Welcoming Repositories Index Dockerfile Ecosystem
Top Welcoming Open-Source Dockerfile Repositories
Top welcoming Dockerfile repositories. Scored by real 90-day external PR merge rates, maintainer review turnaround speed, and first-time contributor success.
Updated daily • Mon, 31 Aug 2026 UTC
Tracked Repos
165
>100 stars verified
Avg Merge Rate
82%
90-day external PRs
Open GFIs
0
Beginner friendly issues
Welcoming Tier
17
S & A Tier maintainers
Ranked Dockerfile Repositories
Showing top 50 of 165 ranked repositories
| Rank | Repository | Tier | Score | Merge Rate | Good First Issues |
|---|---|---|---|---|---|
| #1 | Caddy server Docker image with Cloudflare plugin enabled for easy reverse proxying. | B•Solid | 80.8 | 100.0% | - |
| #2 | Community project for building application containers | S•Elite | 78.7 | 98.4% | - |
| #3 | Docker images with Cypress dependencies and browsers | S•Elite | 76.4 | 100.0% | - |
| #4 | nunit/docs600 Documentation for all active NUnit projects | S•Elite | 75.1 | 93.0% | - |
| #5 | nodejs/docker-node8,580 Official Docker Image for Node.js :whale: :turtle: :rocket: | S•Elite | 74.9 | 90.0% | - |
| #6 | Uptime Kuma - Home Assistant Community App | B•Solid | 73.8 | 97.1% | - |
| #7 | Home Assistant base images | S•Elite | 72.5 | 90.9% | - |
| #8 | Atlantis integration for Infracost. Shows cloud cost estimates for Terraform in pull requests. | S•Elite | 71.0 | 100.0% | - |
| #9 | Multi-arch PiAware docker container including support for bladeRF, RTLSDR, SoapySDR. Includes dump1090 & dump978 (amd64, arm/v6, arm/v7, arm64v8) | B•Solid | 70.7 | 100.0% | - |
| #10 | Dockerfiles I use for development | B•Solid | 70.3 | 100.0% | - |
| #11 | 🛡️ This distroless Unbound Docker image is based on Alpine Linux with focus on security, privacy, performance and a small image size. And with Pi-hole in mind. | B•Solid | 70.1 | 90.4% | - |
| #12 | Docker images with Gradle | A•Welcoming | 68.1 | 100.0% | - |
| #13 | The simplest demo of chrome automation by python and selenium in AWS Lambda | B•Solid | 67.8 | 100.0% | - |
| #14 | PostgreSQL Docker images with the extensions you actually need -- pre-built, composable, no compilation. | B•Solid | 67.0 | 76.9% | - |
| #15 | Optimized Docker image for Rails applications | B•Solid | 66.8 | 99.5% | - |
| #16 | An all-inclusive protoc Docker image | B•Solid | 66.8 | 93.9% | - |
| #17 | Official ModSecurity Docker + Core Rule Set (CRS) images | B•Solid | 66.5 | 85.7% | - |
| #18 | Documentation for products made by Kagi Inc | B•Solid | 66.5 | 81.3% | - |
| #19 | community-operators metadata backing OpenShift OperatorHub | A•Welcoming | 65.7 | 88.3% | - |
| #20 | Monolithic (Single) Docker Container for Immich | B•Solid | 65.0 | 77.3% | - |
| #21 | Latest Nginx with LUA support based on AlmaLinux, Alpine Linux, Amazon Linux, Debian, Fedora, and Ubuntu. | B•Solid | 64.9 | 100.0% | - |
| #22 | Dockerfile for WhisperX: Automatic Speech Recognition with Word-Level Timestamps and Speaker Diarization (Dockerfile, CI image build and test) | A•Welcoming | 64.7 | 33.3% | - |
| #23 | This repo is used to contribute to Windows, Windows Server, and MDOP PowerShell module documentation. | A•Welcoming | 63.2 | 100.0% | - |
| #24 | Curated list of useful Github actions with workflows examples 💡 | B•Solid | 63.1 | 93.3% | - |
| #25 | :package: :whale: Dockerfiles and documentation on tools for public health bioinformatics | A•Welcoming | 62.3 | 70.6% | - |
