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Use websockets¶

This topic describes how to use websockets with Interlock.

Create an overlay network to isolate and secure service traffic:
```
docker network create -d overlay demo
```
Example output:
```
1se1glh749q1i4pw0kf26mfx5
```

Create the service with websocket endpoints:

docker service create \
--name demo \
--network demo \
--detach=false \
--label com.docker.lb.hosts=demo.local \
--label com.docker.lb.port=8080 \
--label com.docker.lb.websocket_endpoints=/ws \
ehazlett/websocket-chat

Interlock detects when the service is available and publishes it.

Note

You must have an entry for demo.local in your /etc/hosts file or use a routable domain.

Once tasks are running and the proxy service is updated, the application will be available at http://demo.local. Navigate to this URL in two different browser windows and notice that the text you enter in one window displays automatically in the other.