This mini-tutorial shows how to run a NATS server with JetStream enabled in a local Docker container. This enables quick and consequence-free experimentation with the many features of JetStream.
Using the official nats image, start a server. The -js option is passed to the server to enable JetStream. The -p option forwards your local 4222 port to the server inside the container, 4222 is the default client connection port.
docker run -p 4222:4222 nats -js
To persist JetStream data to a volume, you can use the -v option in combination with -sd:
docker run -p 4222:4222 -v nats:/data nats -js -sd /data
With the server running, use nats bench to create a stream and publish some messages to it.
