# semaphoreio/semaphore

All-in-one delivery platform for AI-driven development.

Repository: https://github.com/semaphoreio/semaphore
Canonical: https://ross.abutalabs.com/products/semaphoreio-semaphore
Homepage: https://semaphore.io
Language: Elixir
License: NOASSERTION
License Family: other
Topics: build-pipelines, cd, ci, continuous-delivery, continuous-integration, elixir, golang
Last push: 2026-08-26T17:03:20+00:00

## Health v2 (maintenance only)
Score: 71/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 51, longevity 42
- inputs: {"age_days": 589, "days_push": 7, "days_rel": 327, "gap_med": 13.0, "n_releases_24m": 13}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1585, forks 86 (observed 2026-08-28T04:05:07.535854+00:00)

## What it is
Semaphore is an open-source CI/CD platform for building, testing, and deploying software, with a YAML-based pipeline configuration and self-hosted agents. It ships as a Community Edition (Apache 2.0) that can be installed on a single Linux server or Kubernetes cluster, alongside commercial cloud and enterprise editions.

## Use cases
- set up continuous integration for my github repo
- self-host a ci/cd server on kubernetes
- run parallel test pipelines for a monorepo
- migrate from jenkins or circleci to a faster ci
- track flaky tests and build performance dashboards
- deploy applications automatically after tests pass
- run ci jobs on my own infrastructure with self-hosted agents

## When to choose
- you want a fast, self-hosted alternative to Jenkins, GitHub Actions, or CircleCI
- your team needs Kubernetes-native CI with horizontally scalable control plane
- you want flaky test detection, test reports, and CI metrics dashboards built in
- you prefer an open-source core with an optional commercial support path

## When to avoid
- you need a minimal single-binary CI runner for tiny projects
- you cannot provide a domain, public IP, and 16GB RAM / 8 vCPU host for the control plane
- you only want a hosted solution with zero infrastructure management (use Semaphore Cloud instead)

## Facets
- artifact type: application
- maturity: active
- function: ci-cd, deployment, developer-tools, monitoring
- domain: self-hosted, developer-tools
- platform: self-hosted
- tags: continuous-integration, continuous-delivery, build-pipelines, self-hosted-agents, monorepo, test-reports, agent-native, devops, automation, linux, kubernetes, docker, web-server

## Member repositories
- semaphoreio/semaphore (main) score 71

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:07.535854+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:55:39.270403+00:00, confidence not recorded.
  - readme: https://github.com/semaphoreio/semaphore (fetched 2026-08-28T04:05:07.535854+00:00, sha 9b1bb2fe1b91)
  - homepage: https://semaphore.io (fetched 2026-08-29T11:26:21.089307+00:00, sha e5d316568253)
  - site_page: https://docs.semaphore.io/ (fetched 2026-08-29T11:26:21.100799+00:00, sha 3b4f7c732ae5)
  - site_page: https://docs.semaphore.io/CE/getting-started/install (fetched 2026-08-29T11:26:21.102617+00:00, sha bb1e2eb216bd)
  - site_page: https://semaphore.io/about (fetched 2026-08-29T11:26:21.104289+00:00, sha dacd3a680beb)
  - site_page: https://semaphore.io/pricing (fetched 2026-08-29T11:26:21.098810+00:00, sha 1635cca18bd7)
- Data as of 2026-08-30T08:39:29.467469+00:00.