getInstances

package generated_program;
import com.pulumi.Context;
import com.pulumi.Pulumi;
import com.pulumi.core.Output;
import com.pulumi.alicloud.AlicloudFunctions;
import com.pulumi.alicloud.inputs.GetZonesArgs;
import com.pulumi.alicloud.vpc.Network;
import com.pulumi.alicloud.vpc.NetworkArgs;
import com.pulumi.alicloud.vpc.Switch;
import com.pulumi.alicloud.vpc.SwitchArgs;
import com.pulumi.alicloud.alikafka.Instance;
import com.pulumi.alicloud.alikafka.InstanceArgs;
import com.pulumi.alicloud.actiontrail.ActiontrailFunctions;
import com.pulumi.alicloud.actiontrail.inputs.GetInstancesArgs;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;
public class App {
    public static void main(String[] args) {
        Pulumi.run(App::stack);
    }
    public static void stack(Context ctx) {
        final var config = ctx.config();
        final var instanceName = config.get("instanceName").orElse("alikafkaInstanceName");
        final var defaultZones = AlicloudFunctions.getZones(GetZonesArgs.builder()
            .availableResourceCreation("VSwitch")
            .build());
        var defaultNetwork = new Network("defaultNetwork", NetworkArgs.builder()
            .cidrBlock("172.16.0.0/12")
            .build());
        var defaultSwitch = new Switch("defaultSwitch", SwitchArgs.builder()
            .vpcId(defaultNetwork.id())
            .cidrBlock("172.16.0.0/24")
            .zoneId(defaultZones.applyValue(getZonesResult -> getZonesResult.zones()[0].id()))
            .build());
        var defaultInstance = new Instance("defaultInstance", InstanceArgs.builder()
            .partitionNum("50")
            .diskType("1")
            .diskSize("500")
            .deployType("4")
            .ioMax("20")
            .vswitchId(defaultSwitch.id())
            .build());
        final var instancesDs = ActiontrailFunctions.getInstances(GetInstancesArgs.builder()
            .nameRegex("alikafkaInstanceName")
            .outputFile("instances.txt")
            .build());
        ctx.export("firstInstanceName", instancesDs.applyValue(getInstancesResult -> getInstancesResult.instances()[0].name()));
    }
}