drbd-reactor

Infra

Updated 4 days ago

DRBD-Reactor Overview

Secure your stack with a hardened DRBD Reactor image freshly-built by Minimus. Minimus images always include the most up-to-date package version for all packages and dependencies contained in the image.

DRBD Reactor is a daemon that monitors DRBD replication events and reacts to them through configurable plugins. Its promoter plugin automatically promotes and demotes resources to drive failover, making it possible to build highly available services without a full cluster manager like Pacemaker, while its monitoring plugins expose DRBD metrics and events for observability.

Try It Out

For a quick test, print the help menu:

docker run --rm reg.mini.dev/drbd-reactor --help

Watch DRBD Events with the Debugger Plugin

Create a minimal configuration that enables the debugger plugin, which logs DRBD events to stderr and needs no promoter or existing DRBD resource to load:

cat > reactor.toml <<'EOF'
[[log]]
level = "debug"

[[debugger]]
EOF

Run the daemon against this config. The --allow-tty flag is required since drbd-reactor otherwise refuses to start outside of a service manager:

docker run --rm -v "$(pwd)/reactor.toml:/etc/drbd-reactor.toml" reg.mini.dev/drbd-reactor --allow-tty

The daemon loads the config and starts watching for DRBD events; the debugger plugin logs each one to stderr as it occurs.

Technical Considerations

The DRBD-Reactor image provided by Minimus is a slim, security-hardened alternative to the public image. The images are largely interchangeable, with a few differences as noted below.

DRBD-Reactor built by Minimus:

Runs as a non-root user by default for a security-first approach that protects against privilege escalation attacks.
Drill down on the version specification tab to see the default user, listening ports, entrypoint, volumes, environment variables, etc.

The Payoff

A hardened, minimal image that will remain more secure for the long run and accrue vulnerabilities at a slower rate.

See the risk reduction dashboard for a detailed CVE comparison over the past 30 days.
Review the compliance report to see the default hardening and security configurations for the image.

Terms & Info

Trademark

This catalog is published by Minimus. All product names, logos, and marks, other than those belonging to Minimus, shown are owned by their respective rights holders and appear here only to identify the open source software each image contains. Minimus claims no ownership of those marks and implies no affiliation with, endorsement by, certification by, or sponsorship by any rights holder.

Disclaimer

Images are provided "as-is" without warranty of any kind. "Hardened" refers to the security configuration applied at the time of build and does not constitute a guarantee of ongoing security or absence of vulnerabilities. The free tier is provided without support, SLA, or guaranteed patching timelines. Security updates may be applied to paid subscriptions before or instead of free tier images. By pulling or using any image you agree to our Terms of Use.