Example usage for com.amazonaws.services.autoscaling.model DetachInstancesRequest DetachInstancesRequest

Introduction

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

Prototype

DetachInstancesRequest

Source Link

Usage

From source file:com.pinterest.arcee.autoscaling.AwsAutoScaleGroupManager.java

License:Apache License

@Override
public void deleteAutoScalingGroup(String groupName, boolean detachInstances) throws Exception {
    // step 1: get the auto scaling instances information
    if (detachInstances) {
        DescribeAutoScalingGroupsRequest request = new DescribeAutoScalingGroupsRequest();
        request.setAutoScalingGroupNames(Arrays.asList(groupName));
        DescribeAutoScalingGroupsResult result = aasClient.describeAutoScalingGroups(request);
        List<AutoScalingGroup> groups = result.getAutoScalingGroups();
        if (groups.isEmpty()) {
            return;
        }//from w  w w .ja v a 2  s  .c  om
        AutoScalingGroup group = groups.get(0);

        List<Instance> instances = group.getInstances();
        List<String> ids = new LinkedList<>();
        for (Instance instance : instances) {
            ids.add(instance.getInstanceId());
        }

        // step 2: update the autoscaling min size to 0
        UpdateAutoScalingGroupRequest updateAutoScalingGroupRequest = new UpdateAutoScalingGroupRequest();
        updateAutoScalingGroupRequest.setAutoScalingGroupName(groupName);
        updateAutoScalingGroupRequest.setMinSize(0);
        aasClient.updateAutoScalingGroup(updateAutoScalingGroupRequest);

        // step 3: detach instances from auto scaling group
        if (!ids.isEmpty()) {
            for (int i = 0; i < ids.size(); i += MAX_DETACH_INSTANCE_LENGTH) {
                DetachInstancesRequest detachInstancesRequest = new DetachInstancesRequest();
                detachInstancesRequest.setAutoScalingGroupName(groupName);
                detachInstancesRequest.setShouldDecrementDesiredCapacity(true);
                detachInstancesRequest
                        .setInstanceIds(ids.subList(i, Math.min(i + MAX_DETACH_INSTANCE_LENGTH, ids.size())));
                aasClient.detachInstances(detachInstancesRequest);
            }
        }
    }

    // step 4 delete auto scaling group
    DeleteAutoScalingGroupRequest deleteAutoScalingGroupRequest = new DeleteAutoScalingGroupRequest();
    deleteAutoScalingGroupRequest.setAutoScalingGroupName(groupName);
    deleteAutoScalingGroupRequest.setForceDelete(true);
    aasClient.deleteAutoScalingGroup(deleteAutoScalingGroupRequest);
}

---

From source file:com.pinterest.arcee.autoscaling.AwsAutoScaleGroupManager.java

License:Apache License

@Override
public void detachInstancesFromAutoScalingGroup(Collection<String> instances, String groupName,
        boolean decreaseSize) throws Exception {
    DescribeAutoScalingGroupsRequest request = new DescribeAutoScalingGroupsRequest();
    request.setAutoScalingGroupNames(Arrays.asList(groupName));
    DescribeAutoScalingGroupsResult result = aasClient.describeAutoScalingGroups(request);
    List<AutoScalingGroup> groups = result.getAutoScalingGroups();
    if (groups.isEmpty()) {
        return;//from w  w  w . ja  v  a  2s .co  m
    }

    AutoScalingGroup group = groups.get(0);
    int curCapacity = group.getDesiredCapacity();
    int minSize = group.getMinSize();
    if (decreaseSize && (curCapacity == minSize)) {
        UpdateAutoScalingGroupRequest updateRequest = new UpdateAutoScalingGroupRequest();
        updateRequest.setAutoScalingGroupName(groupName);
        updateRequest.setMinSize(minSize - 1);
        aasClient.updateAutoScalingGroup(updateRequest);
    }

    DetachInstancesRequest detachInstancesRequest = new DetachInstancesRequest();
    detachInstancesRequest.withAutoScalingGroupName(groupName).setInstanceIds(instances);
    detachInstancesRequest.setShouldDecrementDesiredCapacity(decreaseSize);
    aasClient.detachInstances(detachInstancesRequest);
}

---

From source file:com.pinterest.arcee.autoscaling.AwsAutoScalingManager.java

License:Apache License

@Override
public void deleteAutoScalingGroup(String groupName, boolean detachInstances) throws Exception {
    // step 1: get the auto scaling instances information
    if (detachInstances) {
        DescribeAutoScalingGroupsRequest request = new DescribeAutoScalingGroupsRequest();
        request.setAutoScalingGroupNames(Arrays.asList(groupName));
        DescribeAutoScalingGroupsResult result = aasClient.describeAutoScalingGroups(request);
        List<AutoScalingGroup> groups = result.getAutoScalingGroups();
        if (groups.isEmpty()) {
            return;
        }//from   ww w .j  av  a 2  s . c o  m
        AutoScalingGroup group = groups.get(0);
        List<Instance> instances = group.getInstances();
        List<String> ids = new ArrayList<>();
        for (Instance instance : instances) {
            ids.add(instance.getInstanceId());
        }

