Base
Hardened build
minimal ports, security patches applied at build time
Signal K Server on Ubuntu 24.04 LTS
Azure
Applications
Signal K Server is the open marine data server: it takes the NMEA 0183 and NMEA 2000 feeds a vessel already produces, normalises them into one modern data model and serves them over a web API, a live stream and a browser admin console.
Overview
Signal K Server is the open source hub for marine instrument data. It listens to the feeds a boat already produces, NMEA 0183 over the network or a serial link, NMEA 2000 from the bus, and Signal K from other servers, and converts every sentence into the Signal K data model, a single consistent JSON representation of position, heading, depth, wind, engine and tank readings expressed in SI units. Applications then read that model through a REST API or subscribe to a live WebSocket stream instead of parsing raw instrument sentences themselves.
A browser admin console gives you a dashboard of server health and connections, a data browser for inspecting live values path by path, a connection manager for adding new inputs, and an appstore of plugins and webapps that extend the server with charting, logging, anchor alarms and third party integrations. It suits boat owners, marine electronics installers and fleet operators who want one open place to collect, view and share vessel data.
Why the cloudimg image
cloudimg delivers Signal K Server ready to receive data, with a NMEA 0183 listener already enabled on the standard UDP port so a vessel gateway can be pointed at the instance straight after first boot. The image is secure by default, which matters especially here: the upstream server ships with no security configuration at all and stays open to anyone until somebody creates the first account by hand, and this image cannot start in that state. Every instance generates its own administrator password and its own token signing key on first boot, and the server is held back by the init system until that configuration exists and has been verified, so an unsecured server and a shared default credential are both impossible. The configuration directory, including installed plugins and recorded data logs, sits on a dedicated data volume that is independently resizable, the base is fully patched with unattended security upgrades enabled, and every deployment is paired with a step by step deploy guide, backed by 24/7 cloudimg support.
Common uses
- Collect NMEA 0183 and NMEA 2000 instrument data into one open data model
- Serve live vessel data to apps over a REST API and a WebSocket stream
- Extend the server with charting, logging and alarm plugins from the appstore
See it running
Real screenshots taken while testing this image against its deployment guide.
More in Applications
Oe
Oracle E-Business Suite 12.2.12 Vision ERP Demo
Applications
Oracle E Business Suite 12.2.12 Vision demo, a fully seeded ERP environment ready to evaluate in minutes.
Actual Budget on Ubuntu 24.04 LTS
Applications
Actual Budget is a free, open source, local first personal finance application built around the proven envelope budgetin...
Admidio 5 Membership Management on Ubuntu 24.04 LTS
Applications
Admidio is the open source membership management platform for clubs, associations and non profit organisations.
AdventureLog on Ubuntu 24.04 LTS
Applications
AdventureLog is a self-hosted travel companion. It lets you log the countries and regions you have visited, plan future ...
Ai
Aim on Ubuntu 24.04
Applications
Aim is an open-source ML experiment tracker: your training code logs metrics, hyperparameters and other artifacts as it ...
AirTrail on Ubuntu 24.04 LTS
Applications
The cloudimg image ships the free and open source, GPL-3.0 licensed AirTrail application, run the officially supported w...