nats.docs/nats-server/nats_docker/ngs-docker-python.md

Python and NGS Running in Docker

Start a lightweight Docker container:

docker run --entrypoint /bin/bash -it python:3.8-slim-buster

Or you can also mount local creds via a volume:

docker run --entrypoint /bin/bash -v $HOME/.nkeys/creds/synadia/NGS/:/creds -it python:3.8-slim-buster

Install nats.py and dependencies to install nkeys:

apt-get update && apt-get install -y build-essential curl
pip install asyncio-nats-client[nkeys]

Get the Python examples using curl:

curl -o nats-pub.py -O -L https://raw.githubusercontent.com/nats-io/nats.py/master/examples/nats-pub/__main__.py
curl -o nats-sub.py -O -L https://raw.githubusercontent.com/nats-io/nats.py/master/examples/nats-sub/__main__.py

Create a subscription that lingers:

python nats-sub.py --creds /creds/NGS.creds  -s tls://connect.ngs.global:4222 hello &

Publish a message:

python nats-pub.py --creds /creds/NGS.creds  -s tls://connect.ngs.global:4222 hello -d world