| #26 | Repository for Azure PowerShell cmdlet documentation published on learn.microsoft.com | A•Welcoming | 61.5 | 82.4% | - |
| #27 | Stable Haskell package sets: vetted consistent packages from Hackage | A•Welcoming | 59.6 | 100.0% | - |
| #28 | dotnet/dotnet-docker4,874 Official container images for .NET | A•Welcoming | 59.6 | 77.3% | - |
| #29 | 🦙 MegaLinter analyzes 50 languages, 22 formats, 21 tooling formats, excessive copy-pastes, spelling mistakes and security issues in your repository sources with a GitHub Action, other CI tools or locally. | A•Welcoming | 58.5 | 91.8% | - |
| #30 | Autoware - the world's leading open-source software project for autonomous driving | A•Welcoming | 58.2 | 81.4% | - |
| #31 | A simple and straightforward Dockerized monerod built from source and exposing standard ports. | B•Solid | 57.7 | 91.7% | - |
| #32 | The canonical source for Kubernetes Operators that are published on OperatorHub.io and part of the default catalog of the Operator Lifecycle Manager. | A•Welcoming | 57.5 | 74.2% | - |
| #33 | k8s runners for GitHub Actions in the enterprise, made for humans | B•Solid | 56.7 | 93.8% | - |
| #34 | B•Solid | 56.4 | 75.0% | - | |
| #35 | Docker image with PHP-FPM 8.5 & Nginx 1.30 on Alpine Linux | B•Solid | 56.2 | 100.0% | - |
| #36 | Official Docker Image for Leantime https://leantime.io | B•Solid | 54.8 | 100.0% | - |
| #37 | Nextcloud Docker image | B•Solid | 54.7 | 84.8% | - |
| #38 | B•Solid | 53.5 | 0.0% | - | |
| #39 | B•Solid | 53.4 | 75.6% | - | |
| #40 | B•Solid | 53.2 | 0.0% | - | |
| #41 | Dockerfiles of things | B•Solid | 53.1 | 66.7% | - |
| #42 | rTorrent and ruTorrent Docker image | B•Solid | 52.4 | 75.6% | - |
| #43 | GitHub Action that sends a Telegram message. | B•Solid | 51.6 | 100.0% | - |
| #44 | B•Solid | 49.8 | 0.0% | - | |
| #45 | Paperless Home Assistant Addon | B•Solid | 49.7 | 100.0% | - |
| #46 | tianon/dockerfiles1,119 A semi-random collection of odds and ends. | B•Solid | 49.5 | 50.0% | - |
| #47 | Containerized web based help desk and shared inbox | B•Solid | 48.7 | 100.0% | - |
| #48 | B•Solid | 48.5 | 0.0% | - | |
| #49 | The Compose specification | B•Solid | 47.7 | 100.0% | - |
| #50 | Ghidra Client/Server Docker Image | B•Solid | 47.5 | 100.0% | - |
How to Get Your Dockerfile PR Merged
1
Check C-Rank™ First: Pick projects with S or A tiers to avoid maintainer ghosts and slow review cycles.
2
Run Local Verification: Ensure test suites and formatting linters pass before opening a pull request.
3
Submit in Maintainer Windows: Check the repository report card to submit when maintainers are most active.
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Frequently Asked Questions: Dockerfile Open Source
What is the most welcoming Dockerfile open-source repository?
The highest-ranked Dockerfile repository on GetMerged is currently homeall/caddy-reverse-proxy-cloudflare, with a C-Rank score of 80.8/100 and a 100.0% PR merge rate.
How can I find good first issues in Dockerfile?
You can browse verified beginner-friendly issues in Dockerfile by visiting our curated Good First Issues directory at getmerged.abhishekco.de/good-first-issue/dockerfile.
What makes a Dockerfile repository ‘Super Welcoming’ on GetMerged?
A ‘Super Welcoming’ (S-Tier) Dockerfile repository demonstrates an external PR merge rate above 80%, a median first response time within 24 to 48 hours, active review feedback, and clear onboarding documentation.