r/docker

Community Overview

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.

On Reddit
325K Members

Community Features

This community has a forum

This community offers educational courses

Subreddit Analysis

via GummySearch
Yearly: +35K members
Growth: +11.9% / year

Member 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 Requests
    6 posts in the past month
    1. Any Docker Recommendations?
    2. Need Help: Docker Desktop Not Opening on MacBook Air M5
    3. Help requested - using netcat to listen for broadcast UDP packets
    #1
    Solution Requests
    Any Docker Recommendations? · Need Help: Docker Desktop Not Opening on MacBook Air M5 · Help requested - using netcat to listen for broadcast UDP packets
    6
  • Advice Requests
    2 posts in the past month
    1. 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?
    2. How to Dockerize an application with a rather non-standard architecture?
    #2
    Advice Requests
    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?
    2
  • Pain & Anger
    1 post in the past month
    1. Docker wiped months of my work in a matter of seconds
    #3
    Pain & Anger
    Docker wiped months of my work in a matter of seconds
    1

Topics

  • Docker
    52 posts in the past month
    1. Rootless docker: ping from within container is way faster than host's ping
    2. Docker with no Rosetta 2?
    3. Any Docker Recommendations?
    #1
    Docker
    Rootless docker: ping from within container is way faster than host's ping · Docker with no Rosetta 2? · Any Docker Recommendations?
    52
  • Container
    5 posts in the past month
    #2
    Container
    5
  • Database
    2 posts in the past month
    #3
    Database
    2
  • Management
    2 posts in the past month
    #4
    Management
    2
  • Mysql
    2 posts in the past month
    #5
    Mysql
    2

Flair

  • Mod Approved
    1 post in the past month
    1. 50MB Challenge: can a real Java app fit in a 50MB Docker image?
    #1
    Mod Approved
    50MB Challenge: can a real Java app fit in a 50MB Docker image?
    1

Product recommendations

  • iptv
    9 posts in the past month
    1. I Finally Found the Best IPTV Service That Truly Delivers After Endless Searching! Top Choice (Honest Review)
    2. Best IPTV Canada Reddit
    3. Best IPTV Canada Reddit
    #1
    iptv
    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
    9
  • docker tutorial
    2 posts in the past month
    1. Recommend Docker tutorial
    2. Can anyone recommend a good Docker tutorial?
    #2
    docker tutorial
    Recommend Docker tutorial · Can anyone recommend a good Docker tutorial?
    2

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.