Openshift Labs & Assignment
Openshift: Lab 1 – Use the terminal window within the Red Hat OpenShift web console Openshift: Lab 2 – Install an application from source code in a…
Openshift Local: crc command lines guide with example
Most important daily commands Flow Commands First setup crc version → crc setup → crc start -p ~/Downloads/pull-secret.txt Start work crc start → crc status → crc…
Datadog Assignment & Project Master Plan
Target Audience This lab is suitable for: DevOps engineers, SREs, cloud engineers, platform engineers, application engineers, monitoring engineers, and students learning Datadog from practical implementation. Final Outcome…
Datadog Cloud SIEM: Complete End-to-End Master Guide
Current as of June 2026. Datadog Cloud SIEM is Datadog’s security information and event management product for collecting security telemetry, analyzing logs and events with detection rules,…
Datadog Agent Commands with Examples
Below is a Datadog Agent command cheat sheet in table format. I’m focusing only on Agent CLI / Agent service commands, with practical examples and explanations. The…
Datadog Troubleshooting Master Guide
It covers: Datadog Agent, Kubernetes Agent, Cluster Agent, integrations, logs, APM/traces, custom metrics, DogStatsD, OpenTelemetry, API keys, Terraform, monitors, SLOs, RUM, Synthetics, cloud integrations, cost, permissions, and…
Datadog FAQ / Interview Questions and Answers — 50 Questions
Below is a Datadog theoretical / approach / capability FAQ set — not MCQ style. These are the kinds of questions that usually come in interviews, internal…
Datadog Interview Questions and Answer
1. What is Datadog primarily used for? A. Source code version controlB. Infrastructure, application, log, and security observabilityC. Database schema migration onlyD. Static website hosting Correct Answer:…
Datadog Agent CLI — datadog-agent and Windows agent.exe with examples
This guide covers the Datadog Agent command-line interface for: The Datadog Agent CLI is subcommand-based. Datadog’s current Agent command documentation says the general syntax is: and recommends…
Datadog Tutorial: Create Monitors / Alerts using Datadog API — Step by Step
This guide uses the current Datadog Monitor API v1, which is still the main API for creating metric, log, APM, and many other monitor types. Datadog’s API…
Datadog Log: Lab and Assignment
Lab Manual: Datadog Logs Search, Filter, Sorting, Display, and Analysis Hands-on Datadog Logs Explorer Lab using Ubuntu Linux Logs and Apache Logs Lab Objective By the end…
What is Datadog: Observability, Monitoring, SIEM, AIOps, Security, and DevOps Platform
Datadog is a SaaS-based observability, monitoring, security, and service-management platform used by DevOps, SRE, platform, application, security, and business teams to understand the health, performance, reliability, cost,…
Moving from compliance pentesting to risk-based pentesting
In IBM’s 2024 Cost of a Data Breach Report, the global average cost of a breach reached USD 4.88 million, and the United States recorded the highest…
5 Best AI Lecture Note Takers for Students and Online Learners in 2026
Anyone who has tried to follow a fast-paced DevOps lecture, a dense cloud architecture webinar, or a live coding walkthrough knows the problem: you can either pay…
Why AI-Powered Design Is Changing the Way Businesses Create Marketing Materials
Creating eye-catching marketing materials has always been a challenge. Whether you’re a small business owner, marketer, educator, or entrepreneur, designing professional visuals often requires a combination of…
Kubernetes ConfigMap Explained: API Resource, YAML Example, and Use Cases
Content of reverseproxy.conf Commands to execute to create configmap Example pod using configmap Validating configmap inside a pod Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud,…
Kubernetes Service Explained: API Resource, YAML Example, and Use Cases
In Kubernetes, a Service is an abstraction that defines a logical set of pods and a policy by which to access them. It provides a stable network…
Kubernetes Deployment Explained: API Resource, YAML Example, and Use Cases
Fearture of Kubernetes Deployment Note:ReplicaSets = Replication+Controller in the Deployment Kubernetes Deployement Strategy Type of deployment .spec.strategy specifies the strategy used to replace old Pods by new…
Kubernetes ReplicaSet Explained: API Resource, YAML Example, and Use Cases
Rajesh KumarI’m Rajesh Kumar, a DevOps, SRE, DevSecOps, Cloud, and Platform Engineering expert passionate about sharing practical knowledge, real-world experiences, and industry best practices. I have worked…
Kubernetes ReplicationController Explained: API Resource, YAML Example, and Use Cases
A ReplicationController is a Kubernetes controller that ensures that a specified number of pod replicas are running at any one time. In other words, a ReplicationController makes…
Kubernetes Pod Explained: API Resource, YAML Example, and Use Cases
Birth Events of PODS Example of POD? Commads for working with POD? pod.yaml deployment.yaml How to use & troubleshoot Kubernetes pods? Troubleshooting and Debugging Commands: explain Documentation…
Kubernetes Namespace Explained: API Resource, YAML Example, and Use Cases
Kubernetes namespaces are a way to organize, isolate, and manage Kubernetes resources. They provide a virtual sub-cluster within a Kubernetes cluster, and they can be used to…
Kubernetes Setup Options: The Complete Guide from Local Labs to Enterprise Production
Kubernetes Setup Options: The Complete Guide from Local Labs to Enterprise Production Kubernetes can be installed in many different ways. The right approach depends on your goal:…
Building Scalable OTT Platforms: Architecture, Challenges, and Best Practices
OTT Streaming has revolutionized consumer consumption of media in the current generation. Videos ranging from movies, live sports, documentaries, and entertainment have found themselves on the OTT…
Turning Unstructured Data Into Actionable Business Intelligence
Organizations generate enormous amounts of information every day. Contracts, reports, proposals, specifications, emails, and project documentation all contain valuable insights. Yet much of this information remains difficult…
GCP vs. On-Prem for DevOps Infrastructure: A Cost and Operational Maturity Comparison
Most engineering teams don’t decide to keep DevOps tooling on-premises. They inherit the decision. A CI runner gets stood up on a spare server, an artifact store…
Forward Deployed Engineer Masterclass
I studied current FDE-style roles from Palantir, OpenAI, Anthropic, Google Cloud, Databricks, Together AI, Okta, Vercel, PayPay, Glean, Scale AI and similar companies. The strongest pattern is…
Product Discovery for AI Features: What B2B SaaS Teams Should Validate Before Sprint 1
42% of companies abandoned AI initiatives in 2024. The year before, that number was 17%. Technology didn’t get worse and the models didn’t regress. What happened is…
AI note-taking tools for engineering teams in 2026
Engineering teams often lose useful context in hallway conversations, incident calls, architecture reviews, and quick standups that never make it into Jira or Confluence. The quick standup…
How Certifications and Degrees Can Work Together in Tech Careers
Tech careers rarely follow one clean path now. Some people start with a degree. Others begin with a certification, a help desk job, or a small project…