semaphore
The premium Open Source alternative to Ansible Tower
🎯 Best for:Teams needing a lightweight UI for Ansible and Terraform automation.
What is semaphore?
A web-based UI and API for managing Ansible, Terraform, and OpenTofu automation tasks. It provides role-based access control and task scheduling for infrastructure-as-code workflows.
Tech Stack
GoInfrastructure & Cloud
Why semaphore?
- • Lightweight Go-based architecture
- • Supports multiple IaC tools
- • Simple LDAP/AD integration
Limitations
- • Smaller community than AWX
- • Limited enterprise plugins
- • Manual configuration required
3/5/2026
Last Update
1,221
Forks
925
Issues
MIT
License
Financial Leak Detected
Stop the "SaaS Tax"
Your team could be burning cash. Switching to semaphore instantly boosts your runway.
Competitor Cost
-$1,440
/ year (est. based on Ansible Tower)
Self-Hosted
$0
/ year
Team Size10 Users
150+
SAVE 100%