Terraform
- Terraform developed by Hashicorp is most widely infra provisioning tool.
- Terraform is developed in Golang
- Opentofu is a fork of Terraform
How Terraform works
- Terraform is a single executable.
- Terraform uses Providers to interact with specific cloud / hypervisors
- Providers are not part of terraform installation, they are part of infra creation.
| Provider Name |
Type |
Description / Use Case |
| AWS |
Public Cloud |
Amazon Web Services: Compute, storage, networking, etc. |
| Azure |
Public Cloud |
Microsoft Azure: IaaS, PaaS, SaaS services |
| Google Cloud |
Public Cloud |
Google Cloud Platform: Compute, storage, analytics |
| Alibaba Cloud |
Public Cloud |
Alibaba Cloud: Cloud computing and data services |
| DigitalOcean |
Public Cloud |
Developer-focused cloud infrastructure |
| VMware vSphere |
On-premises |
Virtualization platform for managing VMs |
| OpenStack |
On-premises |
Open-source cloud platform for private clouds |
| Kubernetes |
Hybrid/On-premises |
Container orchestration, can be on-prem or cloud |
| Helm |
Hybrid/On-premises |
Kubernetes package manager |
| Cloudflare |
SaaS/Edge |
CDN, DNS, and security services |
| Datadog |
SaaS |
Monitoring and analytics platform |
| GitHub |
SaaS |
Source code management and CI/CD |
| GitLab |
SaaS |
DevOps platform for CI/CD and SCM |
| Okta |
SaaS |
Identity and access management |
| Azure Active Directory |
SaaS |
Microsoft identity and access management |
| HashiCorp Vault |
Security |
Secrets management and data protection |
| HashiCorp Consul |
Networking |
Service discovery and configuration |
| F5 |
On-premises |
Application delivery networking |
| Palo Alto Networks |
On-premises |
Network security (PAN-OS) |
| Cisco |
On-premises |
Networking hardware and software |
- Every Provider will have
- Resources: an infra element which we can manage from terraform
- DataSources
- Arguments: on a general note in terraform arguments are inputs
- Attributes: on a general note in terraform attributes are outputs
-
To terraform we give a folder with
.tf files as input
-
Example Terrafrom template
terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "6.0.0-beta1"
}
}
}
provider "aws" {
# Configuration options
region = "ap-south-1"
}
resource "aws_vpc" "main" {
cidr_block = "10.10.0.0/16"
tags = {
Name = "layered-network"
}
}
Exercise
-
Findout documentation for the following
-
aws ec2 instance
terraform aws ec2
-
azure storage account
- gcp storage bucket
- aws s3 bucket
- aws eks
- azure aks
- Next Step:
- Lets learn how to write terraform
hashicorp configuration language
