TMAegis
More rules for cockroachdb

TMA-COCKROACHDB-2.2

Ensure Each CockroachDB Node Runs as a Dedicated Process on a Separate Host

MediumLevel 1Automatedcockroachdb

Description

For all self-hosted VM or bare-metal production deployments (on-premises or on cloud providers like AWS, GCP, Azure), each CockroachDB node must run as a single, dedicated cockroach start process on its own physical or virtual machine (VM). The benchmark rates this recommendation Manual; the automated check covers its objective pass criterion. Passes when exactly one cockroach start process runs on this host (FAIL when none runs). Also confirm the store directory is not shared with another node.

How it is checked

Audit method: Shell command

shell
out=$(ps -eo args= | grep '[c]ockroach start') || exit 1; printf '%s\n' "$out" | awk 'END {print (NR == 1) ? "compliant" : NR " processes"}'
Expected output
compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Stop the extra cockroach start processes (systemctl stop ...), provision a dedicated VM/host with its own storage for each additional node and redeploy it there.

Properties

Operating systems
Any
Tags
cockroachdbarchitecture
Reference
CIS CockroachDB v25.x Benchmark v1.0.0 - 2.2 Ensure Each CockroachDB Node Runs as a Dedicated Process on a Separate Host

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

shell
tmaegis scan --target cockroachdb