ChirpStack FUOTA Server

ChirpStack FUOTA Server is an open-source FUOTA server implementation for LoRaWAN. It integrates with the ChirpStack Application Server using the HTTP integration (for receiving uplink payloads) and uses the ChirpStack Application Server API for creating the multicast-groups and enqueueing the downlink payloads.

Building from source

The following commands explain how to compile the source-code using the provided Docker Compose development environment.

To start a bash shell within this environment:

docker-compose run --rm chirpstack-fuota-server bash

# cleanup workspace
make clean

# run the tests
make test

# compile (this will also compile the ui and generate the static files)
make build

# compile snapshot builds for supported architectures (this will also compile the ui and generate the static files)
make snapshot

API interface

The ChirpStack FUOTA Server provides a gRPC API interface for scheduling the FUOTA deployments to one or multiple devices under a ChirpStack Application Server application ID. This API is defined by the gRPC FUOTAServerService.

Setup

After installing the ChirpStack FUOTA Server, there are a couple of steps to take to setup. Example commands:

Database setup

The ChirpStack FUOTA Server stores the deployment results into a PostgreSQL database. You must enable the hstore extension for this database.

sudo -u postgres psql

-- set up the user and password
-- (note that it is important to use single quotes and a semicolon at the end!)
create role chirpstack_fuota with login password 'dbpassword';

-- create the database
create database chirpstack_fuota with owner chirpstack_fuota;

-- change to the ChirpStack FUOTA Server database
\c chirpstack_fuota

-- enable the hstore extension
create extension hstore;

-- exit psql
\q

Create API key

The ChirpStack FUOTA Server needs a ChirpStack Application Server API in order authenticate with the ChirpStack Application Server. You can generate this key within the ChirpStack Application Server web-interface. This key must be configured in the chirpstack-fuota-server.toml configuration file.

HTTP integration

Within the ChirpStack Application Server, you must also setup a HTTP integration for the application(s) you want to use with the ChirpStack FUOTA Server. Make sure that this matches with the host / IP and port the ChirpStack FUOTA Server event handler is binding to. As well make sure that the marshaler matches.

Usage and configuration file

Please refer to the CLI interface for usage information and for the command to generate a configuration file:

ChirpStack FUOTA Server

Usage:
  chirpstack-fuota-server [flags]
  chirpstack-fuota-server [command]

Available Commands:
  configfile  Print the ChirpStack FUOTA Server configuration file
  help        Help about any command
  version     Print the ChirpStack FUOTA Server version

Flags:
  -c, --config string   path to configuration file (optional)
  -h, --help            help for chirpstack-fuota-server
      --log-level int   debug=5, info=4, error=2, fatal=1, panic=0 (default 4)

Use "chirpstack-fuota-server [command] --help" for more information about a command.

Resources

For a better understanding of FUOTA, please refer to the following documents that can be found at the LoRa Alliance Resource Hub:

• Remote Multicast Setup
• Fragmented Data Block Transport

License

ChirpStack FUOTA Server is distributed under the MIT license. See also LICENSE.