semaphore open source analysis

Modern UI and powerful API for Ansible, Terraform/OpenTofu/Terragrunt, PowerShell and other DevOps tools.

Project overview

⭐ 13030 · Go · Last activity on GitHub: 2026-01-06

GitHub: https://github.com/semaphoreui/semaphore

Why it matters for engineering teams

Semaphore provides a modern user interface and a robust API that simplifies the management of infrastructure as code tools like Ansible, Terraform, and Terragrunt. This open source tool for engineering teams addresses the challenge of coordinating complex deployment pipelines and infrastructure automation across multiple DevOps technologies. It is particularly suited for DevOps engineers, infrastructure engineers, and platform teams who require a production ready solution to streamline CI/CD workflows and infrastructure provisioning. Semaphore has proven maturity and reliability in production environments, making it a dependable choice for teams managing critical infrastructure. However, it may not be the best fit for organisations seeking a lightweight or fully cloud-native SaaS solution, as it primarily targets teams preferring a self hosted option with extensive customisation capabilities.

When to use this project

Semaphore is a strong choice when your team needs a unified interface to manage multiple infrastructure tools and automate deployments within a self hosted environment. Teams should consider alternatives if they prefer a fully managed cloud service or require specialised tooling for a single infrastructure technology without the need for integration.

Team fit and typical use cases

DevOps engineers and platform teams benefit most from Semaphore by using it to coordinate and visualise complex CI/CD pipelines involving Ansible, Terraform, and related tools. It typically appears in products where infrastructure automation and multi-tool orchestration are critical, such as large scale cloud deployments and enterprise infrastructure management. Its role as a production ready solution makes it valuable for teams aiming to maintain control and visibility over their deployment processes.

Topics and ecosystem

ansible awx ci cicd devops docker docker-ui go golang jenkins opentofu pulumi terraform terraform-ui terragrunt

Activity and freshness

Latest commit on GitHub: 2026-01-06. Activity data is based on repeated RepoPi snapshots of the GitHub repository. It gives a quick, factual view of how alive the project is.