public String getPrometheusHttpUrl() {
        return "http://" + getHost() + ":" + getMappedPort(PROMETHEUS_PORT);
    }
Testcontainers implementation for Grafana OTel LGTM.
<p>
Supported image: {@code grafana/otel-lgtm}
<p>
Exposed ports:
<ul>
    <li>Grafana: 3000</li>
    <li>Tempo: 3200</li>
    <li>OTel Http: 4317</li>
    <li>OTel Grpc: 4318</li>
    <li>Prometheus: 9090</li>
</ul>
modules/grafana/src/main/java/org/testcontainers/grafana/LgtmStackContainer.java