first day. It was an amazing experience hosting “Docker...
Ajeet Raina
1 min read

What are Kubernetes Pods? | KubeLabs Glossary

Kubernetes (commonly referred to as K8s) is an orchestration engine for container technologies such as Docker and rkt that is taking...
Ajeet Raina
9 min read

Running a Web Browser in a Docker container

Are you still looking out for a solution that allows you to open multiple web browsers in Docker containers at the...
Ajeet Raina
1 min read

Running Minecraft in Rootless Mode under Docker 20.10.6

Rootless mode was introduced in Docker Engine v19.03 as an experimental feature for the first time. Rootless mode graduated from experimental...
Ajeet Raina
5 min read

Running RedisInsight using Docker Compose

RedisInsight is an intuitive and efficient GUI for Redis, allowing you to interact with your databases and manage your data—with built-in...
Ajeet Raina
2 min read

Getting Started with BME680 Sensor on NVIDIA Jetson Nano

The BME680 is a digital 4-in-1 sensor with gas, humidity, pressure, and temperature measurement based on proven sensing principles. The state-of-the-art...
Ajeet Raina
1 min read

How to run NodeJS Application inside Docker container on Raspberry Pi

This is the complete guide starting from all the required installation to actual dockerizing and running of a node.js application. But...
Ajeet Raina
3 min read

OSCONF 2021: Save the date

OSCONF 2021 is just around the corner and the free registration is still open for all DevOps enthusiasts who want to...
Ajeet Raina
1 min read

A Closer Look at AI Data Pipeline

According to a recent Gartner report, “By the end of 2024, 75% of organizations will shift from piloting to operationalizing artificial...
Avinash Bendigeri
2 min read

How I built the first ARM-based Docker Image on Pinebook using buildx tool?

The Pinebook Pro is a Linux and *BSD ARM laptop from PINE64. It is built to be a compelling alternative to...
Ajeet Raina
4 min read

Portainer Vs Rancher

According to Gartner “By 2024, low-code application development will be responsible for more than 65% of application development activity.” Low code...
Ajeet Raina
4 min read

Getting Started with NVIDIA Jetson Nano From Scratch

The NVIDIA Jetson Nano 2GB Developer Kit is the ideal platform for teaching, learning, and developing AI and robotics applications. It...
Ajeet Raina
1 min read

Running Redis on Multi-Node Kubernetes Cluster in 5 Minutes

Redis is a very popular open-source project with more than 47,200 GitHub stars, 18,700 forks, and 440+ contributors.  Stack Overflow’s annual...
Ajeet Raina
1 min read

2 Minutes to “Nuke” Your AWS Cloud Resources

Are you seriously looking out for a tool that can save your AWS bills while being a FREE tier user? If...
Ajeet Raina
3 min read

A New DockerHub CLI Tool under Docker Desktop 3.0.0

Docker Desktop is the preferred choice for millions of developers building containerized applications. With the latest Docker Desktop Community 3.0.0 Release, a new...
Ajeet Raina
1 min read

Running RedisAI on NVIDIA Jetson Nano for the first time

The hardest part of AI is not artificial intelligence itself, but dealing with AI data. The accelerated growth of data captured...
Ajeet Raina
7 min read

A First Look at PineBook Pro – A 14” ARM Linux Laptop For Just $200

If you’re a FOSS enthusiast and looking out for a powerful little ARM laptop, PineBook Pro is what you need. The...
Ajeet Raina
3 min read

Introducing 2GB NVIDIA Jetson Nano: An Affordable Yet Powerful $59 AI Computer

Today at GPU Technology Conference(GTC) 2020, NVIDIA announced a new 2GB Nvidia Jetson Nano for the first time. Last year, during...
Ajeet Raina
2 min read

Running Docker Compose on NVIDIA Jetson Nano in 5 Minutes

Starting with v4.2.1, NVIDIA JetPack includes a beta version of NVIDIA Container Runtime with Docker integration for the Jetson platform. This...
Ajeet Raina
2 min read

5 Minutes to Kubernetes Architecture

Kubernetes (a.k.a K8s) is an open-source container-orchestration system which manages the containerised applications and takes care of the automated deployment, storage,...
Ajeet Raina
2 min read

5 Reasons why you should attend ARM Dev Summit 2020

Register Here With 100+ sessions, 200+ speakers & tons of sponsors , Arm DevSummit is going to kick-off next month. It...
Ajeet Raina
4 min read

Interview with Docker Captain Ajeet Singh Raina

This article was originally published in the leading Open Source India magazine Ajeet Singh Raina’s journey as a community leader began...
Avinash Bendigeri
6 min read

Running Minecraft Server on NVIDIA Jetson Nano using Docker

With over 126 million monthly users, 200 million games sold & 40 million MAU, Minecraft still remains one of the biggest...
Ajeet Raina
2 min read

