# runatlantis/atlantis

Terraform Pull Request Automation

Repository: https://github.com/runatlantis/atlantis
Canonical: https://ross.abutalabs.com/products/atlantis
Homepage: https://www.runatlantis.io
Language: Go
License: Apache-2.0
License Family: permissive
Topics: terraform, devops, atlantis, golang, go, sre, hacktoberfest, automation, tacos
Last push: 2026-08-26T04:30:31+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 86, longevity 100
- inputs: {"age_days": 3130, "days_push": 7, "days_rel": 13, "gap_med": 31, "n_releases_24m": 22}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 9255, forks 1327 (observed 2026-08-28T04:10:29.104685+00:00)

## What it is
Atlantis is a self-hosted Go application that automates Terraform workflows through pull requests. It listens for webhook events from GitHub, GitLab, Bitbucket, or Azure DevOps, runs terraform plan/apply remotely, and comments the output back on the pull request.

## Use cases
- automate terraform plan and apply on pull requests
- let developers run terraform without sharing cloud credentials
- require approvals before terraform applies
- get audit logs of infrastructure changes
- standardize terraform workflows across a team
- review infrastructure changes before merging

## When to choose
- your team manages Terraform through pull requests and wants automation
- you want developers to trigger Terraform without direct credentials access
- you need approval gates and audit trails for infrastructure changes
- you prefer a self-hosted tool where credentials stay in your infrastructure

## When to avoid
- you use OpenTofu or other IaC tools without Terraform compatibility needs covered elsewhere
- you prefer CI-native pipelines (e.g., GitHub Actions) over a separate self-hosted service
- you don't use pull-request-based workflows for infrastructure

## Facets
- artifact type: service
- maturity: stable
- function: workflow-automation, deployment, infrastructure-as-code, ci-cd
- domain: infrastructure-as-code, self-hosted
- platform: self-hosted, go
- tags: terraform, pull-request-automation, gitops, webhooks, github, gitlab, bitbucket, azure-devops, devops, automation, docker, kubernetes, linux

## Member repositories
- runatlantis/atlantis (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:29.104685+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 2026-08-29T17:23:12.497576+00:00, confidence not recorded.
  - readme: https://github.com/runatlantis/atlantis (fetched 2026-08-28T04:10:29.104685+00:00, sha e929c9c28186)
  - homepage: https://www.runatlantis.io (fetched 2026-08-29T08:22:54.793318+00:00, sha 398b45892753)
  - site_page: https://www.runatlantis.io/docs (fetched 2026-08-29T08:22:54.802117+00:00, sha 146fda8ecb39)
- Data as of 2026-08-30T08:39:29.467469+00:00.