Examples with DeregisterTargetsResult com.amazonaws.services.elasticloadbalancingv2.model.DeregisterTargetsResult used on opensource projects

Example 1 with DeregisterTargetsResult

use of com.amazonaws.services.elasticloadbalancingv2.model.DeregisterTargetsResult in project cloudbreak by hortonworks.

the class CloudFormationStackUtil method removeLoadBalancerTargets.

public void removeLoadBalancerTargets(AuthenticatedContext ac, CloudLoadBalancer loadBalancer, List<CloudResource> resourcesToRemove) {
    String region = ac.getCloudContext().getLocation().getRegion().value();
    AmazonElasticLoadBalancingClient amazonElbClient = awsClient.createElasticLoadBalancingClient(new AwsCredentialView(ac.getCloudCredential()), region);
    for (Map.Entry<TargetGroupPortPair, Set<Group>> entry : loadBalancer.getPortToTargetGroupMapping().entrySet()) {
        // Get a list of the instance ids to remove
        Set<String> instancesToRemove = getInstanceIdsForGroups(resourcesToRemove, entry.getValue());
        // Find target group ARN
        AwsLoadBalancerScheme scheme = loadBalancerTypeConverter.convert(loadBalancer.getType());
        String targetGroupArn = getResourceArnByLogicalId(ac, AwsTargetGroup.getTargetGroupName(entry.getKey().getTrafficPort(), scheme), region);
        // Deregister any instances that no longer exist
        if (!instancesToRemove.isEmpty()) {
            try {
                List<TargetDescription> targetsToRemove = instancesToRemove.stream().map(instanceId -> new TargetDescription().withId(instanceId)).collect(Collectors.toList());
                DeregisterTargetsResult deregisterTargetsResult = amazonElbClient.deregisterTargets(new DeregisterTargetsRequest().withTargetGroupArn(targetGroupArn).withTargets(targetsToRemove));
            } catch (InvalidTargetException ignored) {
            // no-op - we tried to remove a target that wasn't in the target group, which is fine
            }
        }
    }
}