A First Look at Portainer 2.0 CE – Now with Kubernetes Support

Irrespective of the immaturity of the container ecosystem and lack of best practices, the adoption of Kubernetes is massively growing for...
Ajeet Raina
6 min read

Deploy your AWS EKS cluster with Terraform in 5 Minutes

Amazon Elastic Kubernetes Service (a.k.a Amazon EKS) is a fully managed service that helps make it easier to run Kubernetes on...
Ajeet Raina
4 min read

From 1 to 9000: A Close Look at Collabnix Slack Journey

“Individually We Specialise, Together We Transform” Slack has grown to be an excellent tool for communities- both large and small, open...
Ajeet Raina
1 min read

Getting Started with Jenkins X in 5 Minutes

Jenkins works perfectly well as a stand-alone open source tool but with the shift to Cloud native and Kubernetes, it invites...
Ajeet Raina
11 min read

Jenkins X Cloud Native CI/CD with TestProject

Building microservices isn’t merely breaking up a monolithic software application into a collection of smaller services. When shifting to microservices, there...
Ajeet Raina
2 min read

The Rise of Shipa – A Continuous Operation Platform

Cloud native microservices have undergone an exciting architectural evolution. 4 years back, the industry was busy talking about the rise of...
Ajeet Raina
16 min read

Monitoring Multi-Node K3s Cluster running on IoT using Datadog – Part 1

The rapid adoption of cloud-based solutions in the IT industry is acting as the key driver for the growth of the...
Ajeet Raina
4 min read

The Ultimate Docker Tutorial for Automation Testing

If you’re looking out for a $0 cloud-based, SaaS test automation development framework designed for your agile team, TestProject is the right...
Ajeet Raina
57 sec read

How to migrate AWS ElastiCache data to Redis with Zero downtime

Are you looking out for a tool which can help you migrate Elasticache data to Redis Open Source or Redis Enterprise...
Ajeet Raina
3 min read

Building Your First Certified Kubernetes Cluster On-Premises, Part 2: – iSCSI Support

In my first post, I discussed how to build your first certified on-premises Kubernetes cluster using Docker Enterprise 3.0. In this...
Ajeet Raina
9 min read

Top 50 Kubernetes Interview Questions For You

Kubernetes provides a container-centric management environment. It orchestrates computing, networking, and storage infrastructure on behalf of user workloads. This provides much...
Ajeet Raina
31 min read

5 Minutes to RedisInsight running on Single Node Kubernetes Cluster on Docker Desktop for Mac

If you are looking out for a tool which can inspect your Redis data, monitor health, and perform runtime server configuration...
Ajeet Raina
3 min read

Visualize Redis Open Source using Rebrow

If you are serious about monitoring your cluster health with real-time alerts, analyzing your cluster configuration, rebalance as necessary, managing addition...
Ajeet Raina
4 min read

5 Minutes to Multi-Node Redis Cluster running on Google Cloud Kubernetes Engine using Docker Desktop for Windows

If you are looking out for the easiest way to create Redis Cluster on remote Cloud Platform like Google Cloud Platform...
Ajeet Raina
6 min read

Building 3-Node Active-Active Redis Enterprise Cluster for Developers using Docker Desktop for Mac

Redis Enterprise Software (RS) offers Redis Cluster. RS Cluster is just a set of Redis nodes (OS with Redis installed). It...
Ajeet Raina
6 min read

Running Redis Enterprise inside Docker Container in 5 Minutes

Redis Enterprise Software (earlier known as “Redis Labs Enterprise Cluster”) is a robust in-memory but persistent on disk database . Redis...
Ajeet Raina
2 min read

DigitalOcean – A Perfect Docker Developer’s Cloud

DigitalOcean (sweetly called “DO”) is “Docker Developer’s Platform”. If you’re a developer & looking out for speedy way to spin up...
Ajeet Raina
3 min read

Introducing Kubelabs – An Ultimate Kubernetes101 Workshop

Yesterday I conducted Kubernetes workshop for almost 500+ audience at SAP Labs, Bengaluru (India) during Docker Bangalore Meetup #50. The workshop...
Ajeet Raina
1 min read

Object Detection with Yolo Made Simple using Docker on NVIDIA Jetson Nano

If you are looking out for the most effective real-time object detection algorithm which is open source and free to use,...
Ajeet Raina
11 min read

Pico goes Cloudless: Running RTMP & Nginx for Video Streaming using Docker on Jetson Nano locally

I conducted Pico workshop for University students (Vellore Institute of Technology, Vellore & the University of Petroleum & Energy Studies, Dehradun)...
Ajeet Raina
3 min read

Redis running inside Docker container on NVIDIA Jetson Nano

If you are looking out for a small, affordable, low-powered system which comes by default with the power of modern AI...
Ajeet Raina
5 min read

