Docker¶

The repository includes a multi-stage Dockerfile and a docker-compose.yml for running the library, examples, and tests in a self-contained environment.

Build the image¶

docker build -t doppler .

The image contains:

libdoppler.so installed to /usr/local/lib
C example binaries in /app/
Test binaries (test_*) in /app/

Run the tests¶

docker run --rm doppler sh -c 'for t in /app/test_*; do "$t" || exit 1; done'

Docker Compose — full streaming demo¶

docker-compose.yml wires up a transmitter, two receivers, and a spectrum analyzer (plus a one-shot tests service under the test profile):

docker compose up

Foreground process

docker compose up runs in the foreground and streams all service logs to the terminal. Use docker compose up -d to detach, then docker compose logs -f to follow logs separately.

docker compose down

Services:

Service	Description
`transmitter`	Generates and publishes IQ samples over ZMQ PUB (port 5555)
`receiver-1`	Subscribes and prints signal stats
`receiver-2`	Second subscriber (demonstrates PUB/SUB fan-out)