Terraform

wikipedia:Terraform (software) (July 2014) is an open-source infrastructure as code software.

• Google trends: https://trends.google.com/trends/explore?date=all&q=Terraform

• Terraform Cloud (September 2019)
• Terraform Enterprise
• Terraform Registry

Technical characteristics

• HCL2 based
• Types: strings, number, bool, list, maps, set, tuple, object, any and null (Terraform 0.12)

Supported platforms/providers

• AWS: AWS EKS, GCP, IBM Cloud, DigitalOcean, Azure: Azure Stack, AzureRM, OpenStack, ServiceNow, F5 Networks, Nutanix, Tecent Cloud, Helm, Oracle OCI, Brightbox, RightScale, Linode, SkyTap, UCloud, Hedvig, Zabbix, Rollbar

provider

Installation

• macOS: brew install terraform.
• Ubuntu: snap install terraform or snap install terraform-snap

• Linux:
  • sudo apt-get update && sudo apt-get install -y gnupg software-properties-common curl
  • curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
  • sudo apt-add-repository "deb [arch=amd64] https://apt.releases.hashicorp.com $(lsb_release -cs) main"
  • sudo apt-get -qq update && sudo apt-get install terraform && terraform -v

Ref: https://learn.hashicorp.com/tutorials/terraform/install-cli

Terraform commands

• terraform init
• terraform import
• terraform plan
• terraform apply
• terraform remote config
• terraform destroy
• terraform fmt
  • terraform fmt -check
• terraform show
• terraform validate
• terraform login
• terraform add (1.1.0, xx/2021)
• terraform console
• terraform graph

Common Terraform commands

• terraform --help

Activities

• Create you first AWS instances with Terraform tutorial: https://learn.hashicorp.com/tutorials/terraform/aws-build?in=terraform/aws-get-started
• Read Terraform blog: https://www.hashicorp.com/blog/category/terraform/
• Read https://stackoverflow.com/questions/tagged/terraform?tab=Votes
• Read Terraform: Up & Running, 2nd edition Early Release is now available! https://blog.gruntwork.io/terraform-up-running-2nd-edition-early-release-is-now-available-b104fc29783f
• Terraform: Hello_world.tf
• Terraform, read files

Related

• HCL, HCL2
• terraform_remote_state
• count parameter for iterations
• Remote state backends to manage Terraform state
• Terragrunt
• Releases: https://github.com/hashicorp/terraform/releases
• Terraform libvirt provider
• Heredocs
• artifacts:reports:terraform
• Terraform Cloud Operator
• resource: https://www.terraform.io/docs/language/resources/index.html
• Amazon Aurora

See also

• terraform [untaint | fmt | apply |show | state | init | plan | console | output | validate | destroy | debug | import | providers | get | graph | workspaces | resource | login | -var-file | state mv | state pull | state push | state replace-provider | state rm | force-unlock | env | tfe | --version | remote-exec | delete on termination | deprecated commands | terraform --help]
• Terraform, OpenTofu, Terrakube.org, Installation, Terraform AWS, Terraform GCP, Terraform commands, Terraform Cloud, Terraform Enterprise (TFE), HCL, HIL, meta-arguments, providers, modules, resource, provisioners, data sources, backends: remote backends, examples, configuration files, state files, variables, types, Terraform Registry, conditionals: depends_on, functions, Blocks, dynamic blocks, errors, Terragrunt, Terraformer, Terratest, Terraform certifications, Terraform map type, Terraform Associate, Terraform: list type, TF_VAR_, TF_LOG, Terraform provider versioning, Terraform Style Conventions, Required version, Terraform plugin, Terraform Named Values, tags, Changelog, tfsec, tflint, Operators, Expressions: for, splat, Debugging, Namespaces, Terraform Landing Zones, CDKTF, Atmos
• IaC: Terraform, Chef, cdist, capistrano, Harrow, puppet, Ansible, CFEngine, Cloud Deployment Manager, pulumi, juju, SaltStack, Azure Resource Manager (ARM), Google Deployment Manager, AWS CloudFormation, Pulumi, Heat, Spacelift, Oracle Cloud Resource Manager, KICS, Troposphere, CaC, IaC scanning
• Cloud: cloud providers, cloud timeline, serverless computing, AWS, Azure, Google Cloud, DigitalOcean, IBM Cloud, Alibaba CloudAlibaba, Tencent, Baidu, VPC, Cloud Foundry, Snowflake, Huawei Cloud, Oracle Cloud, CISPE, CIPS, Free trial, Cloudera, Vantage.sh, Render

https://www.terraform.io/docs/commands/index.html