r/docker

Community Overview
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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 314K 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 36K members have joined in the past year. Popular discussion topics include Docker, Container, and Server. Common discussion themes are Solution Requests and Advice Requests. Product recommendations often mention iptv and docker tutorial.

On Reddit
314K Members

Community Topics

Community Features

Forum

This community has a forum

Courses

This community offers educational courses

Subreddit Analysis

via GummySearch
Yearly: +36K members
Growth: +13.0% / 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: 18K members

Past year (monthly)

  • Jul: 2K members
  • Aug: 3K members
  • Sep: 2K members
  • Oct: 3K members
  • Nov: 4K members
  • Dec: 3K members
  • Jan: 4K members
  • Feb: 3K members
  • Mar: 3K members
  • Apr: 3K members
  • May: 3K members
  • Jun: 2K members

Themes

  • Solution Requests
    30 posts in the past month
    1. Best Way to Deploy Docker Images/Containers in Production?
    2. I got tired of WSL2 never giving disk space back, so my open-source cleaner now compacts the vhdx for you
    3. Installing Docker in Windows vs Linux VM?
    #1
    Solution Requests
    Best Way to Deploy Docker Images/Containers in Production? · I got tired of WSL2 never giving disk space back, so my open-source cleaner now compacts the vhdx for you · Installing Docker in Windows vs Linux VM?
    30
  • Advice Requests
    12 posts in the past month
    1. what's in your docker compose stack that you'd mass-recommend to other devs
    2. Gosh, i dont understand Docker at all
    3. How do you protect on-prem container deployments from reverse engineering & misuse?
    #2
    Advice Requests
    what's in your docker compose stack that you'd mass-recommend to other devs · Gosh, i dont understand Docker at all · How do you protect on-prem container deployments from reverse engineering & misuse?
    12
  • Pain & Anger
    2 posts in the past month
    1. Help! Docker's making me go crazy
    2. container update causes eventual system hang
    #3
    Pain & Anger
    Help! Docker's making me go crazy · container update causes eventual system hang
    2
  • Ideas
    1 post in the past month
    1. One terminal view for all my containers across all my servers (OT)
    #4
    Ideas
    One terminal view for all my containers across all my servers (OT)
    1

Topics

  • Docker
    365 posts in the past month
    1. No one in Spain can docker pull right now because of the football
    2. We just got breached because of vulnerabilities in our docker images that have been public knowledge for 8 months
    3. PSA: Docker bypasses UFW - your database might be exposed even with firewall enabled
    #1
    Docker
    No one in Spain can docker pull right now because of the football · We just got breached because of vulnerabilities in our docker images that have been public knowledge for 8 months · PSA: Docker bypasses UFW - your database might be exposed even with firewall enabled
    365
  • Container
    29 posts in the past month
    1. I tried to understand containers by building a tiny runtime in pure Bash
    2. How do you protect on-prem container deployments from reverse engineering & misuse?
    3. Moving container data to new host
    #2
    Container
    I tried to understand containers by building a tiny runtime in pure Bash · How do you protect on-prem container deployments from reverse engineering & misuse? · Moving container data to new host
    29
  • Server
    23 posts in the past month
    1. What VM to use on homelab for purpose of using Docker for game server hosting
    2. Made a tool to migrate Docker Compose stacks between servers — handles volumes, databases, the works
    3. Move to a new server
    #3
    Server
    What VM to use on homelab for purpose of using Docker for game server hosting · Made a tool to migrate Docker Compose stacks between servers — handles volumes, databases, the works · Move to a new server
    23
  • Compose
    21 posts in the past month
    1. I built a visual drag-and-drop builder for docker-compose.yml — runs entirely in the browser
    2. Who's responsibility is to write dockerfile and docker compose whether developer or devops
    3. Free browser-based Docker Compose auditor — flags 0.0.0.0 bindings, hardcoded secrets, missing healthchecks, port collisions. No signup, nothing leaves your browser.
    #4
    Compose
    I built a visual drag-and-drop builder for docker-compose.yml — runs entirely in the browser · Who's responsibility is to write dockerfile and docker compose whether developer or devops · Free browser-based Docker Compose auditor — flags 0.0.0.0 bindings, hardcoded secrets, missing healthchecks, port collisions. No signup, nothing leaves your browser.
    21
  • Containers
    18 posts in the past month
    1. One terminal view for all my containers across all my servers (OT)
    2. How to isolate docker containers in network but allow one container to access others?
    3. What's your go-to base image for production containers?
    #5
    Containers
    One terminal view for all my containers across all my servers (OT) · How to isolate docker containers in network but allow one container to access others? · What's your go-to base image for production containers?
    18

Flair

  • Approved
    8 posts in the past month
    1. One terminal view for all my containers across all my servers (OT)
    2. Spent the past few weeks building a docker clone to learn how docker works internally
    3. Learn Docker in a Month of Lunches • Elton Stoneman & Bret Fisher
    #1
    Approved
    One terminal view for all my containers across all my servers (OT) · Spent the past few weeks building a docker clone to learn how docker works internally · Learn Docker in a Month of Lunches • Elton Stoneman & Bret Fisher
    8
  • Solved
    1 post in the past month
    1. Help restoring permissions in my docker setup
    #2
    Solved
    Help restoring permissions in my docker setup
    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
View full analysis on GummySearchSynced 6/22/2026

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 314K 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.
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Added 3/13/2026

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