Terraform Pull Request Automation using Spacelift

Spacelift is a Continuous Infrastructure Delivery (CID) platform that simplifies the process of deploying and managing IaC. It offers a way to automate your infrastructure provisioning while integrating seamlessly with your CI/CD (Continuous Integration/Continuous Deployment) pipeline. Spacelift supports various IaC tools like Terraform, Pulumi, and AWS CloudFormation.
February 14, 2023
min read
Yehonatan Rumyantsev
Cloud Specialist
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TL;DR

Introduction

In the modern era of cloud computing, developers and organizations are increasingly turning to Infrastructure as Code (IaC) to streamline the process of provisioning and managing cloud resources. Two of the most popular tools in the IaC landscape are Spacelift and Terraform. In this post, we will explore what Spacelift and Terraform are and how they work together to provide an efficient and seamless cloud infrastructure management experience.

Spacelift: Continuous Infrastructure Delivery

Spacelift is a Continuous Infrastructure Delivery (CID) platform that simplifies the process of deploying and managing IaC. It offers a way to automate your infrastructure provisioning while integrating seamlessly with your CI/CD (Continuous Integration/Continuous Deployment) pipeline. Spacelift supports various IaC tools like Terraform, Pulumi, and AWS CloudFormation.

Some key features of Spacelift include:

  1. Version Control Integration: Spacelift integrates with popular version control systems like GitHub, GitLab, and Bitbucket, enabling you to manage your infrastructure code in a familiar environment.
  2. Automatic Deployments: Spacelift can detect changes in your IaC repository and trigger automatic deployments based on customizable rules.
  3. Collaboration and Access Control: With Spacelift, you can easily manage access control and collaborate with your team on infrastructure changes.

Terraform: A Declarative IaC Tool

Terraform, created by HashiCorp, is a popular open-source IaC tool that allows you to define, provision, and manage cloud infrastructure using a simple declarative language called HashiCorp Configuration Language (HCL). Terraform enables you to treat your infrastructure as code, making it easy to version, test, and collaborate on changes.

Key benefits of Terraform include:

  1. Provider-Agnostic: Terraform supports a wide variety of cloud providers like AWS, Google Cloud, Azure, and more. This allows you to use a single language to manage multiple cloud environments.
  2. Modularity and Reusability: Terraform promotes modular and reusable code through the use of modules, which helps create consistent and maintainable infrastructure configurations.
  3. State Management: Terraform maintains a state file that keeps track of your infrastructure's current state, making it easy to manage changes and enforce desired states.

How Spacelift and Terraform Work Together

Spacelift and Terraform combine to form a powerful duo that simplifies and automates the process of provisioning and managing cloud infrastructure. Spacelift acts as the orchestration layer, automating Terraform operations and integrating them with your version control and CI/CD systems.

By using Spacelift with Terraform, you can:

  1. Automate infrastructure deployments triggered by code changes.
  2. Visualize the resources in the proposed change before applying them.
  3. Collaborate with team members and enforce access controls.
  4. Maintain a comprehensive audit trail of all infrastructure changes.