r/docker

Updated Aug 25

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

319,978

320K

Online now

not captured in the last snapshot

Posts per day

no sample yet

Comments per post

no sample yet

Growth · 7d

not enough history yet

Growth · 30d

not enough history yet

Promo tolerance

medium

read the sidebar rules first

Last post

no sample yet

Distinct posters

no sample yet

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

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See the full lists on similar subreddits.

r/docker — frequently asked

How many members does r/docker have?

r/docker has 319,978 members as of our most recent crawl on Aug 25. 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?

We don't have 30 days of snapshot history for r/docker yet, so we're not going to invent a growth number. We've been tracking it since Aug 7; the chart fills in as history accumulates.

How active is r/docker?

We don't have a reliable posting-rate sample for r/docker yet. Subscriber count alone is a poor guide to whether a community is active, so treat this one as unverified until the next sample lands.

Can I promote my product in r/docker?

Our read on r/docker is medium promo tolerance. A product mention is fine when it genuinely answers the question asked, and unwelcome when it does not. Always read the sidebar rules before you post; 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.

Watch these subreddits

Rankings go stale. Prowlo watches these subreddits daily and pings you the moment someone describes the problem you solve.

r/SaaS · 4m ago

“Our analytics bill tripled overnight. Actively shopping for an alternative this week — what’s good?”

Match · 86%Buying signal

Read-only · Human-in-the-loop
Prowlo never posts for you

r/docker: 320K members — stats & growth (Aug 2026)