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 316K members. It uses a forum format for communication. It also includes courses or structured learning. On the Hive Index it ranks #9 in the Self-Hosting communities list.

Roughly 37K members have joined in the past year. Popular discussion topics include Docker, Struggling, and Container. Common discussion themes are Solution Requests and Advice Requests. Product recommendations often mention iptv and docker tutorial.

On Reddit
316K Members

Community Topics

Community Features

Forum

This community has a forum

Courses

This community offers educational courses

Subreddit Analysis

via GummySearch
Yearly: +37K members
Growth: +13.1% / 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: 20K members

Past year (monthly)

  • 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: 3K members
  • Jul: 1K members

Themes

  • Solution Requests
    14 posts in the past month
    1. ELI5 Can selinux policies be applied inside a docker container?
    2. Running a container as non-root user - Security implications?
    3. How to fix the subnet configuration
    #1
    Solution Requests
    ELI5 Can selinux policies be applied inside a docker container? · Running a container as non-root user - Security implications? · How to fix the subnet configuration
    14
  • Advice Requests
    5 posts in the past month
    1. Noobie being lost...
    2. How to download docker
    3. help!!
    #2
    Advice Requests
    Noobie being lost... · How to download docker · help!!
    5
  • Ideas
    4 posts in the past month
    1. iptables MASQUERADE not working in Docker Compose NAT Gateway simulator
    2. Cloud and system design sandbox for students to practice
    3. [Concept / Idea] SimCity meets Docker: Visualizing the Homelab as a Living, Interactive 3D City
    #3
    Ideas
    iptables MASQUERADE not working in Docker Compose NAT Gateway simulator · Cloud and system design sandbox for students to practice · [Concept / Idea] SimCity meets Docker: Visualizing the Homelab as a Living, Interactive 3D City
    4
  • Pain & Anger
    1 post in the past month
    1. DeprecationWarning for langchain_community.document_loaders
    #4
    Pain & Anger
    DeprecationWarning for langchain_community.document_loaders
    1
  • Self-Promotion
    1 post in the past month
    1. I built DockScope: a 3D dependency graph of your Docker stack with live metrics, logs, and a terminal, all in the browser
    #5
    Self-Promotion
    I built DockScope: a 3D dependency graph of your Docker stack with live metrics, logs, and a terminal, all in the browser
    1

Topics

  • Docker
    104 posts in the past month
    1. compose.yaml Vs docker-compose.yml
    2. What do you do with secrets in Git repo driven Docker servers?
    3. iptables MASQUERADE not working in Docker Compose NAT Gateway simulator
    #1
    Docker
    compose.yaml Vs docker-compose.yml · What do you do with secrets in Git repo driven Docker servers? · iptables MASQUERADE not working in Docker Compose NAT Gateway simulator
    104
  • Struggling
    51 posts in the past month
    1. Unprecedented recourse usage between 2 identical containers
    #2
    Struggling
    Unprecedented recourse usage between 2 identical containers
    51
  • Container
    43 posts in the past month
    1. trying to set up a scheduled PostgresDB backup inside a docker container
    2. Unprecedented recourse usage between 2 identical containers
    #3
    Container
    trying to set up a scheduled PostgresDB backup inside a docker container · Unprecedented recourse usage between 2 identical containers
    43
  • Containers
    4 posts in the past month
    1. Lazy docker for apple containers
    #4
    Containers
    Lazy docker for apple containers
    4
  • Setup
    4 posts in the past month
    1. Moving my config to a bind mount
    #5
    Setup
    Moving my config to a bind mount
    4

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 7/11/2026

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 316K 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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