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 • Sat, 10 Oct 2026 UTC
Tracked Repos
165
>100 stars verified
Avg Merge Rate
88%
90-day external PRs
Open GFIs
0
Beginner friendly issues
Welcoming Tier
23
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. | A•Welcoming | 69.3 | 100.0% | - |
| #2 | Community project for building application containers | A•Welcoming | 67.3 | 98.9% | - |
| #3 | Docker images with Gradle | A•Welcoming | 64.9 | 100.0% | - |
| #4 | Uptime Kuma - Home Assistant Community App | A•Welcoming | 64.6 | 98.0% | - |
| #5 | dotnet/dotnet-docker4,875 Official container images for .NET | A•Welcoming | 64.5 | 66.7% | - |
| #6 | community-operators metadata backing OpenShift OperatorHub | A•Welcoming | 63.2 | 77.3% | - |
| #7 | Multi-arch PiAware docker container including support for bladeRF, RTLSDR, SoapySDR. Includes dump1090 & dump978 (amd64, arm/v6, arm/v7, arm64v8) | B•Solid | 63.1 | 100.0% | - |
| #8 | unofficial unbound multiarch docker image | A•Welcoming | 62.9 | 91.8% | - |
| #9 | Autoware - the world's leading open-source software project for autonomous driving | A•Welcoming | 61.9 | 100.0% | - |
| #10 | 🦙 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 | 61.8 | 90.3% | - |
| #11 | Stable Haskell package sets: vetted consistent packages from Hackage | A•Welcoming | 61.5 | 81.8% | - |
| #12 | dnscrypt-proxy multiarch docker image | A•Welcoming | 61.2 | 89.1% | - |
| #13 | Fail2ban Docker image | B•Solid | 61.0 | 100.0% | - |
| #14 | Studio Code Server - Home Assistant Community Add-ons | B•Solid | 60.9 | 100.0% | - |
| #15 | Optimized Docker image for Rails applications | A•Welcoming | 60.4 | 98.9% | - |
| #16 | Official ModSecurity Docker + Core Rule Set (CRS) images | A•Welcoming | 59.7 | 80.0% | - |
| #17 | 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 | 59.6 | 67.3% | - |
| #18 | :package: :whale: Dockerfiles and documentation on tools for public health bioinformatics | A•Welcoming | 59.5 | 52.2% | - |
| #19 | B•Solid | 59.2 | 83.3% | - | |
| #20 | nodejs/docker-node8,580 Official Docker Image for Node.js :whale: :turtle: :rocket: | B•Solid | 58.6 | 80.0% | - |
| #21 | Docker images with Cypress dependencies and browsers | A•Welcoming | 58.6 | 100.0% | - |
| #22 | Monolithic (Single) Docker Container for Immich | A•Welcoming | 58.4 | 80.0% | - |
| #23 | Dockerfiles and configuration scripts for the Docker Hub Official Couchbase images | B•Solid | 58.1 | 80.0% | - |
| #24 | 🛡️ 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. | A•Welcoming | 58.0 | 89.1% | - |
| #25 | Paperless Home Assistant Addon | B•Solid | 57.1 | 100.0% | - |
| #26 | An all-inclusive protoc Docker image | A•Welcoming | 56.9 | 94.4% | - |
| #27 | Super Lightweight Nginx Image | B•Solid | 56.7 | 100.0% | - |
| #28 | The simplest demo of chrome automation by python and selenium in AWS Lambda | A•Welcoming | 56.4 | 100.0% | - |
| #29 | Atlantis integration for Infracost. Shows cloud cost estimates for Terraform in pull requests. | B•Solid | 56.3 | 100.0% | - |
| #30 | Base image for making the creation of customized Odoo environments a piece of cake | A•Welcoming | 56.1 | 65.0% | - |
| #31 | Docker hub - community managed image | B•Solid | 55.6 | 83.3% | - |
| #32 | the Official Erlang OTP image on Docker Hub | A•Welcoming | 55.5 | 100.0% | - |
| #33 | B•Solid | 54.8 | 75.0% | - | |
| #34 | tianon/dockerfiles1,119 A semi-random collection of odds and ends. | B•Solid | 54.7 | 93.1% | - |
| #35 | B•Solid | 53.7 | 100.0% | - | |
| #36 | Nextcloud Docker image | B•Solid | 53.2 | 86.7% | - |
| #37 | AnonAddy Docker image | B•Solid | 53.1 | 100.0% | - |
| #38 | This repo is used to contribute to Windows, Windows Server, and MDOP PowerShell module documentation. | B•Solid | 53.1 | 77.8% | - |
| #39 | Dockerfiles I use for development | A•Welcoming | 53.1 | 100.0% | - |
| #40 | Curated list of useful Github actions with workflows examples 💡 | B•Solid | 51.4 | 80.0% | - |
| #41 | B•Solid | 51.2 | 100.0% | - | |
| #42 | Container definitions for docker, kubernetes, helm, and whatever containers come next! | B•Solid | 51.1 | 50.0% | - |
| #43 | Repository for Azure PowerShell cmdlet documentation published on learn.microsoft.com | B•Solid | 50.8 | 72.7% | - |
| #44 | jakzal/phpqa1,320 Docker image that provides static analysis tools for PHP | B•Solid | 50.8 | 100.0% | - |
| #45 | rTorrent and ruTorrent Docker image | B•Solid | 50.7 | 75.0% | - |
| #46 | B•Solid | 50.6 | 100.0% | - | |
| #47 | Dockerfiles of things | B•Solid | 50.6 | 66.7% | - |
| #48 | B•Solid | 50.4 | 100.0% | - | |
| #49 | LibreNMS Docker image | B•Solid | 50.4 | 66.7% | - |
| #50 | B•Solid | 50.3 | 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 69.3/100 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.