Running Redis on 5-Node Docker Swarm Cluster in 2 Minutes

Redis refers to REmote DIctionary Server. It is an open source, in-memory Data Structure Store, used as a database, a caching...
Ajeet Raina
7 min read

2019 Year in Review: The Rise of Pico, Collabnix Slack & DockerLabs

2019 was a transformational year for Collabnix. With major initiatives like DockerLabs, Pico project & Slack, the site attracted around millions...
Ajeet Raina
2 min read

Kubernetes Monitoring & Best Practices Talk at Sumo Logic Bengaluru User Group

Last Friday, I was invited by Sumo Logic to talk around Kubernetes Monitoring & Best Practices. Around 200+ attendees participated for...
Ajeet Raina
58 sec read

The Rise of Pico: At the Grace Hopper Celebration India

The Grace Hopper Celebration of Women in Computing (GHC) is a series of conferences designed to bring the research and career...
Ajeet Raina
2 min read

Multi-Node K3s Cluster on NVIDIA Jetson Nano in 5 Minutes

If you are looking out for lightweight Kubernetes which is easy to install and perfect for Edge, IoT, CI and ARM,...
Ajeet Raina
6 min read

Docker workshop on Raspberry Pi – University of Petroleum and Energy Studies, Dehradun

On the 3rd of October, I travelled to UPES Dehradun(around 1500 miles) for 1 day session on ” The Pico project”...
Ajeet Raina
1 min read

Building Your First Certified Kubernetes Cluster On-Premises (Part 3) – Support of Kubernetes on Windows

In Part 1 of this blog series, I demonstrated how to deploy a certified Kubernetes cluster on-premises using Docker Enterprise 3.0....
Ajeet Raina
3 min read

Docker 19.03 comes to NVIDIA Jetson Nano

Did you know? In the latest Docker 19.03 Release, a new flag –gpus have been added for docker run which allows...
Ajeet Raina
6 min read

Installing Docker Engine 19.03 on Raspberry Pi 3 in 2 Minutes

Docker is officially supported both on Raspberry Pi 3 and 4. Installing Docker is just a matter of single-liner command. All...
Ajeet Raina
5 min read

Unboxing 3.5” Touch Screen RPi LCD for Raspberry Pi 3 in 2 Minutes

If you have ever conducted Docker on Raspberry Pi workshop during the Meetup event, you surely understand the pain in bringing...
Ajeet Raina
1 min read

A Complete Guide to build Certified Kubernetes Cluster using Docker Enterprise 3.0 on Bare Metal System – Part-I

Did you know? Over 800+ enterprise organizations use Docker Enterprise for everything from modernizing traditional applications to microservices and data science....
Ajeet Raina
14 min read

Kubernetes Cluster on Bare Metal System Made Possible using MetalLB

If you try to setup Kubernetes cluster on bare metal system, you will notice that Load-Balancer always remain in the “pending”...
Ajeet Raina
9 min read

Top 5 Cool Projects around Docker, Raspberry Pi & Blinkt! ~ Monitoring Docker Swarm using LEDs – Part I

Two week back, I travelled to Jaipur, around 1000+ miles from Bangalore for delivering one of Docker Session. I was invited...
Ajeet Raina
3 min read

Docker Enterprise 3.0: Now with New Built-in Docker cluster CLI Plugin

Last Dockercon, dozens of new Docker CLI Plugin were introduced. All of these CLI plugins will be available in upcoming Docker...
Ajeet Raina
6 min read

How to Deploy Apache Kafka on AWS Platform using Docker Swarm Mode?

I am thrilled and excited to start a new open source project called “Pico”. Pico is a beta project which is...
Ajeet Raina
5 min read

How to create a Local Private Docker Registry on Play with Docker in 5 Minutes?

DockerHub is a service provided by Docker for finding and sharing container images with your team. It is the world’s largest...
Ajeet Raina
4 min read

Running Docker Containers on EC2 A1 Instances powered by Arm-Based AWS Graviton Processors

2 week back, I wrote a blog post on how Developers can now build ARM containers on Docker Desktop using docker...
Ajeet Raina
5 min read

How I built ARM based Docker Images for Raspberry Pi using buildx CLI Plugin on Docker Desktop?

