Chef Tutorials: Test Kitchen – Example of .kitchen.yml with aws ec2 on Windows
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…
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…
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…
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…
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 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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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…
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 – 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…
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…