Example usage for com.amazonaws.services.autoscaling.model AutoScalingGroup getTargetGroupARNs

Introduction

In this page you can find the example usage for com.amazonaws.services.autoscaling.model AutoScalingGroup getTargetGroupARNs.

Prototype

public java.util.List<String> getTargetGroupARNs() 

Source Link

Document

The Amazon Resource Names (ARN) of the target groups for your load balancer.

Usage

From source file:com.netflix.spinnaker.clouddriver.aws.event.DefaultAfterResizeEventHandler.java

License:Apache License

/**
 * There is an opportunity to expedite a resize to zero by explicitly terminating instances
 * (server group _must not_ be attached to a load balancer nor have any life cycle hooks)
 */// www  . j  av  a2  s . c o  m
@Override
public void handle(AfterResizeEvent event) {
    AutoScalingGroup autoScalingGroup = event.getAutoScalingGroup();

    if (event.getCapacity() == null || event.getCapacity().getDesired() == null) {
        return;
    }

    if (event.getCapacity().getDesired() > 0) {
        return;
    }

    if (!autoScalingGroup.getLoadBalancerNames().isEmpty()
            || !autoScalingGroup.getTargetGroupARNs().isEmpty()) {
        event.getTask().updateStatus(PHASE,
                "Skipping explicit instance termination, server group is attached to one or more load balancers");
        return;
    }

    try {
        List<LifecycleHook> existingLifecycleHooks = fetchTerminatingLifecycleHooks(
                event.getAmazonAutoScaling(), autoScalingGroup.getAutoScalingGroupName());
        if (!existingLifecycleHooks.isEmpty()) {
            event.getTask().updateStatus(PHASE,
                    "Skipping explicit instance termination, server group has one or more lifecycle hooks");
            return;
        }
    } catch (Exception e) {
        log.error("Unable to fetch lifecycle hooks (serverGroupName: {}, arn: {})",
                autoScalingGroup.getAutoScalingGroupName(), autoScalingGroup.getAutoScalingGroupARN(), e);

        event.getTask().updateStatus(PHASE, String.format(
                "Skipping explicit instance termination, unable to fetch lifecycle hooks (reason: '%s')",
                e.getMessage()));
        return;
    }

    terminateInstancesInAutoScalingGroup(event.getTask(), event.getAmazonEC2(), event.getAutoScalingGroup());
}

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