2 weeks back in Dockercon 2019 San Francisco, Docker & ARM demonstrated the integration of ARM capabilities into Docker Desktop Community...
Ajeet Raina
10 min read

New Docker CLI API Support for NVIDIA GPUs under Docker Engine 19.03.0 Pre-Release

Let’s talk about Docker in a GPU-Accelerated Data Center… Docker is the leading container platform which provides both hardware and software...
Ajeet Raina
5 min read

Sysctl Support for Docker Swarm Cluster for the first time in Docker 19.03.0 Pre-Release

Docker CE 19.03.0 Beta 1 went public 2 week back. It was the first release which arrived with sysctl support for...
Ajeet Raina
6 min read

Docker 19.03.0 Pre-Release: Fast Context Switching, Rootless Docker, Sysctl support for Swarm Services

Last week Docker Community Edition 19.03.0 Beta 1 was announced and release notes went public here.Under this release, there were numerous...
Ajeet Raina
7 min read

Meet K3s – A Lightweight Kubernetes Distribution for Raspberry Pi Cluster

To implement a microservice architecture and a multi-cloud strategy, Kubernetes today has become a key enabling technology. The bedrock of Kubernetes...
Ajeet Raina
10 min read

Docker Birthday #6: “Show-And-Tell” Event in Bangalore

Docker’s Birthday Celebration is not just about cakes, food and party. It’s actually a global tradition that is near and dear to our heart...
Ajeet Raina
5 min read

A First Look at Docker Desktop Enterprise

If you are looking out for Desktop Enterprise software solution for creating & delivering production-ready containerized applications in a simplified &...
Ajeet Raina
6 min read

5 Minutes to Kubernetes Dashboard running on Docker Desktop for Windows 2.0.0.3

If you want to get started with Kubernetes on your Laptop running Windows 10, Docker Desktop for Windows CE is the...
Ajeet Raina
4 min read

Top 50 Ansible Interview Questions

Ansible is an open-source engine that automates configuration management, application deployment, and other devOps tasks. Ansible is simple, agentless IT automation...
Ajeet Raina
30 min read

Turn Your Raspberry Pi into Low-cost CCTV Surveillance Camera(with Night Vision) in 5 Minutes using Docker

Last week I purchased Raspberry PI Infrared IR Night Vision Surveillance Camera Module 500W Webcam. This webcam features 5MP with OmniVision 5647 sensor...
Ajeet Raina
7 min read

Test Drive 5 Cool Linux Applications on Docker Desktop for Windows Platform

Docker Desktop for Windows 2.0.0.3 Release is available. This release comes with Docker Engine 18.09.2, Compose v1.23.2 & Kubernetes v1.10.11. One...
Ajeet Raina
4 min read

Top 5 Features of Docker Engine v18.09.1 That You Shouldn’t Miss Out

Docker Engine v18.09.1 went GA last month. It was made available for both the Community and Enterprise users. Docker Enterprise is...
Ajeet Raina
10 min read

Building Data Persistent & Datacenter Asset Reporting Capability with Racktables running inside Docker container

Let’s talk about Docker inside the datacenter.. If you are a datacenter administrator and still scouring through a spreadsheet of “unallocated”...
Ajeet Raina
3 min read

Test Drive Compose on Kubernetes on Play with Kubernetes(PWK) Playground in 5 Minutes

On the 2nd day of Dockercon, Docker Inc. open sourced Compose on Kubernetes project. This project provides a simple way to define cloud...
Ajeet Raina
7 min read

A First Look at Compose on Kubernetes for Minikube

Say Bye to Kompose ! Let’s begin with a problem statement – “The Kubernetes API is quite HUGE. More than 50...
Ajeet Raina
6 min read

Running Cron Jobs container on 5-Node Docker Swarm Mode Cluster

A Docker Swarm consists of multiple Docker hosts which run in swarm mode and act as managers (to manage membership and...
Ajeet Raina
2 min read

Top 5 Most Exciting Dockercon EU 2018 Announcements

Last week I attended Dockercon 2018 EU which took place at Centre de Convencions Internacional de Barcelona (CCIB) in Barcelona, Spain....
Ajeet Raina
7 min read

Top 100 Docker Interview Questions & Answers

Are you looking out for Docker related Interview questions categorised into Beginners, Intermediate & Advanced Level users? If yes, then you...
Ajeet Raina
25 min read

Switching Docker 18.09 Community Edition to Enterprise Engine with no downtime

  Under the newer Docker Engine 18.09 release,  a new feature called CE-EE Node Activate has been introduced. It allows a user...
Ajeet Raina
3 min read

6 Things You Should Know before Dockercon 2018 EU

  At Dockercon 2018 this year, you can expect 2,500+ participates, 52 breakout sessions, 11 Community Theatres, 12 workshops, over 100+...
Ajeet Raina
4 min read

How to become a DevOps Engineer?

