Terraform

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

• 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

Installation

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

Review version:

terraform -v
Terraform v0.13.5

Running terraform

• terraform init
• terraform plan
• terraform apply
• terraform remote config
• terraform destroy

Common Terraform commands

    apply              Builds or changes infrastructure
    console            Interactive console for Terraform interpolations
    destroy            Destroy Terraform-managed infrastructure
    fmt                Rewrites config files to canonical format
    get                Download and install modules for the configuration
    graph              Create a visual graph of Terraform resources
    import             Import existing infrastructure into Terraform
    init               Initialize a new or existing Terraform configuration
    output             Read an output from a state file
    plan               Generate and show an execution plan
    providers          Prints a tree of the providers used in the configuration
    push               Upload this Terraform module to Terraform Enterprise to run
    refresh            Update local state file against real resources
    show               Inspect Terraform state or plan
    taint              Manually mark a resource for recreation
    untaint            Manually unmark a resource as tainted
    validate           Validates the Terraform files
    version            Prints the Terraform version
    workspace          Workspace management

All other commands:
    0.12upgrade        Rewrites pre-0.12 module source code for v0.12
    0.13upgrade        Rewrites pre-0.13 module source code for v0.13
    debug              Debug output management (experimental)
    force-unlock       Manually unlock the terraform state
    push               Obsolete command for Terraform Enterprise legacy (v1)
    state              Advanced state management

Activities

1. Read Terraform blog: https://www.hashicorp.com/blog/category/terraform/
2. 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
3. Terraform: Hello_world.tf
4. 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

See also

• 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