Terraform
Terraform is a tool by HashiCorp that leverages the "Infrastructure as Code" approach to manage cloud infrastructure. It enables declarative description and management of resources (such as virtual machines, networks, disks, etc.) using textual configurations written in HCL (HashiCorp Configuration Language). Terraform automatically calculates dependencies, formulates change plans, and ensures consistent and repeatable deployments.
Next, we will cover installing Terraform on various operating systems, configuring the OpenStack provider for managing Peerobyte cloud infrastructure using Terraform, and exploring variables and essential commands. In the cloud infrastructure documentation sections (e.g., "Disk," "Create Disk"), alongside graphical interface (GUI) and command-line interface (CLI) instructions, ready-made HCL blocks and Terraform command examples for managing corresponding resources will be provided.
Briefly about HCL
HCL uses key-value pairs within each block, similarly to JSON format. This allows resources and configurations to be described using strings, numbers, booleans, lists, and maps. HCL supports variables and references to other resources, and configuration files typically have extensions .hcl or .tf. The language features concise syntax, with structures defined by blocks and attributes. Modularity allows repetitive blocks to be extracted into modules with input and output variables.