  Who is DevOps engineer?          DevOps engineers are a group of influential individuals who encapsulates depth of...
Ajeet Raina
1 min read

Kubernetes Hands-on Lab #4 – Deploy Prometheus Stack using Helm on Play with Kubernetes Platform

  Let’s talk about Kubernetes Deployment Challenges… As monolithic systems become too large to deal with, many enterprises are drawn to...
Ajeet Raina
6 min read

Building Helm Chart for Kubernetes Cluster running on Docker Enterprise 2.0 using Docker-app 0.6.0

  Docker-app allows you to share your applications on Docker Hub directly. This tool not only makes Compose file shareable but provide...
Ajeet Raina
5 min read

Installing Helm to deploy Kubernetes Applications on Docker Enterprise 2.0 Made Easy

    Let’s talk about RBAC under Docker EE 2.0… Kubernetes RBAC(Role-based Access Control) security context is a fundamental part of...
Ajeet Raina
8 min read

Kubernetes Hands-on Lab #3 – Deploy Istio Mesh on K8s Cluster

  Istio is completely an open source service mesh that layers transparently onto existing distributed applications. Istio v1.0 got announced last...
Ajeet Raina
7 min read

Kubernetes Hands-on Lab #2 – Running Our First Nginx Cluster

    Nginx (pronounced “engine-x”) is an open source reverse proxy server for HTTP, HTTPS, SMTP, POP3, and IMAP protocols, as...
Ajeet Raina
1 min read

Kubernetes Hands-on Lab #1 – Setting up 5-Node K8s Cluster

  Are you new to Kubernetes? Want to build your career in Kubernetes? Then Welcome ! You are at the right place. This...
Ajeet Raina
2 min read

How I built Elastic Stack for Docker Swarm using Docker Application Packages(docker-app)

  Let’s begin with Problem Statement ! DockerHub is a cloud-based registry service which allows you to link to code repositories,...
Ajeet Raina
4 min read

Getting Started with OpenUSM on Docker for Windows Platform

OpenUSM is a modern approach to Server Management, Insight Logs Analytics and Machine Learning solution integrated with monitoring & logging pipeline...
Ajeet Raina
3 min read

2 Minutes to Docker MacVLAN Networking – A Beginners Guide

Scenario:  Say, you have built Docker applications(legacy in nature like network traffic monitoring, system management etc.) which is expected to be directly...
Ajeet Raina
2 min read

Getting Started with Istio and Kubernetes | Step by Step Guide

If you’re a Developer and have been spending lot of time in developing apps recently, you already understand a whole new...
Ajeet Raina
1 min read

What’s New in Docker Enterprise Edition 18.03 Engine Release?

  A New Docker Enterprise Engine 18.03.0-ee-1 has been released. This is a stand-alone engine release intended for EE Basic customers....
Ajeet Raina
3 min read

5 Minutes to Run Your First Docker Container on Google Cloud Platform using Terraform

I still remember those days(back in 2006-07′) when I started my career as IT Consultant in Telecom R&D centre where I...
Ajeet Raina
8 min read

A First Look at Docker Application Package “docker-app”

  Did you know? There are more than 300,000 Docker Compose files on GitHub. Docker Compose is a tool for defining and...
Ajeet Raina
7 min read

Top 5 Most Exciting Dockercon 2018 Announcements

    Yet another amazzing Dockercon ! I attended Dockercon 2018 last week which happened in the most geographically blessed city...
Ajeet Raina
5 min read

Kubernetes Application Deployment Made Easy using Helm on Docker for Mac 18.05.0 CE

  Docker for Mac 18.05.0 CE Release went GA last month. With this release, you can now select your orchestrator directly...
Ajeet Raina
7 min read

How to Get the Most Out of Dockercon 2018 – (June 12 – 15th, SF)

  In a recent survey of 191 Top Fortune 1000 executives, 69% of them believe that conference presents a wealth of...
Ajeet Raina
5 min read

Under the Hood: Demystifying Docker Desktop For Mac

Docker is a full development platform for creating containerized apps, and Docker for Mac is the most efficient way to start...
Ajeet Raina
4 min read

Top 5 Exclusive Features of Docker For Mac That You Can’t Afford to Ignore

  Docker for Mac 18.04.0 CE Edge Release went GA early last month. This was the first time Kubernetes version 1.9.6...
Ajeet Raina
5 min read

Demystifying Serverless & OpenFaas

Is Function a new container? Why so buzz around Serverless computing like OpenFaas?   One of the biggest tech trend of...
Ajeet Raina
6 min read

Introducing OpenUSM – Simplifying Server Management & Insight Log Analytics using Docker containers

Its 2018 ! Let Containers Manage Your Datacenter.. Containers are changing the dynamics of modern data center. It is a growing...
Ajeet Raina
6 min read

Under the Hood: Demystifying Docker Enterprise Edition 2.0 Architecture

The Only Kubernetes Solution for Multi-Linux, Multi-OS and Multi-Cloud Deployments is right here… Docker Enterprise Edition(EE) 2.0 Final GA release is...
Ajeet Raina
5 min read

Docker’s Birthday Celebration in Bangalore – The Fifth Kind

“As you grow up, make sure you have more networking opportunities than chances, and more collaborative approach than just an acquaintance....
Ajeet Raina
2 min read

