About r/docker
Docker is an open-source project to easily create lightweight, portable, self-sufficient containers from any application. The same container that a developer builds and tests on a laptop can run at scale, in production, on VMs, bare metal, OpenStack clusters, public clouds and more.
The community at a glance
r/docker is a Subreddit for Self-Hosters with roughly 325K members. It uses a forum format for communication. It also includes courses or structured learning. It is the 5th largest community in the Self-Hosting topic page.
Roughly 35K members have joined in the past year. Popular discussion topics include Docker, Container, and Database. Common discussion themes are Solution Requests and Advice Requests. Product recommendations often mention iptv and docker tutorial.
Community Topics
Subreddit Analysis
via GummySearchMember growth over time
All time (yearly)
- 2014: 3K members
- 2015: 4K members
- 2016: 6K members
- 2017: 10K members
- 2018: 26K members
- 2019: 30K members
- 2020: 41K members
- 2021: 26K members
- 2023: 40K members
- 2024: 34K members
- 2025: 77K members
- 2026: 29K members
Past year (monthly)
- Dec: 3K members
- Jan: 4K members
- Feb: 3K members
- Mar: 3K members
- Apr: 3K members
- May: 3K members
- Jun: 3K members
- Jul: 3K members
- Aug: 3K members
- Sep: 2K members
- Oct: 2K members
- Nov: 568 members
Themes
- Solution Requests6 posts in the past month
- Any Docker Recommendations?
- Need Help: Docker Desktop Not Opening on MacBook Air M5
- Help requested - using netcat to listen for broadcast UDP packets
#16Solution RequestsAny Docker Recommendations? · Need Help: Docker Desktop Not Opening on MacBook Air M5 · Help requested - using netcat to listen for broadcast UDP packets - Advice Requests2 posts in the past month
- I'm working as L1 Linux System Admin. I want to learn Docker & Kubernetes in a structured way. Can you please suggest some good courses for Docker & Kubernetes which is still relevant in 2026?
- How to Dockerize an application with a rather non-standard architecture?
#22Advice RequestsI'm working as L1 Linux System Admin. I want to learn Docker & Kubernetes in a structured way. Can you please suggest some good courses for Docker & Kubernetes which is still relevant in 2026? · How to Dockerize an application with a rather non-standard architecture? - Pain & Anger1 post in the past month
- Docker wiped months of my work in a matter of seconds
#31Pain & AngerDocker wiped months of my work in a matter of seconds
Topics
- Docker52 posts in the past month
- Rootless docker: ping from within container is way faster than host's ping
- Docker with no Rosetta 2?
- Any Docker Recommendations?
#152DockerRootless docker: ping from within container is way faster than host's ping · Docker with no Rosetta 2? · Any Docker Recommendations? - Container5 posts in the past month#25Container
- Database2 posts in the past month#32Database
- Management2 posts in the past month#42Management
- Mysql2 posts in the past month#52Mysql
Flair
- Mod Approved1 post in the past month
- 50MB Challenge: can a real Java app fit in a 50MB Docker image?
#11Mod Approved50MB Challenge: can a real Java app fit in a 50MB Docker image?
Product recommendations
- iptv9 posts in the past month
- I Finally Found the Best IPTV Service That Truly Delivers After Endless Searching! Top Choice (Honest Review)
- Best IPTV Canada Reddit
- Best IPTV Canada Reddit
#19iptvI Finally Found the Best IPTV Service That Truly Delivers After Endless Searching! Top Choice (Honest Review) · Best IPTV Canada Reddit · Best IPTV Canada Reddit - docker tutorial2 posts in the past month
- Recommend Docker tutorial
- Can anyone recommend a good Docker tutorial?
#22docker tutorialRecommend Docker tutorial · Can anyone recommend a good Docker tutorial?
Community Reviews
Frequently asked questions
- Who is r/docker for?
- Best for Self-Hosters enthusiasts looking for a Reddit-based community with forum discussion.
- Is r/docker free to join?
- This listing is not marked as paid-only. Access rules and any fees are decided by the community.
- How many members does r/docker have?
- Roughly 325K members, based on figures reported by the community or its host. Member counts are approximate and change over time.
- What platform is r/docker on?
- r/docker runs on Reddit. Reddit communities (or "subreddits") are forum-based groups on the popular social news aggregation, web content rating, and discussion website Reddit. Reddit is commonly known as "the front page of the internet". Users submit content to the site such as links, text posts, and images, which are then voted up or down and discussed by other members. From investing Reddit communities, to professional ones, to ones just for laughs, you're likely to find a community for you on Reddit.
- What topics does r/docker cover?
- On the Hive Index, r/docker is organized under Self-Hosters.
- How do I join r/docker?
- You can join r/docker by clicking this link, or pressing the "Go to community" button above.
- What are the Self-Hosting communities like?
- Communities for people running their own servers, home labs, and self-hosted applications. Reddit dominates with massive communities for home automation, self-hosted media servers, and container orchestration, covering everything from beginner setup to advanced homelab builds.
Monthly Stats
- 20
- Views /mo (+33%)
- 20
- Visitors /mo (+33%)
- 0
- Referrals /mo (-100%)
Similar Communities
12r/selfhosted
A place to share, discuss, discover, assist with, gain assistance for, and critique self-hosted alternatives to our favorite web apps, web services, and online tools.
Matrix.org
open protocol and community for decentralized chat/real-time comms and self-hosting guidance.
Lemmy SelfHosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don’t control.
Jellyfin
for self-hosted media server deployment, plugin development, and automation tips.
Hugging Face Self-Hosted
resources for spinning up inference locally/privately.
Proxmox
virtualization and self-hosted infrastructure community (clusters, containers, automation).