Base
Hardened build
minimal ports, security patches applied at build time
Semaphore UI on Ubuntu 24.04 LTS
Azure
Developer Tools
Semaphore UI, the open source web interface for Ansible and OpenTofu, ready the moment it boots.
Overview
Semaphore UI is the open source web interface and REST API for running automation. It turns Ansible playbooks, OpenTofu and Terraform plans, Terragrunt, PowerShell and shell scripts into named templates a team can run from a browser, with scheduled and event triggered runs, live streaming output, a full task history showing who ran what and when, role based access control across projects, and an API and webhook surface for wiring runs into an existing pipeline. It gives a team a controlled front door to its automation instead of a shared laptop and an SSH key.
Why the cloudimg image
The image arrives with the automation server and the engines it drives already installed and registered, so a working automation server is available minutes after launch with no manual configuration and no separate database to run. Nothing serves until the instance has its own secrets: the administrator password, the TLS certificate, the session cookie keys and the key that encrypts stored SSH keys and secrets are all generated on each instance's first boot, so no two deployments can read each other's credentials. Self service registration is closed, including the runner endpoint that would otherwise let an unknown machine join and execute tasks. Paired with a step by step deployment guide and 24/7 cloudimg support.
Common uses
- Give a team a controlled web front door for running Ansible playbooks
- Schedule recurring infrastructure and configuration jobs with a full audit history
- Run OpenTofu and Terraform plans from a browser or trigger them over the API
See it running
Real screenshots taken while testing this image against its deployment guide.
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