Kubernetes Security Assesment
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 Landmark, stock market…
Read more »Waterfall -> Agile -> Cloud Native -> Next??
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 Landmark, stock market…
Read more »Top 10 Architecture Characteristics
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 Landmark, stock market…
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Chef Tutorials: What is Chef Solo with example programs
What is Chef Solo? chef-solo is a command that executes Chef Infra Client in a way that does not require the Chef Infra Server to converge cookbooks. chef-solo uses Chef…
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Chef Tutorials: Chef roles Tutorials and Example
What is Role? A role is a way to define certain patterns and processes that exist across nodes in an organization as belonging to a single job function. Each role…
Read more »Chef Tutorials: Uninstalling Chef Software, chef-automate and chef-server
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 Landmark, stock market…
Read more »Python Example Code: Find all the pairs of numbers which sum upto `k`
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 Landmark, stock market…
Read more »Python Example Code: Convert the string “123” into 123, without using the built-api int()
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 Landmark, stock market…
Read more »Python Example Code: Find the pair of adjacent elements that has the largest product
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 Landmark, stock market…
Read more »Python Example Code: Program to display the Fibonacci sequence up to n-th termPython Example Code:
What is the Fibonacci sequence? The Fibonacci sequence is a set of integers (the Fibonacci numbers) that starts with a zero, followed by a one, then by another one, and then…
Read more »Python Example Code: Program for printing k largest elements in an array
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 Landmark, stock market…
Read more »Python Tutorials: List of functions of list Datatypes
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 Landmark, stock market…
Read more »Linux Tutorials: Enable SSH Password authentication in linux servers
Step 1 – Enable PasswordAuthentication yes in sshd_config Step 2 – Restart sshd server Step 3 – Set user password Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and…
Read more »Python Tutorials: Modules with 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 Landmark, stock market…
Read more »Python Tutorials: Namesapce in Python with example
What is Namespace in Python? A namespace is a collection of currently defined symbolic names along with information about the object that each name references. You can think of a…
Read more »Chef Tutorials: knife command line reference
knife bootstrap knife client knife configure knife cookbook knife cookbook site knife download knife delete knife edit knife list knife node knife role knife show knife ssh knife ssl check…
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Chef Tutorials: Configure Workstation with knife
Install Chef Workstation Configure Chef Workstation with Chef Infra Server using Knife Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences. I have worked at Cotocus. I share…
Read more »Chef Tutorials: chef-automate commands line reference
Usage:chef-automate [command] 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 Landmark,…
Read more »Linux Tutorials: Types of Process in Linux
There are five types of Process in Linux 1. Parent process: The process created by the user on the terminal. All processes have a parent process, If it was created directly…
Read more »Chef Tutorials: Install and Configure Chef Automate and Infra Server
Step – 1 – Setup Chef Automate and Chef Infra Server If you want to start from scratch, create a Linux VM or cloud instance, login as an elevated user,…
Read more »Introduction of Chef Automate
Chef Automate is a centralized dashboard for following product of chef for enterprise. Chef Automate provides Chef servers that include premium features of Chef Automate: Chef Infra and Chef InSpec….
Read more »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 Landmark, stock market…
Read more »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 Landmark, stock market…
Read more »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 results of this…
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Chef Tutorials – notifies and subscribes explained with examples of Notifications
Chef notifies and subscribes explained with examples A notification is a property on a resource that listens to other resources in the resource collection and then takes actions based…
Read more »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 expressions and statements,…
Read more »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 Landmark, stock market…
Read more »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 the start of…
Read more »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 attribute files. Because…
Read more »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 at Holiday Landmark,…
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