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…

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Chef Lab and Excercise – Recipe – Part 2

Submit a Assignment of www.Debug.school 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…

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Chef Lab and Excercise – Recipe – Part 1

Submit the assignment on www.Debug.School! 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…

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Chef Tutorials: Chef in-built and common resource types with example

Bash vs execute For a single script, use an execute. The bash resource is for including the script contents inline in the recipe code. Use the bash…

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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…

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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…

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Chef Tutorials: List Of Chef Tools and their explainations

chef-apply chef-apply is an executable program that runs a single recipe from the command line. Is part of the Chef development kit. A great way to explore…

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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…

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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…

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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….

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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…

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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…

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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…

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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…

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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….

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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…

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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…

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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…

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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…

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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…

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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…

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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…

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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…

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What is DevOps? Explained Benefits and its Challenges

What is DevOps?:- The word “DevOps” was coined in 2009 by Patrick Debois, who became one of its gurus. The term was formed by combining “development” and…

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What is DevOps? A detailed explanations!

What is DevOps defined by AWS DevOps is the combination of cultural philosophies, practices, and tools that increases an organization’s ability to deliver applications and services at…

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Appdynamics Useful Web Resources

Example scripts to install and configure the Enterprise Console, Platform, Controller and Events Service https://github.com/Appdynamics/Install_Configure The AppDynamics Ansible Collection installs and configures AppDynamics agents. All supported agents…

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Datadog Tutorial: Install DD agent & Auto Config Kafka in Linux

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…

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Datadog Tutorial: win32_event_log log setup using powershell

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…

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Datadog Tutorial: .NET APM Library Setup via PowerShell

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…

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AppDynamics Tutorial: Install App Agent dotNetAgentSetup on Windows/Linux

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…

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