DevOps

A retrospective on Nagios — the tool that taught me to understand servers, not just watch them. From one box in 2012 to a 5,000-server clust…

I tried to build a pipeline that captures posts from my Telegram channel and redistributes them across LinkedIn, Twitter, Instagram, Faceboo…

Learn how to use Docker Compose to manage multi-container applications. This guide covers the basics of docker-compose.yml files, common com…

A hands-on walkthrough of Sken.ai, a continuous application security testing tool that performs SAST, DAST, and vulnerability scanning in a …

How to integrate Sken.ai security scanning into a CI/CD pipeline, embedding SAST and DAST checks into automated deployments for a DevSecOps …

Recap of the 4th DevSecOps Pune meetup in March 2019, featuring new sponsors Elastic, Sonatype, and Snyk, with sessions on security tooling …

Step-by-step guide to compiling Envoy proxy from source on Ubuntu 18.04 using Bazel, including all required build dependencies and configura…

Recap of the 3rd DevSecOps Pune meetup in February 2019, with growing attendance and sessions covering Kali Linux, OWASP tools, and defensiv…

Automate SSH key distribution across multiple VMs using ssh-keyscan and ssh-copy-id, eliminating repetitive manual key authorization in Vagr…

After some good success, a huge gap and some mixed learning experiences with organizing DevOps Pune meetups, I decided to start with DevSecO…

For the 2nd DevSecOps meetup, we already had our first swag sponsor. For DevOps Pune, I received swags from Docker and Ansible. Hashicorp wa…

Highlights from the DevOps Weekly newsletter including Kashti, a dashboard for Brigade pipelines, and other open-source DevOps tools worth k…

An introduction to Ansible as an open-source IT automation tool for configuration management, application deployment, and multi-tier orchest…

How to set up Nagios for server infrastructure monitoring, covering host and service checks, alert notifications, and SLA uptime tracking.…

An overview of software configuration management tools including Chef, Ansible, and Puppet, with guidance on when to use each for provisioni…

How to upload files larger than 5GB to Amazon S3 using s3cmd multipart uploads and file splitting to work around S3's single-part size limit…

Getting started with Hadoop 1.0 for big data processing, covering HDFS architecture, MapReduce jobs, HBase for storage, and Hive for queryin…

Recap of the July 2014 Mumbai DevOps special meetup at Directiplex, featuring sessions on Docker, Chef, and configuration management for mod…

I attended conference and workshop on Devops and Cloud Infrastructure - RootConf 2014 at Bangalore from 14th May to 17th May 2014. Topics co…

How Docker and Chef complement each other: using Chef cookbooks to provision and configure Docker containers rather than treating them as co…

Continuing the Chef series with cookbook development: writing recipes, defining resources, setting attributes, and building out run lists fo…

Observations and lessons learned from running and attending tech meetups organized through meetup.com, covering what works and what to avoid…

An introduction to Docker: how Linux containers differ from VMs, how to work with images and the Docker CLI, and why containers simplify app…

Getting started with Chef configuration management: understanding nodes, cookbooks, recipes, and how the Chef client and server work togethe…

Part 2 of knife-vcloud: listing, inspecting, and managing vApps in VMware vCloud Director using the Chef knife plugin with version 1.2.0 fix…

Automating VMware vCloud Director with Chef's knife-vcloud plugin on CentOS 6.5 and Chef 11, covering installation, configuration, and basic…

Comparing public, private, and hybrid cloud deployment models, with practical guidance on which approach suits different enterprise workload…

Using Vagrant with VirtualBox and VMware to create reproducible, version-controlled development VMs that match production environments and w…

Linux performance monitoring for sysadmins: using top, htop, vmstat, iostat, and sar to track CPU, memory, disk I/O, and system load in real…

An overview of New Relic APM for monitoring application performance, setting up alerts, tracking response times, and meeting SLA targets in …