Unleash on Ubuntu 24.04 LTS by cloudimg

Unleash is a leading open source feature flag and feature management platform. From an ordinary browser your team can create feature flags, run gradual rollouts and A/B tests, target and segment users, flip kill switches, manage flags across environments, and connect SDKs for every language. This image is built and maintained by cloudimg on a hardened, fully patched Ubuntu 24.04 LTS base, running the open source Unleash server 8.0.3 on Node.js 22 LTS behind nginx, with a bundled local PostgreSQL 16 backend, so the appliance is complete and useful on its own.

A unique administrator password is generated on the first boot of every VM and written to a root only file, and the well known default password (admin / unleash4all) is rotated away and rejected before the image ships. Sign in to the Unleash web console on port 80, then create flags, projects, environments, rollout strategies and API tokens, and wire up the SDKs. A ready to use default project with example feature flags is included so you can explore straight away.

The Unleash server is bound to the loopback interface (127.0.0.1:4242) and PostgreSQL to 127.0.0.1:5432; neither is exposed to the network. The entire datastore lives on a dedicated managed data disk mounted at /var/lib/postgresql. An unauthenticated /healthz endpoint is provided for load balancer probes. For production, front port 80 with your own domain and TLS.

This image ships the open source Unleash server, licensed under the GNU Affero General Public License v3.0 (AGPL-3.0), not Unleash Enterprise. cloudimg is not affiliated with or endorsed by the Unleash project or Bricks Software AS. Backed by 24/7 cloudimg support.