5 Minutes to Bootstrap Kubernetes Cluster on GKE using Docker for Mac 18.03.0

Docker 18.03.0 CE Release is now available under Docker for Mac Platform. Docker for Mac 18.03.0 CE is now shipped with...
Ajeet Raina
4 min read

Test-Drive Continuous Integration Pipeline using Docker, Jenkins & GitHub under $0

Are you new to CI/CD? Continuous Integration (CI) is a development practice that requires developers to integrate code into a shared...
Ajeet Raina
3 min read

Context Switching Made Easy under Kubernetes powered Docker for Mac 18.02.0

Say Bye to Kubectx ! I have been a great fan of kubectx and kubectl which has been a fast way...
Ajeet Raina
5 min read

2-minutes to Kubernetes Cluster on Docker for Mac 18.01 using Swarm CLI

Docker for Mac 18.01.0 CE is available for the general public. It holds experimental Kubernetes release running on Linux Kernel 4.9.75,...
Ajeet Raina
1 min read

3 Minutes to Single Node Kubernetes cluster on Docker for Mac Platform

Docker For Mac 17.12 GA Release is now available for the general public. Experimental Kubernetes Support is available only on Edge...
Ajeet Raina
6 min read

When Kubernetes Meet Docker Swarm for the First time under Docker for Mac 17.12 Release

Docker For Mac 17.12 GA is the first release which includes both the orchestrators – Docker Swarm & Kubernetes under the...
Ajeet Raina
4 min read

Top 10 Reasons why LinuxKit is better than the traditional OS distribution

  “LinuxKit is NOT designed with an intention to replace any of traditional OS like Alpine, Ubuntu, Red Hat etc. It...
Ajeet Raina
7 min read

A First Look at Kubernetes Integrated Docker For Mac Platform

Docker support for Kubernetes is now in private beta. As a docker captain, I was able to be a part of...
Ajeet Raina
5 min read

Running LinuxKit locally on Oracle VirtualBox Platform Made Easy

LinuxKit GITHUB repository has already crossed 1800 commits, 3600+ stars &  been forked 420+ times since April 2017 when it was...
Ajeet Raina
3 min read

Building a minimalistic LinuxKit OS on Raspberry Pi 3 using Moby

LinuxKit GITHUB repository recently crossed 3495 stars, forked around 410+ times and added 80+ contributors. Just 7 months old project and...
Ajeet Raina
3 min read

How to Build Kubernetes Cluster using CRI-containerd & Moby

Let’s talk about CRI Vs CRI-Containerd… Container Runtime Interface(a.ka. CRI) is a standard way to integrate Container Runtime with Kubernetes. It...
Ajeet Raina
4 min read

Getting Started with Multi-Node Kubernetes Cluster using LinuxKit

Here’s a BIG news for the entire Container Community – “Kubernetes Support is coming to Docker Platform“. What does this mean? This...
Ajeet Raina
2 min read

Docker, Prometheus & Pushgateway for NVIDIA GPU Metrics & Monitoring

In my last blog post, I talked about how to get started with NVIDIA docker & interaction with NVIDIA GPU system. I...
Ajeet Raina
3 min read

Building a secure Docker Host VM on VMware ESXi using LinuxKit & Moby

Post Dockercon 2017 @ Austin TX,  I raised a feature request titled “LinuxKit command to push vmware.vmdk to remote ESXi datastore”....
Ajeet Raina
3 min read

Running NVIDIA Docker in the GPU-Accelerated Data Center

Docker is the leading container platform which provides both hardware and software encapsulation by allowing multiple containers to run on the same...
Ajeet Raina
5 min read

Hybrid Docker Swarm Mode Cluster with Multi-OS Application Deployment

Here comes the most awaited feature of 2017 – “Building Docker Swarm cluster which includes all Windows cluster, or a hybrid...
Ajeet Raina
3 min read

Walkthrough: Enabling IPv6 Functionality for Docker & Docker Compose

By default, Docker assigns IPv4 addresses to containers. Does Docker support IPv6 protocol too? If yes, how complicated is to get it...
Ajeet Raina
3 min read

Building a Secure VM based on LinuxKit on Microsoft Azure Platform

LinuxKit GITHUB repository recently crossed 3000 stars, forked around 300+ times and added 60+ contributors. Just 5 months old project and...
Ajeet Raina
2 min read

Test Drive Elastic stack on PWD platform running Docker 17.06 CE Swarm Mode in 5 minutes

Let’s talk about Dockerized Elastic Stack… Elastic Stack is an open source solution that reliably and securely take data from any...
Ajeet Raina
3 min read

Building Docker For Mac 17.06 Community Edition using Moby & LinuxKit

Docker For Mac 17.06 CE edition is the first Docker version built entirely on the Moby Project. In case you’re new,...
Ajeet Raina
3 min read

Walkthrough: How to build your own customised LinuxKit kernel?

