OpenShift Lab 9: Work with Databases in the OpenShift Web Console
Lab Goal In this lab, you will deploy a PostgreSQL database on OpenShift Local using the OpenShift web console. You will create the database using modern OpenShift…
OpenShift Lab 8: Work with Databases in OpenShift Using the oc CLI Tool
Lab Objective In this lab, you will deploy a PostgreSQL database in OpenShift using the oc CLI tool. You will learn how to: Important Concept A database…
Openshift: Lab 7 – Scale applications using the oc CLI tool
Lab 7 summary This lab teaches how to use the oc CLI to scale an OpenShift application up and down by changing the number of pod replicas…
Openshift: Lab 6 – Scale applications using the OpenShift web console
Lab 6 summary This lab teaches how to scale an OpenShift application up and down from the web console, specifically from the Topology view. The learner first…
Openshift: Lab 5 – Install an application from a source code using the oc CLI tool
Lab 5 summary This lab teaches how to use the oc CLI from your local machine to deploy an application into OpenShift Developer Sandbox from source code…
Openshift: Lab 4 – Install an application from a Linux container image using the oc CLI tool
What Lab 4 teaches Lab 4 teaches how to use the oc CLI tool from a local machine to deploy an application on a remote OpenShift cluster…
Openshift: Lab 3 – Install an application from a Linux container image repository using the OpenShift web console
What the lab teaches The lab teaches how to use the OpenShift web console to deploy an application directly from a public container image repository. It uses…
Openshift: Top OC Commands with Examples
0. First: audit your local oc Run this first on your machine: For any command: Use this style for labs: Most useful global patterns: Pattern Why use…
Openshift: Lab 2 – Install an application from source code in a GitHub repository using the OpenShift web console
What this lab teaches The lab teaches how to use the OpenShift web console to deploy an application directly from source code stored in GitHub. The example…
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 Secret Explained: API Resource, YAML Example, and Use Cases
What is Kubernetes SecretsA Secret is an object that contains a small amount of sensitive data such as a password, a token, or a key. Objects 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 a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge…
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 Job & CronJob Explained: API Resource, YAML Example, and Use Cases
Cronjob Example 1 job Example Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps…
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 a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech blog at DevOps School, travel stories at Holiday…