Continuwuity on Ubuntu 24.04 LTS by cloudimg

Continuwuity on Ubuntu 24.04 LTS by cloudimg

Continuwuity is a lightweight Matrix homeserver written in Rust - the actively maintained community successor to conduwuit and Conduit. Matrix is an open standard for secure, decentralised real-time communication, and a homeserver is the piece you run: it stores your users, rooms and messages and speaks the Matrix client-server API that apps such as Element connect to. Continuwuity's design goal is that one process should be enough: a single binary plus an embedded RocksDB store, with no external PostgreSQL, no Redis and no separate application stack.

This cloudimg image assembles that into a ready-to-run appliance. nginx terminates TLS on port 443 and reverse-proxies the client-server API to the homeserver, which binds to loopback only. The official upstream v26.7.2 static release binary is redistributed unmodified and pinned by SHA-256, with its provenance recorded on the image.

Secure by default. An open Matrix homeserver is a spam and abuse vector, so this image never ships one. Registration is closed behind a per-VM registration token, and exactly one admin account is created on first boot with a unique, generated password - there is no default login. The homeserver ed25519 signing key (stored inside RocksDB), the admin password, the registration token and the nginx TLS certificate are all generated uniquely on first boot, so nothing is shared between deployments. A one-command self-test proves the client-server API round-trips: the API answers, an unauthenticated registration is refused, and the per-VM admin can log in and create a room.

What is included:

• Continuwuity v26.7.2 (official upstream static release binary, SHA-256 pinned, redistributed unmodified)
• nginx terminating TLS on 443 with a per-VM self-signed certificate generated at first boot
• A single admin account and a registration token, both generated per VM on first boot - no default login
• A per-VM homeserver signing key generated inside RocksDB - never baked into the image
• Ubuntu 24.04 LTS, fully patched at build time, with unattended security updates left enabled
• 24/7 cloudimg support

cloudimg is not affiliated with or endorsed by the Continuwuity project. Continuwuity is redistributed unmodified under the Apache-2.0 licence; cloudimg adds packaging, an nginx TLS reverse proxy, hardened configuration and first-boot automation.