  “..Its Time to Talk about Bring Your Own Components (BYOC) now..” The Moby Project  is gaining momentum day by day. If...
Ajeet Raina
3 min read

Talking about Moby & LinuxKit Awesomeness at Docker Bangalore Meetup

Today  I spoke at Docker Bangalore Meetup which took place in IBM India Systems Development Lab(ISL) – an R&D Division located at...
Ajeet Raina
2 min read

Docker 17.06 Swarm Mode: Now with built-in MacVLAN & Node-Local Networks support

Docker 17.06.0-ce-RC5 got announced 5 days back and is available for testing. It brings numerous new features & enablements under this new...
Ajeet Raina
4 min read

Running LinuxKit on AWS Platform made easy

With around 2800+ GITHUB stars, 54 contributors,  28 external, 50+ commits per week since the DockerCon launch, LinuxKit has really gained...
Ajeet Raina
2 min read

Why Infrakit & LinuxKit are better together for Building Immutable Infrastructure?

Yet Another Problem Statement(YAPS)… Let us accept the fact – “Managing Docker on different Infrastructure is still difficult and not portable”....
Ajeet Raina
4 min read

A Quick Look at LinuxKit Packaging System

One of the most compelling feature of LinuxKit is “Everything replaceable and customisable”. You can now build up your own customised...
Ajeet Raina
5 min read

Test Drive Multitenant Feature with Oracle 12C Enterprise Edition Docker Store Image

At Dockercon last month, Oracle released  its flagship databases, middleware and developer tools into the Docker Store marketplace via the Docker...
Ajeet Raina
3 min read

Topology Aware Scheduling under Docker v17.05.0 Swarm Mode Cluster

  Docker 17.05.0 Final release went public exactly 2 week back.This community release was the first release as part of new Moby...
Ajeet Raina
4 min read

When Moby Meet Kubernetes for the first time

Moby has turned to be an open playground for collaborators. It has become a popular collaborative project for the container ecosystem to...
Ajeet Raina
3 min read

Demystifying the Relationship Between Moby & Docker

Why https://github.com/docker/docker been redirected to moby/moby?  Why Docker created the Moby project? Is Docker renamed to Moby? What it actually mean...
Ajeet Raina
3 min read

Test-Drive LinuxKit OS on Oracle VirtualBox running on macOS Sierra

In my last blog post, I showed how to get started with LinuxKit for Google Cloud Platform. LinuxKit is secure, lean and...
Ajeet Raina
2 min read

LinuxKit 101: Getting Started with LinuxKit for Google Cloud Platform

  “…LinuxKit? A New Beast?      What problem does it solve for us?..”   In case you missed out Dockercon...
Ajeet Raina
4 min read

Building Web Frontend/UI for Local Docker Registry using SUSE Portus

If you are looking out for Web UI for your private Docker Registry, I would recommend to test-drive a tool called...
Ajeet Raina
2 min read

Test Drive 5 Cool Docker Application Stacks on play-with-docker (PWD) platform

Do you want to learn Docker FOR FREE OF COST? Yes, you read it correct. Thanks to a playground called “play-with-docker”...
Ajeet Raina
4 min read

What’s New in Docker 17.03 Volume Plugin Architecture & Specification?

Docker, Inc announced initial support for volume driver plugins for the first time under Docker 1.8 release. Since then, there has...
Ajeet Raina
1 min read

Docker Service Inspection Filtering & Template Engine under Swarm Mode

Go programming language has really helped in shaping Docker as a powerful software and enabling fast development for distributed systems. It...
Ajeet Raina
2 min read

Running Apache JMeter 3.1 Distributed Load Testing Tool using Docker Compose v3.1 on Swarm Mode Cluster

Apache JMeter is a popular open source software used as a load testing tool for analyzing and measuring the performance of...
Ajeet Raina
4 min read

Dockercon 2017 surely gonna be EPIC | Top Sessions Which You Can’t Miss to Attend This Year..

Are you still thinking whether or not to attend Dockercon 2017? Still finding it difficult to convince yourself or your boss/manager...
Ajeet Raina
2 min read

Introducing new RexRay 0.8 with Docker 17.03 Managed Plugin System for Persistent Storage on Cloud Platforms

DellEMC Rex-Ray 0.8 Final Release was announced last week. Graduated as top-level project within {code} community, RexRay 0.8 release has been...
Ajeet Raina
2 min read

Docker Compose v3.1 file format now supports Docker 1.13.1 Secret Management

Docker Engine 1.13.1 went GA last week and introduced one of the most awaited feature called Secrets Management . With a...
Ajeet Raina
2 min read

Docker For Mac 1.13.0 brings support for macOS Sierra, now runs ARM & AARCH64 based Docker containers

Recently I purchased a brand new slim 13.3 inch Apple Mac Book  Air with an amazing 1.6GHz dual-core Intel Core i5 processor....
Ajeet Raina
3 min read

Test-Drive Docker 1.12 on first 64-bit ARM OpenSUSE running on Raspberry Pi 3

Raspberry Pi 3 Model B is the first 64 bit version and the third generation Pi box which runs on 1.2GHz...
Ajeet Raina
3 min read

What’s New in Docker Engine 1.13 Swarm Mode?

