Chef Tutorials: How to looping and iterative in Chef Cookbook recipe?
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…
Chef Tutorials: Common Resource Functionality in chef Cookbook recipe
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…
Chef Tutorials: How to set Conditions in Chef Cookbooks recipe using Guard?
Guards A guard property can be used to evaluate the state of a node during the execution phase of a Chef Infra Client run. Based on the…
Chef Tutorials: template Resource with example
What is cookbook template (.erb) A cookbook template is an Embedded Ruby (ERB) template that is used to dynamically generate static text files. Templates may contain Ruby…
Chef Tutorials: Create multiple resources in Chef recipe
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…
Chef Tutorials: Working with Ohai
Ohai is a tool for collecting system configuration data, which it then provides to Chef Infra Client to use in cookbooks. Chef Infra Client runs Ohai at…
Chef Tutorials: Working with Chef Attributes
Attributes represent information about your node. In addition to the information that can be automatically generated by ohai, you can set attributes in Chef recipes or in separate…
Chef Tutorials: How to set environment variable in Chef recipe
Method #1 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…
How to generate Letsencrypt certificates with Verifying domain using API
How to install acme.sh? How to Generate Certificates? REFERENCE Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share…
Chef Tutorials: How to write and test a chef recipe?
Step 1 – Install & Verify Chef Workstation Step 2 – Write a following content in hello.rb Step 3 – Write a following content in hello.rb Run…
Top 20 DataOps Tools and Its Ranking in 2023
Data Ops (data operations) is an Agile approach to designing, implementing and maintaining a distributed data architecture that will support a wide range of open source tools and frameworks in production. The…
Cert Manager: Generate TLS Certificates Using Self Signed Issuers
Secure Ingress Resources With Cert Manager 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…
Immigrate to Australia as a Web Developer
Introduction The web development segment in Australia has been growing for quite some time. And, truth be told, it’s about to improve even more. Hence, if you…
List of Popular Open Tracing Tools in 2022
Opentracing Tools with Language Support OpenTracing Tools Architecture Features about Interoperability Opentracer Tools Metrices & Log Support Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and…
How to Develop an iOS App?
You’ve got a great idea for an app. Maybe it’s a game, maybe it’s a productivity tool, maybe it’s a way to connect with friends and family….
Splunk Tutorials: Splunk Commands Reference
Here’s an updated table with example queries that utilize the respective Splunk commands: Splunk Command Description Example Query (Apache Log) search Retrieves events that match specific search…
How to execute sonarqube scanner using jenkins pipeline?
SonarScanner: Command line SonarScanner for Gradle: SonarScanner for Maven: SonarScanner for .NET: The tool name “SonarQube Scanner 2.8” needs to match the “Name” field of a SonarQube…
Jenkins Pipeline: Code coveragenusing JaCoCo
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…
dotcover: dotcover print coverage results using cmd line
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…
dotCover: Powershell Script code coverage report with dotCover
Script generating a code coverage report with dotCover and later converting it with Report Generator so that Azure DevOps task Publish Code Coverage Results can use it….
How to login linux server using ssh?
Step 1 – We need to use ssh client to be installed in a laptop. Step 2 – SSH login method Step 3 – SSH login using…
Terraform Tutorials: Set data type and example
set(…): a collection of unique values that do not have any secondary identifiers or ordering. Set collections are unordered and cannot contain duplicate values, so the ordering…
Optum Lab 1 – Deployment
TIME – 11 PM – 12 PM IST Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share tech…
Optum Lab 2 – Services – LoadBalancer
TIME – 12 PM IST – 1:30 PM IST Step 1 – Watch this video Step 2 – Lets do a LAB Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert…
Certification FAQ
How to request for certificates? Please drop an email to contact@DevOpsSchool.com from your gmail id which you used for registratration. We would verify and send you an…
Linux Tutorials: sed commands line reference & 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 School, travel stories at Holiday…
DevOps Assignment
Certification Program Please create a POST on https://www.debug.school/ for following Questions… 1. What is DevOps in simple terms? 2. What exactly do DevOps do? 3. What are…
What is DevOps? It’s Importance & DevOps as a Career?
DevOps has been taken from the two words that is Development and Operations. DevOps is not a tool, not a software and not at all a programming…
What is DevOps? Salary and Future Growth of DevOps Engineer?
What is DevOps? DevOps is a set of practices that automates and collaborate between (Dev) Development and (Ops) operations teams, which aims to reduce the system development…
What is DevOps? Why Should learn DevOps?
What is DevOps? DevOps is not a tool nor a technique. It’s really more of a cultural Change is feared throughout most organizations of any type, so…