What is SEO?
SEO means (search engine optimization) is a process whereby we optimize our page and our website at the top of Google page. Google is the most popular…
Update the taints on one or more nodes in Kubernetes
What is meaning of taint? a trace of a bad or undesirable substance or quality. What is tainted? spoiled; damaged in quality, taste, or value: Follwing are…
Setup NFS server and use inside a Kubernetes pods in RHEL/CENTOS7
Setup a NFS server in one of the node of Kubernetes Cluster using rhel 7.X Validate NFS server is working Manually Using NFS server in Kubernetes Pods…
Kubernetes Configmap explained using example
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…
Detailed explaination of joining Kubernetes Nodes aka workers in Kubernetes master?
Step 1 – Install Docker https://www.devopsschool.com/tutorial/docker/install-config/ https://www.devopsschool.com/tutorial/docker/install-config/docker-install-commuityedition-centos-rhel.html Step 2 – How to find discovery-token-ca-cert-has in kubernetes master node? Mehtod 1 – Using openssl Method 2 – Using…
Kubernetes PersistentVolume and PersistentVolumeClaim using NFS volume types
Save the definition to a file, for example nfs-pv.yaml, and create the PV: $ kubectl create -f nfs-pv.yaml persistentvolume “pv0001” created $ get pv $ kubectl create…
AWS Certified Advanced Networking – Specialty Explained
AWS Certified Advanced Networking – Specialty Certification is an industry-supported credential designed for network practitioners looking forward to starting a career in the field of networking and…
Kubernetes Errors and Solutions Database
Kubernetes minikube errors and Solutions kubeadm error – kubelet isn’t running or healthy and connection refused EKS cluster setup error: the server doesn’t have a resource type…
How to expose multiple port in services in kubernetes or Multi-Port Services
You have two options: You could have multiple services, one for each port. As you pointed out, each service will end up with a different IP address…
List of Free Tools for Tabbed Multiple Linux SSH / Putty sessions
PuTTY Connection Manager PuTTY Connection Manager was mentioned in the 12 PuTTY add-ons. One of the major missing features in PuTTY is the ability to display multiple…
AWS Certified DevOps Engineer – Professional Explained
The AWS Certified DevOps Engineer Professional exam validates a candidate’s technical expertise in managing, provisioning and operating distributed applications on AWS. This is a difficult exam and…
How to send pdf file through phpmailer?
1.Create a directory for project on htdoc directory in xampp if you using wamp server then you create your directry on www directory. 2.Open your project directory…
AWS Certified Solutions Architect Professional Explained.
AWS Certified Solutions Architect Professional is a category among one of the technical certifications offered by Amazon Web Services (AWS) for professionals who design application and system…
AWS Certified SysOps Administrator – Associate Explained
AWS is the well-known name in the cloud computing industry. If you are planning to start your cloud career, AWS is the right place to begin the…
How To Create a PDF using PHP
1.Create a directory for project on htdoc directory in xampp if you using wamp server then you create your directry on www directory. 2.Open your project directory…
AWS Certified Developer – Associate Explained
The AWS Certified Developer-Associate Examination is for those who are interested in using/handling cloud based applications and services. Typically, applications developed in AWS are sold as a…
What is function definition in php? with example.
PHP Function:- A function is a block of statements written in a program to perform some specific task. Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge…
Python Tutorials: Web References & Cheatsheet
https://www.learnbyexample.org/python/ Best Books for Learning Python https://www.programiz.com/python-programming/variables-datatypes https://data-flair.training/blogs/python-string/ https://www.journaldev.com/26711/python-logical-operators https://www.geeksforgeeks.org/python-list/ https://www.programiz.com/python-programming/dictionary https://www.learnbyexample.org/python-if-else-elif-statement/ https://www.programiz.com/python-programming/if-elif-else https://www.askpython.com/python/python-functions https://www.learnbyexample.org/python-functions/ https://www.learnbyexample.org/python-classes-and-objects/ https://realpython.com/courses/ https://www.learnbyexample.org/python-file-handling/ https://www.roytuts.com/python-web-application-crud-example-using-flask-and-mysql/ Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing…
Python Tutorials: What is List of Popular Editor for Python?
Visual Studio Code PyCharm Commmunity Version Thonny Atom Sublime Text 3 IDLE Online Compiler from Programiz Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and experiences….
Python Tutorials: How to use pip command to Python3.x instead of Python2.7?
First of all, pip is made for Python2.x and pip3 is made for Python3.x. Thus you need to select wisely which version of module you are installing….
AWS Certified Solutions Architect Associate Explained.
The AWS Certified Solutions Architect – Associate Examination is intended for those individuals who perform a Solutions Architect role and having hands-on experience using compute, networking, storage,…
How to Download and Install Mysql in Macos 10
Step 1 – Download a DMG package from here https://dev.mysql.com/downloads/mysql/ Step 2 – Download a DMG package from here Click on DMG file and again you get…
Python Tutorials: List of python3 Options and arguments command lines
usage: /Library/Frameworks/Python.framework/Versions/3.8/bin/python3 [option] … [-c cmd | -m mod | file | -] [arg] … Options and arguments (and corresponding environment variables): -b : issue warnings about…
Python Tutorials: List of Python Environment Variables
Here are important environment variables, which can be recognized by Python − Sr.No. Variable & Description 1 PYTHONPATHIt has a role similar to PATH. This variable tells…
Terraform Project – Assignment – Exercise – Lab#2: Modules
How to submit Assignment? Please submit assignment @https://www.debug.school/ and POST url share in the comments of this post. Project 1 – Create a terraform Module in which…
Terraform Project – Assignment – Exercise – Lab#3: Mixed
How to submit Assignment? Please submit assignment @https://www.debug.school/ and POST url share in the comments of this post. Exercise 1 – Write a terraform configuration file to…
Bootstrap Tutorial
What is Bootstrap? Bootstrap is a open-source framework for building websites and web applications. That means the bootstrap is fully responsive framework and support any devices which…
Terraform Advance Workflow loop explained!!!
validate – Validates the Terraform files init – Init. Initialize the (local) Terraform environment. Usually executed only once per session. providers – Prints a tree of the…
Decide factor to write Terraform Module or not?
Terraform modules are reusable configuration units. They let you manage pieces of infrastructure as a single package you can call and define multiple times in the main…
Terraform Environment Variables Exaplained!
Terraform has many environment variables which can be used to customize various aspects of its behavior of terraform. However all are optional, i.e None of these environment…