Docker Engine 1.13.0 Final Release has been officially announced . With over 1050 commits, 1025 file changes and 175 days since...
Ajeet Raina
7 min read

Key Takeaways from Docker “Containerd ~ A Core Container Runtime Project” Announcement

With almost every new release, Docker Inc. has open sourced its vital and popular software tools to the community to join...
Ajeet Raina
3 min read

The 20-minutes Docker 1.12 Swarm Mode demonstration on Azure Platform

2016 has been a great year for Docker Inc. With the announcement of Docker 1.12 release in last Dockercon, a new...
Ajeet Raina
10 min read

Top 10 Cool New Features in Docker Datacenter for Dev & IT Operations Team

Docker Datacenter(DDC) provides an integrated platform for developers and IT operations teams to collaborate securely on the application life cycle. It...
Ajeet Raina
3 min read

Walkthrough: Building distributed Docker persistent storage platform for Microservices using DellEMC RexRay & ScaleIO

Today Enterprise IT look for a secure, scalable, out-of-the-box, elastic, portable and integrated solution platform which can span across from their...
Ajeet Raina
5 min read

I’m thrilled ! I’m a {code} Catalyst !

Carrying a slogan “Code Open, Deploy Anywhere”, {code} by DellEMC is an organization of open source engineers focused on next generation...
Ajeet Raina
1 min read

Assessing the current state of Docker Engine & Tools on Raspberry Pi

Are you planning to speak or conduct your next Docker Workshop on Raspberry Pi’s? Still curious to know whether the tools...
Ajeet Raina
4 min read

What’s new upcoming in Docker Compose v1.9.0?

Docker Compose has gained lots of attention in the recent past due to its easy one-liner installation(on Linux, Windows & Mac...
Ajeet Raina
2 min read

Test-Drive Docker “Infrakit” using Docker container

Last week I read a research paper called “Computer Immunology” written by a computer scientist Mark Burgess(Founder of CfEngine). Thanks to...
Ajeet Raina
4 min read

Docker 1.12 Swarm Mode & Persistent Storage using NFS

Containers are stateless by nature and likely to be short-lived. They are quite ephemeral than VMs. What it actually means? Say,...
Ajeet Raina
4 min read

A Comparative Study of Docker Engine on Windows Server Vs Linux Platform

September 26, 2016 was an important day for both Docker Inc. and Microsoft at Ignite conference in Atlanta. Two week ago,...
Ajeet Raina
5 min read

What’s the story of Docker Compose under Docker 1.12.1 “Swarm Mode”?

What’s the story of Docker compose in 1.12.1 Swarm Mode? How does it integrates with the new APIs – service, node...
Ajeet Raina
3 min read

Running Prometheus Docker container for monitoring Microservices on Raspberry Pi

In the previous post, we talked about running Nagios container on Raspberry Pi for the first time.Nagios is a free and...
Ajeet Raina
3 min read

Turn Your Raspberry Pi into Out-of-band Monitoring Device using Docker

Why should I deploy Docker to IoT devices? What are the use cases of running containers inside the IoT device like...
Ajeet Raina
3 min read

Docker 1.12.1 Swarm Mode & Persistent Storage with DellEMC RexRay on AWS Platform

“Does Docker Engine 1.12 has storage discovery similar to Service Discovery and Orchestration Feature? What is the Volume/Persistent Storage story in...
Ajeet Raina
5 min read

Building the first CentOS 7.2 ARM docker image on Raspberry Pi 3

In the previous post, I showed how to get Docker 1.12.1 up and running on Raspberry Pi3 in just 5 minutes....
Ajeet Raina
2 min read

What’s new in Docker 1.12 Scheduling? – Part-I

In our previous posts, we spent considerable amount of time deep-diving into Swarm Mode which is in-built orchestration engine in Docker...
Ajeet Raina
4 min read

Running Docker on Raspberry Pi in 5 minutes

Docker support for Raspberry Pi was introduced for the first time in 2016 with 1.12 release. . With Docker v1.12.1 release,...
Ajeet Raina
1 min read

What’s new in Docker 1.12.0 Load-Balancing feature?

In the previous blog post, we deep-dived into Service Discovery aspects of Docker. A service is now a first class citizen in...
Ajeet Raina
5 min read
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