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embedded-nats

Maven dependency

pom.xml
<dependency>
    <groupId>com.playtika.testcontainers</groupId>
    <artifactId>embedded-nats</artifactId>
    <scope>test</scope>
</dependency>

Consumes (via bootstrap.properties)

  • embedded.nats.enabled (true|false, default is true)

  • embedded.nats.reuseContainer (true|false, default is false)

  • embedded.nats.dockerImage (default is 'nats:2.9')

  • embedded.toxiproxy.proxies.nats.enabled Enables both creation of the container with ToxiProxy TCP proxy and a proxy to the embedded-nats container.

Produces

  • embedded.nats.host

  • embedded.nats.port

  • embedded.nats.httpMonitorPort

  • embedded.nats.routeConnectionsPort

  • embedded.nats.toxiproxy.host

  • embedded.nats.toxiproxy.port

  • embedded.nats.networkAlias

  • embedded.nats.internalClientPort

  • embedded.nats.internalHttpMonitorPort

  • embedded.nats.internalRouteConnectionsPort

  • Bean ToxiproxyContainer.ContainerProxy natsContainerProxy

Notes

Nats container has no security enabled, you can use any credentials.

Create client with ToxiProxy

You can also create client pointed at ToxiProxy TCP proxy:

  1. Provide properties:

    src/test/resources/bootstrap.properties
    embedded.toxiproxy.proxies.nats.enabled=true
To manipulate ToxiProxy inject the following bean into your tests:
@Autowired
ToxiproxyContainer.ContainerProxy natsContainerProxy;

Create Nats client

@Bean(destroyMethod = "close")
public Connection natsConnection(@Value("${embedded.nats.host}") String host,
                                 @Value("${embedded.nats.port}") int port) {
    Options options = new Options.Builder()
            .server(String.format("nats://%s:%s", host, port))
            .build();
    return Nats.connect(options);
}