Terraform Apps and Infra 1 - Introduction

In

Introduction to TF

  • Build, change, version infrastructure safely and efficienty, locally or on the cloud.
graph LR
  A[terraform_config.tf]
  B[terraform.tfvars]
  C[Terraform]
  D[Terraform.tfstate]
  E[Cloud provider]
  F[Cloud environment]
  G[Team working with terraform]
  H[Terraform Cloud]

  A --> C
  B --> C
  C --> D
  C --> E
  E --> C
  E --> F
  F --> E
  D --> H
  H --> D
  G --> H
  • Components
    • Infrastructure as code
      • Terraform Configuration Language: describes it using a high-level configuration syntax
      • versioned: reused and shared
    • Execution plans
      • Planning steps: avoid any surprises when Terraform manipulates infrastructure.
    • Resource graph
      • build infra as efficiently as possible
      • operators get insight into dependencies and resources
    • Change automation
      • applied complex changes with minimal interaction.
      • combination of the execution plan and resource graph, you will know exactly what Terraform will change and in what order
      • avoid many possible human errors

Setting Up Your Environment

Instalation

  • Pre-compiled binary: download and add to path

    • configure automplete by adding the following line to ~/.bashrc, and restart shell after it
      1
      terraform -install-autocomplete

  • OS package manager

    • Windows: Chocolatey
    • Mac: homebrew
    • Linux: depends on distro and package manager
      1
      2
      3
      4
      sudo yum install -y yum-utils
      yum-config-manager --add-repo https:://rpm.releases.hashicorp.com/RHEL/hashicorp.repo
      sudo yum -y install terraform
      terraform --help

Nice to have

  • Hasicorp Terraform syntax highlight and autompletion plugin/extension for your IDE