Terraform Tutorials: Variables – Data Type – Map
In this example, the instance_tags variable is defined with a type of map(string), and it is given a default value of { Name = “my-instance” }. The AWS provider is…
Read more »
Example of terraform terraform.tfvars
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 »
Terraform variable using TF_VAR environment variables example
How to set Terraform Variables in Windows? Terraform will read environment variables in the form of TF_VAR_name to find the value for a variable. For example, the TF_VAR_region variable can…
Read more »
Terraform variable using anyotherfile.tfvars 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 »
Terraform variable using command line 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 »
Terraform Tutorials: Variables – Data Type – String
In this example, the instance_name variable is defined with a type of string, and it is given a default value of “my-instance”. The AWS provider is then configured to use…
Read more »
Terraform Example Code for Hello world Program
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 »
Terraform example program for aws_security_group, aws_instance and provisioner
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 »
Terraform Error: Key is not in valid OpenSSH public key format
Code Error Solutions: 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…
Read more »
Example Terraform Code for AWS provider, resources aws_key_pair
This command would generate a public and private key $ ssh-keygen -f terraform_ec2_key This resources would import aws key pair Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud Expert passionate about sharing knowledge and…
Read more »
Terraform state explained!!!
By – christophchamp Terraform keeps the remote state of the infrastructure It stores it in a file called terraform.tfstate There is also a backup of the previous state in terraform.tfstate.backup When you execute terraform apply, a new terraform.tfstate and…
Read more »
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 search engine in…
Read more »
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 workload which run…
Read more »
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 Rajesh KumarI’m a…
Read more »
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 and experiences. I…
Read more »
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 Ansible Python Filter…
Read more »
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 -f nfs-claim.yaml Pods…
Read more »
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 hybrid IT architectures….
Read more »
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 “services minikube error…
Read more »
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 You could have…
Read more »
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 sessions in Tabs…
Read more »
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 requires you to…
Read more »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 with command prompt…
Read more »
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 using AWS platform…
Read more »
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 learning process. The…
Read more »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 with command prompt…
Read more »
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 product in AWS…
Read more »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 and experiences. I…
Read more »
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 knowledge and experiences….
Read more »
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. I have worked…
Read more »