Discourse — system requirements

Self-hosted forum and community discussion platform, deployed via an all-in-one Docker container. · website · repository

Minimum RAM

1 GB

“1 GB RAM minimum (with [swap][swap])”

Scope: Official all-in-one Docker install, general (swap required at this size) · official source · retrieved 2026-07-26

Minimum CPU cores

1 core

“modern single core CPU, dual core recommended”

Scope: Official all-in-one Docker install, general · official source · retrieved 2026-07-26

Recommended CPU cores

2 cores

“modern single core CPU, dual core recommended”

Scope: Official all-in-one Docker install, general · official source · retrieved 2026-07-26

No official figure published for: recommended RAM

INSTALL.md states a RAM minimum and a CPU minimum/recommended pair, but no separate recommended RAM figure.

We publish nothing we can't source. Evidence of the gap.

External services

Image: discourse/discourse · compressed size (amd64): 1259 MB · architectures: amd64, arm64 · source, retrieved 2026-08-31

docker-mailserver — Self-hosted, single-container mail server (SMTP, IMAP, LDAP, anti-spam, anti-virus) configured entirely via files, no SQL database.
Dockge — Web UI for managing Docker Compose stacks: edit, start, stop, and monitor compose.yaml files.
Frigate — Open-source network video recorder with real-time local AI object detection for IP cameras.