Comprehensive Terraform infrastructure-as-code skill covering providers, resources, modules, state management, and enterprise patterns for multi-cloud infrastructure

Terraform Infrastructure as Code A comprehensive skill for building, managing, and scaling cloud infrastructure using Terraform. Master declarative infrastructure, multi cloud deployments, state management, module composition, and enterprise grade patterns for AWS, Azure, GCP, and other providers. When to Use This Skill Use this skill when: Provisioning cloud infrastructure across AWS, Azure, GCP, or multi cloud environments Building reusable infrastructure modules for teams and organizations Managing infrastructure state across multiple environments (dev, staging, production) Implementing infrastructure as code (IaC) best practices and governance Migrating from manual infrastructure to automated, version controlled deployments Creating repeatable, testable infrastructure configurations Orchestrating complex multi tier application architectures Managing Kubernetes clusters, databases, networks, and compute resources Implementing disaster recovery and multi region deployments Collaborating on infrastructure changes with teams using GitOps workflows Core Concepts Infrastructure as Code Philosophy Terraform enables declarative infrastructure management: Declarative Configuration : Define desired state, Terraform handles execution Immutable Infrastructure : Replace rather than modify infrastructure Version Control : Track infrastructure changes like application code Plan Before Apply : Preview changes before execution Resource Graph : Automatic dependency resolution and parallel execution State Management : Track real world resources and their configuration Key Terraform Components 1. Providers : Plugins for infrastructure platforms (AWS, Azure, GCP, Kubernetes, etc.) 2. Resources : Infrastructure objects (VMs, networks, databases, storage) 3. Data Sources : Query existing infrastructure or external data 4. Variables : Parameterize configurations for reusability 5. Outputs : Export values for consumption by other configurations 6. Modules : Reusable, composable infrastructure components 7. State : JSON file tracking managed infrastructure 8. Workspaces : Manage multiple instances of infrastructure Terraform Workflow Terraform Language (HCL) Basic Syntax HCL (HashiCorp Configuration Language) is declarative and human readable: Variables and Types Terraform supports rich type system: Variable Validation Add custom validation rules: Locals and Expressions Locals compute values once and reuse them: Functions Terraform provides built in functions: Conditional Expressions Meta Arguments Resources support special arguments: Providers Provider Configuration Configure infrastructure platforms: Provider Authentication Secure authentication methods: Resources Resource Declaration Define infrastructure components: Resource Lifecycle Data Sources Query existing infrastructure or external data: Modules Module Structure Organize code into reusable modules: Creating a Module Using Modules Module Versioning State Management Local State Default state stored locally: Remote State S3 Backend Store state in S3 for team collaboration: Remote State Azure Backend Remote State GCS Backend Remote State Terraform Cloud Remote State Data Source Read state from another configuration: Workspaces Manage multiple environments: Workspace Based Configuration Best Practices Code Organization Naming Conventions Security Best Practices DRY (Don't Repeat Yourself) Documentation hcl module "vpc" { source = "./modules/vpc" vpc name = "my vpc" vpc cidr = "10.0.0.0/16" availability zones = ["us east 1a", "us east 1b"] public subnet cidrs = ["10.0.1.0/24", "10.0.2.0/24"] private subnet cidrs = ["10.0.11.0/24", "10.0.12.0/24"] } Testing Infrastructure Advanced Patterns Dynamic Backend Configuration Conditional Resource Creation Zero Downtime Deployments Moved Blocks for Refactoring Import Existing Resources Skill Version : 1.0.0 Last Updated : October 2025 Skill Category : Infrastructure as Code, Cloud Engineering, DevOps Compatible With : AWS, Azure, GCP, Kubernetes, Terraform Cloud

terraform-infrastructure