In this article we are going to fix Error Value for undeclared variable A variable named was assigned on the command line, but the root module does not declare a variable of that name. To use this value, add a variable block to the configuration The above mentioned issue very common with terraform and 99% of the case …

TL;DR variables.tf declares, terraform.tfvars assigns. A variable block gives the name, type, default, validation and sensitive flag; a .tfvars file contains only name = value lines. Loaded automatically: terraform.tfvars, terraform.tfvars.json and every *.auto.tfvars / *.auto.tfvars.json in the working directory. …

I got this question many times like how should I start learning DevOps. Well in this article we are gonna talk about How should I learn DevOps by myself if I had to start from scratch? Devops learning path There are certain caveats which I would like to mention - Learning can different for everyone - The first one is …

This page is the index of every Terraform tutorial I have written on jhooq.com since 2021 - more than sixty of them. I have grouped them in the order in which I would learn Terraform myself if I were starting today - install it, create one EC2 instance, then variables, loops, modules, state, and finally the AWS and …

The Application Runner interface provided by Spring Boot is a little advance than the CommandLineRunner Interface. In simple words, we can say that CommandLineRunner Interface does not do more than executing the run() method before the completion of the Spring Boot Application Life Cycle and putting all the program …

Terraform variables are a way to store values that you can reuse throughout your Terraform configuration. You define a value once, reference it in multiple places, and change it in one place when the environment changes - t3.micro in dev, m5.large in prod, same code. I wrote the first version of this post in 2021 for …

TL;DR The one-command unblock: pip install --trusted-host pypi.org --trusted-host files.pythonhosted.org <package>. It tells pip to skip certificate verification for those two hosts. Encryption stays on, identity checking goes off. The cause is almost always a corporate proxy or antivirus that re-signs pypi.org …

Kubespray comes very handily when you want to upgrade or downgrade your kubernetes cluster to the specific version. But it can be troublesome if you do not know - How to upgrade your Kubernetes cluster using Kubespray? Click below - If you want to learn how to setup Kubernetes cluster using Kubespray 12 Steps for …

This guide will help you to create your first AWS EC2 instance using Terraform. When it comes to IaC (Infrastructure as Code) Terraform is still the first choice of most DevOps teams, although there are alternatives such as Ansible, Pulumi, CloudFormation and the open-source fork OpenTofu, because - Terraform is …

In this article we are going to see - How to fix the issue - Error creating service account googleapi Error 403 Identity and Access Management (IAM) API has not been used in project 4686446XXXX before or it is disabled (In case you need help with setting GCP Compute instance here is the guide) Issue I also faced this …