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Tales from real IT system administrators world and non-production environment

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Terraform using for loop in attribute value without for_each

In this Terraform example, I explored two approaches to working with map variables. Firstly, I used a for loop to iterate over the key-value pairs in the address_prefixes map, extracting the prefix values and enclosing the loop within square brackets [] to generate list from map.

Alternatively, …

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Terraform for_each for loop list of object without count example

While working with Terraform, I needed to deploy resources without relying on the count meta-argument. My variable was a list of objects, but using count resulted in index numbers being appended to the resource names. To avoid this, I opted to use the for_each argument to iterate over the list of ob…

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Terraform map of object for loop with if condition example

This article I will show the example of Terraform looping map of object variable type and using if condition to filter the map key value. In this demo I provided a map of object inside users variable. Following inside the locals variable, I am using logic for loop over map of objects and if cond…

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HashiCorp HCP Terraform Cloud backend configuration

HCP Terraform Cloud is a managed service presented by HashiCorp that permits users to run Terraform in a cloud-based environment. It provides a protected, scalable, and collaborative platform for infrastructure organizational automation.

HCP Terraform Cloud proposes numerous benefits, including:

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Terraform workspace with example

In the Hashicorp Terraform there is a feature called Terraform workspace that permits you to achieve multiple, isolated infrastructure environments within a single Terraform configuration. A workspace is fundamentally a way to isolate your infrastructure configurations into different environments, s…

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Configure multi node master and worker Kubernetes cluster on K3d docker

After configuring basic K3s (Kubernetes on Docker) setup on my lab with default commands. I found it created single node k8s cluster. I wanted a multi node Kubernetes cluster to be setup with multiple masters and workers.

As my K3d server and cluster is already installed and configured using wit…

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Install k3d Kubernetes on docker on ubuntu linux server

I was testing few features on Kubernetes for the same I was needed a new Kubernetes cluster to be setup in my lab environment for some POC purpose. Here I am installing a new Kubernetes cluster on ubuntu server. I am using k3d, also called Kubernetes on docker.

K3d is a easy and simple tool that…

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Terraform convert single string to list or set

Below are the few examples of Terraform on to converting single string to array of list or set. This code I was wanted in my one of my Azure automation task. In this example I have defined a variable justice_leage with same default value..

For conversion, In the first scenario I can use split()

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Terraform variable type list with for_each for loop examples

In this article I have explored all the examples on how to use list of strings with for_each for loop in Terraform resource and output block.

Microsoft Azure Terraform toset() for_each map list of string objects resource null_resource output variable block example.png

In this first block of example I have defined  variable named marvel, it's type is list and value has string names of superheroes inside [ ] squa…

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Terraform variable multiple validation advanced blocks example

In my previous article on configuring a Terraform module for an Azure Function App with a private endpoint and a storage account, I shown a section within the application_stack block where I needed to implement function apps stacks. Here in this article I focusing on advanced variable validation for…

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Terraform module Azure function app with private endpoint and storage account

terraform microsoft azure function app service plan storage account private endpoint virtual network vnet resource group virtual private link private dns zone configuration deployment.png

In this article I posting terraform configuration script to deploy and configure complete function app with private endpoint and related resources in Microsoft Azure. This is complete configuration script for function app with private endpoint. With this configuration code it creates all below l…

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Terraform Azure function app with private endpoint and storage account

In this article I am creating Azure Function App linked to Private Endpoint and Storage Account using Terraform. This terraform configuration file will deploy all these resources within couple of minute.

In this automation Resource Group, User Assigned Identity, Virtual Network, Subnet, Private D…

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Terraform Azure provider passing multiple alias environment and credentials in child module

While working with Terraform modules I wanted to pass on multiple provider aliases with specific credentials and azure subscription details to child module. Ideas was to create resources with assigned privileged users. Non privileged users should not be able to create services in Azure.

In this…

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Terraform Azure provider alias passing credentials and configuration in module resources

In this article I will be configuring alias in AzureRM provider and passing it to child module. Which will allow me to configure/deploy resources with given settings and credentials. In this demo in my Parent module, I will use specific client_id, client_secret, subscription_id, tenant_id to authen…

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PowerShell create resources on Azure using Rest API with user account

Using client id (Service Principal) and client secret to connect Azure Rest API is fairly easy and simple. As I have shown in my earlier articles. I am using another way of using your organization Username of Password to connect to azure Rest API instead of client id and client secret. You generate …

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Azure Rest API connect with Powershell and create resources

Powershell Microsoft Azure Rest API postman configuration automation application platform interface invoke-webrequest invoke-restmethod.png

I had a task to explore and deploy resources in Microsoft Azure using Rest API. Very good and detailed documentation is provided by Microsoft for Azure Rest API here https://learn.microsoft.com/en-us/rest/api/azure/

In this example I will use PowerShell to automate Azure Rest API and cre…

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Terraform filter map and list object with if condition in for_each loop examples

In terraform there is no actual if else condition block. But still you can use if condition to filter map or list of objects to get the required keys or values. In below example I have scenario where I wanted to create Resource Group in Azure to defined locations only. Incase no data is provided or…

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Terraform variable precedence and priority

This is a informational article on how the variable precedence works in Terraform. This is how the priority is defined for variable when you use it in different ways. In the following diagram, it shows the information of variable priority matrix. Lower the number it has higher the priority and it w…

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Terraform passing different credentials to different subscriptions with provider alias

Terraform passing different credentials to different subscriptions with provider alias.png

While planning and designing Terraform configuration files for Azure deployment, I wanted to deploy resources to different environment in different subscriptions. In the designing code idea was to use different multiple credentials while deploying environments and referencing them with alias.

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Terraform Force-Unlock Command and Unlocking State file on Azure backend with PowerShell

While working on collaborative environment of Terraform deployments, you might encounter an error of acquiring the tf state locking issue. In Terraform word when backend is configured to store state file on remote. It limits multiple users from making changes to environment at the same time to avoid…

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