r/docker
Docker: An open source project to pack, ship and run any application as a lightweight containers
Founded July 2013 · Public — anyone can post
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.
Members
323,131
323K
Online now
—
not captured in the last snapshot
Posts per day
2.0
from the last 100 posts, spanning 49.5 days
Comments per post
—
no sample yet
Growth · 7d
—
not enough history yet
Growth · 30d
+0.6%
+1.9K members · ≈33d
Published rules
10
3 mention promotion — quoted below
Last post
Oct 11
sampled Oct 12
Distinct posters
96%
of the last 100 posts
Tracking since Aug 7 · growth spans are the real distance between snapshots, not rounded windows. Posts/day is measured from the community’s own newest posts on Reddit, not from what Prowlo happens to crawl.
Member growth
What r/docker's rules say about promotion
3 of 10 published rules mention promotion, advertising or spam. Quoted from the community's own rules page, not summarised.
Promotion and Self-Promotion
rule 3 of 10
- Self-promotion is allowed only with prior **mod approval**. - Educational content, tutorials, and open-source tools may be shared if they provide genuine value. - Job offers, hiring posts, or solicitations for freelance work must also receive **mod approval**. - Posts offering paid services, tools, or courses require **mod approval**.
Removal reason shown to posters: **Report Reason:**
No Spam or Unsolicited Advertising
rule 8 of 10
- Spam, repetitive posts, or excessive self-promotion without community engagement is prohibited.
Removal reason shown to posters: Spam / Unsolicited promotion
Follow Reddit’s Overall Content Policy
rule 9 of 10
- Ensure your content aligns with Reddit’s global policies regarding harassment, spam, and misinformation.
Removal reason shown to posters: Violation of Reddit’s content policy
The other 7
- Be Respectful and Professional
- Stay On-Topic
- Provide Relevant Details in Support Requests
- Avoid Low-Effort Posts and AI-Generated Content Without Validation
- Link Posts Must Include Context
- No Piracy, Copyright Violations, or Plagiarism
- Moderator Discretion
Read from r/docker’s published rules on Mar 12. Communities change their rules without notice and enforce requirements (karma, account age, flair) that may live in the sidebar or automod rather than here — the source page is the authority.
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Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc.
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.
All things selfhosting (hosted by yourself) for beginners and newbies. The scope of this community also includes discussion of hosting in general: homelabs, VPS hosting, colocation, dedicated, cloud providers, and managed infrastructure.
Shared audience
Posters in r/docker also post in…
Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc.
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.
##### Welcome to /r/DevOps > > [](#icon-exclamation-sign) */r/DevOps is a subreddit dedicated to the DevOps movement where we discuss upcoming technologies, meetups, conferences and everything that brings us together to build the future of IT systems* > > [](#icon-question-sign) What is DevOps? [Learn about it on our wiki!](/r/DevOps/wiki) > > [](#icon-picture) [Traffic stats & metrics](http://www.reddit.com/r/devops/wiki/index#wiki_metrics) ##### [](#icon-info) Rules and guidelines > > [](
A reddit dedicated to the profession of Computer System Administration.
Subreddit dedicated to the news and discussions about the creation and use of technology and its surrounding issues.
See the full lists on similar subreddits.
r/docker — frequently asked
How many members does r/docker have?
r/docker has 323,131 members as of our most recent crawl on Oct 12. Prowlo re-checks tracked communities on a rolling schedule, so this figure moves rather than sitting frozen at whatever it was when a scraper last ran.
Is r/docker growing?
Over the last ≈33 days r/docker changed by +0.6% — a gain of 1.9K members. We compare against the nearest snapshot we actually hold and state the real span rather than rounding it to a clean "30 days".
How active is r/docker?
Around 2.0 posts per day, measured from the newest 100 posts on Reddit, which span 49.5 days. Posting rate matters more than subscriber count when you're deciding where to spend your time — it determines how long your comment stays visible.
When was r/docker created?
r/docker was founded in July 2013 and is a public — anyone can post community. Age matters: an older community with steady growth has survived Reddit's moderation churn; a young one with a spike may not.
Who posts in r/docker?
Of the last 100 posts we sampled, 96% came from distinct accounts; the newest was published Oct 11. A low share means a feed dominated by a handful of accounts (bots, mods, or one prolific poster) rather than a community.
Can I promote my product in r/docker?
r/docker publishes 10 rules and 3 of them address promotion. The first, “Promotion and Self-Promotion”, says: - Self-promotion is allowed only with prior **mod approval**. - Educational content, tutorials, and open-source tools may be shared if they provide genuine value. - Job offers, hiring posts, or solicitations for… Read the full rule text on this page and the community's rules page before posting — moderator enforcement is the thing that actually decides.
How do I monitor r/docker for mentions?
Hit Watch on this page. Prowlo starts crawling r/docker into your Dataset — every new post indexed and embedded, searchable semantically, queryable by your AI agent over MCP, and able to trigger keyword alerts in Slack. Prowlo is read-only; it never posts on your behalf.
Can my AI agent read r/docker's stats?
Yes. Everything on this page is one MCP tool call away: catalog_get_subreddit returns r/docker's members, growth, promo tolerance and similar communities as typed JSON — free, no credits. Connect your agent to api.prowlo.com/mcp and it can vet the community and start watching it in the same conversation.
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