        // step 2: update the autoscaling min size to 0
        UpdateAutoScalingGroupRequest updateAutoScalingGroupRequest = new UpdateAutoScalingGroupRequest();
        updateAutoScalingGroupRequest.setAutoScalingGroupName(groupName);
        updateAutoScalingGroupRequest.setMinSize(0);
        aasClient.updateAutoScalingGroup(updateAutoScalingGroupRequest);

        // step 3: detach instances from auto scaling group
        if (!ids.isEmpty()) {
            for (int i = 0; i < ids.size(); i += MAX_DETACH_INSTANCE_LENGTH) {
                DetachInstancesRequest detachInstancesRequest = new DetachInstancesRequest();
                detachInstancesRequest.setAutoScalingGroupName(groupName);
                detachInstancesRequest.setShouldDecrementDesiredCapacity(true);
                detachInstancesRequest
                        .setInstanceIds(ids.subList(i, Math.min(i + MAX_DETACH_INSTANCE_LENGTH, ids.size())));
                aasClient.detachInstances(detachInstancesRequest);
            }
        }
    }

    // step 4 delete auto scaling group
    DeleteAutoScalingGroupRequest deleteAutoScalingGroupRequest = new DeleteAutoScalingGroupRequest();
    deleteAutoScalingGroupRequest.setAutoScalingGroupName(groupName);
    deleteAutoScalingGroupRequest.setForceDelete(true);
    aasClient.deleteAutoScalingGroup(deleteAutoScalingGroupRequest);
}

---

From source file:com.pinterest.arcee.autoscaling.AwsAutoScalingManager.java

License:Apache License

@Override
public void detachInstancesFromAutoScalingGroup(Collection<String> instances, String groupName,
        boolean decreaseSize) throws Exception {
    DescribeAutoScalingGroupsRequest request = new DescribeAutoScalingGroupsRequest();
    request.setAutoScalingGroupNames(Collections.singletonList(groupName));
    DescribeAutoScalingGroupsResult result = aasClient.describeAutoScalingGroups(request);
    List<AutoScalingGroup> groups = result.getAutoScalingGroups();
    if (groups.isEmpty()) {
        return;/*from   www. j a  v  a2 s .  c  o m*/
    }

    AutoScalingGroup group = groups.get(0);
    int curCapacity = group.getDesiredCapacity();
    int minSize = group.getMinSize();
    if (decreaseSize && (curCapacity == minSize)) {
        UpdateAutoScalingGroupRequest updateRequest = new UpdateAutoScalingGroupRequest();
        updateRequest.setAutoScalingGroupName(groupName);
        updateRequest.setMinSize(minSize - 1);
        aasClient.updateAutoScalingGroup(updateRequest);
    }

    DetachInstancesRequest detachInstancesRequest = new DetachInstancesRequest();
    detachInstancesRequest.withAutoScalingGroupName(groupName).setInstanceIds(instances);
    detachInstancesRequest.setShouldDecrementDesiredCapacity(decreaseSize);
    aasClient.detachInstances(detachInstancesRequest);
}

---

From source file:dsmwatcher.DSMWatcher.java

License:Open Source License

public void handleAutoScaledInstance(Instance instance) throws Exception {
    AmazonAutoScalingClient as = new AmazonAutoScalingClient().withRegion(region);
    DescribeAutoScalingInstancesResult describeResult = as.describeAutoScalingInstances(
            new DescribeAutoScalingInstancesRequest().withInstanceIds(instance.getInstanceId()));
    if (describeResult.getAutoScalingInstances().size() == 0) {
        return;/*  www.  jav a2  s.c  om*/
    }
    AutoScalingInstanceDetails instanceDetails = describeResult.getAutoScalingInstances().get(0);
    DetachInstancesRequest detachRequest = new DetachInstancesRequest()
            .withInstanceIds(instanceDetails.getInstanceId())
            .withAutoScalingGroupName(instanceDetails.getAutoScalingGroupName())
            .withShouldDecrementDesiredCapacity(false);
    as.detachInstances(detachRequest);
}

---

From source file:web.component.impl.aws.AWSAutoScalingImpl.java

@Override
public void detachInstances(String autoScalingGroupName, List<String> instanceIds,
        boolean shouldDecrementDesiredCapacity) {

    detachInstances(new DetachInstancesRequest().withAutoScalingGroupName(autoScalingGroupName)
            .withInstanceIds(instanceIds).withShouldDecrementDesiredCapacity(shouldDecrementDesiredCapacity));
}

---

From source file:web.component.impl.aws.AWSAutoScalingImpl.java

@Override
public void detachInstances(String autoScalingGroupName, List<String> instanceIds) {

    detachInstances(new DetachInstancesRequest().withAutoScalingGroupName(autoScalingGroupName)
            .withInstanceIds(instanceIds).withShouldDecrementDesiredCapacity(false));
}

---

From source file:web.component.impl.aws.AWSAutoScalingImpl.java

@Override
public void detachInstancesDecreasingDesiredCapacity(String autoScalingGroupName, List<String> instanceIds) {

    detachInstances(new DetachInstancesRequest().withAutoScalingGroupName(autoScalingGroupName)
            .withInstanceIds(instanceIds).withShouldDecrementDesiredCapacity(true));
}

---