Learning path

Terraform Infrastructure as Code Pro

Master Terraform from IaC fundamentals and HCL through providers, state, modules, backends, testing, security, CI/CD, imports, refactoring, debugging and a complete cheatsheet.

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Lessons

24 published lessons · 1 free preview

01Terraform IaC Mental Model & Core WorkflowUnderstand declarative infrastructure, desired state, providers, dependency graphs, state, and the write → init → plan → apply feedback loop.Beginner · 15 min readFree previewFree preview
02Install Terraform, Project Structure & First ConfigurationSet up Terraform correctly, understand root modules and common files, and create a small first configuration safely.

Beginner · 16 min read

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03HCL Fundamentals: Blocks, Arguments, Types & ExpressionsLearn the Terraform language model: blocks, arguments, references, primitive and collection types, conditionals, and expressions.Beginner · 17 min readLocked

04Providers, Authentication, Versions & Dependency Lock FileUnderstand provider plugins, required_providers, authentication, aliases, version constraints, init upgrades, and `.terraform.lock.hcl`.Intermediate · 18 min readLocked

05Resources, Data Sources, References & Dependency GraphModel managed infrastructure and existing/read-only information, then understand implicit and explicit dependencies.Beginner · 17 min readLocked

06Variables, tfvars, Validation & Input DesignDesign safe module inputs using types, defaults, tfvars, validation, nullable/sensitive behavior, and variable precedence.Intermediate · 19 min readLocked

07Locals, Outputs, Functions & terraform consoleUse locals for reusable expressions, outputs as module interfaces, built-in functions for transformations, and console for exploration.Intermediate · 17 min readLocked

08Terraform CLI Workflow: init, fmt, validate, plan, apply & destroyMaster the daily CLI workflow and understand exactly what each core command prepares, checks, previews, changes, or destroys.Beginner · 20 min readLocked

09Terraform State: Mapping, Resource Addresses & Safe InspectionUnderstand why state exists, how resource addresses map configuration to remote objects, and how to inspect state without corrupting it.Intermediate · 20 min readLocked

10Remote State, Backends, Locking & Team SafetyMove beyond local state: backend responsibilities, locking, encryption/access controls, state migration, and team collaboration patterns.Intermediate · 20 min readLocked

11Meta-Arguments: count, for_each, depends_on, lifecycle & Provider SelectionControl resource multiplicity, dependencies, replacement behavior, destruction protection, ignored changes, and alternate provider configurations.Intermediate · 20 min readLocked

12Terraform Modules: Reusable Infrastructure ArchitectureBuild reusable modules with explicit inputs/outputs, composition, sources, versions, provider passing, and sensible abstraction boundaries.Intermediate · 21 min readLocked

13Workspaces & Environment StrategyUnderstand CLI workspaces, their relationship to state, and when separate root configurations or repositories are safer for environment boundaries.Intermediate · 16 min readLocked

14Import Existing Infrastructure into TerraformBring brownfield resources under Terraform management using import blocks or CLI import, then reconcile configuration carefully.Intermediate · 19 min readLocked

15Safe Refactoring: moved Blocks, State mv & Address ChangesRename and reorganize resources/modules without accidental destroy-and-recreate operations by preserving resource identity.Advanced · 18 min readLocked

16Drift, Refresh & Plan StrategiesDetect out-of-band changes, understand refresh behavior, refresh-only workflows, saved plans, targets, replacement requests, and risk.Advanced · 19 min readLocked

17Validation, Preconditions, Checks & terraform testBuild confidence with fmt/validate, variable validation, preconditions/postconditions, check blocks, and Terraform test files.Advanced · 20 min readLocked

18Sensitive Data, Ephemeral Values & Terraform SecurityProtect credentials and secrets across configuration, plan/state, CI logs, backends, sensitive/ephemeral values, and provider authentication.Advanced · 20 min readLocked

19Advanced Expressions, for_each Data Shaping & Dynamic BlocksTransform collections cleanly with for expressions, maps/sets, flatten/merge, conditionals, dynamic blocks, and stable for_each keys.Advanced · 20 min readLocked

20Team Repository Structure, Naming & Versioning PracticesOrganize Terraform for teams with root-module boundaries, state isolation, naming, tags, version constraints, ownership, documentation, and code review.Intermediate · 18 min readLocked

21Terraform CI/CD: Plan, Review, Approval & ApplyDesign a safe delivery pipeline with formatting, validation, testing, remote state, saved plans, protected credentials, approvals, and serialized applies.Advanced · 22 min readLocked

22End-to-End Terraform Lab: AWS Network + ComputeFollow a complete Terraform delivery flow from provider setup through VPC/subnet/security/compute, outputs, plan review, verification, and cleanup.Intermediate · 24 min readLocked

23Terraform Debugging & Troubleshooting PlaybookDiagnose init, provider, HCL, plan, state, lock, drift, permission, dependency, import and module failures using a repeatable evidence workflow.Advanced · 24 min readLocked

24Terraform Cheatsheet: Workflow, State, Modules & TroubleshootingA high-utility Terraform reference covering core workflow, configuration, state, backends, modules, imports, refactoring, testing, security and troubleshooting.Intermediate · 24 min readLocked

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Terraform Infrastructure as Code Pro

Lessons