foo.java

//DEPS org.apache.camel:camel-kubernetes

// camel-k: language=java

import io.fabric8.kubernetes.api.model.EnvVar;
import org.apache.camel.builder.RouteBuilder;

public class foo extends RouteBuilder {

    @Override
    public void configure() throws Exception {

        // Write your routes here, for example:
        from("timer:java?period={{time:1000}}")
            .process(e -> {
                 EnvVar ev = new io.fabric8.kubernetes.api.model.EnvVarBuilder()
                .withName("BUILD_LOGLEVEL")
                .withValue("2")
                .build();
                e.getMessage().setBody(ev);
            })
            .log("${body}");
    }
}