Example usage for com.amazonaws.services.ec2.model InstanceBlockDeviceMappingSpecification InstanceBlockDeviceMappingSpecification

Introduction

In this page you can find the example usage for com.amazonaws.services.ec2.model InstanceBlockDeviceMappingSpecification InstanceBlockDeviceMappingSpecification.

Prototype

InstanceBlockDeviceMappingSpecification

Source Link

Usage

From source file:com.cloudera.director.aws.ec2.ebs.EBSAllocator.java

License:Apache License

/**
 * Adds a delete on termination flag to all volumes in an {@code InstanceEbsVolumes} list
 * that have the ATTACHED status. This makes sure that the volumes associated with the
 * instance will be automatically cleaned up upon instance termination.
 *
 * @param instanceEbsVolumesList list of instances along with their associated volumes
 *//*from w  w w  .j  ava 2 s.  c o  m*/
public void addDeleteOnTerminationFlag(List<InstanceEbsVolumes> instanceEbsVolumesList) {
    Set<String> volumesToFlag = getAllVolumeIdsWithStatus(instanceEbsVolumesList,
            InstanceEbsVolumes.Status.ATTACHED);

    if (!volumesToFlag.isEmpty()) {
        for (InstanceEbsVolumes instanceEbsVolumes : instanceEbsVolumesList) {
            String ec2InstanceId = instanceEbsVolumes.getEc2InstanceId();

            DescribeInstanceAttributeRequest instanceAttributeRequest = new DescribeInstanceAttributeRequest()
                    .withAttribute(InstanceAttributeName.BlockDeviceMapping).withInstanceId(ec2InstanceId);

            List<InstanceBlockDeviceMapping> blockDeviceMappings = client
                    .describeInstanceAttribute(instanceAttributeRequest).getInstanceAttribute()
                    .getBlockDeviceMappings();

            for (InstanceBlockDeviceMapping blockDeviceMapping : blockDeviceMappings) {
                String volumeId = blockDeviceMapping.getEbs().getVolumeId();

                // The block device mapping may have volumes associated with it that were not
                // provisioned by us. We skip marking those volumes for deletion.

                if (!volumesToFlag.contains(volumeId)) {
                    continue;
                }

                InstanceBlockDeviceMappingSpecification updatedSpec = new InstanceBlockDeviceMappingSpecification()
                        .withEbs(new EbsInstanceBlockDeviceSpecification().withDeleteOnTermination(true)
                                .withVolumeId(volumeId))
                        .withDeviceName(blockDeviceMapping.getDeviceName());

                ModifyInstanceAttributeRequest modifyRequest = new ModifyInstanceAttributeRequest()
                        .withBlockDeviceMappings(updatedSpec).withInstanceId(ec2InstanceId);

                client.modifyInstanceAttribute(modifyRequest);
            }
        }
    }
}

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From source file:net.roboconf.target.ec2.internal.Ec2MachineConfigurator.java

License:Apache License

/**
 * Attaches volume(s) for EBS./*w w w  . j  a  va  2 s  .  co m*/
 * @return true if successful attachment, or nothing to do. false otherwise
 */
private boolean attachVolumes() {

    // If volume is found in map, it has been successfully created (no need to check here)
    for (Map.Entry<String, String> entry : this.storageIdToVolumeId.entrySet()) {

        String volumeId = entry.getValue();
        String storageId = entry.getKey();

        // Give a name to the volume before attaching
        String nameTemplate = Ec2IaasHandler.findStorageProperty(this.targetProperties, storageId,
                VOLUME_NAME_PREFIX);
        String name = Ec2IaasHandler.expandVolumeName(nameTemplate, this.applicationName,
                this.scopedInstance.getName());
        if (Utils.isEmptyOrWhitespaces(name))
            name = "Created by Roboconf for " + this.tagName;
        tagResource(volumeId, name);

        // Attach volume now
        String mountPoint = Ec2IaasHandler.findStorageProperty(this.targetProperties, storageId,
                VOLUME_MOUNT_POINT_PREFIX);
        if (Utils.isEmptyOrWhitespaces(mountPoint))
            mountPoint = "/dev/sdf";

        AttachVolumeRequest attachRequest = new AttachVolumeRequest().withInstanceId(this.machineId)
                .withDevice(mountPoint).withVolumeId(volumeId);

        try {
            this.ec2Api.attachVolume(attachRequest);
        } catch (Exception e) {
            this.logger.warning("EBS Volume attachment error: " + e);
        }

        // Set deleteOnTermination flag ?
        if (Boolean.parseBoolean(Ec2IaasHandler.findStorageProperty(this.targetProperties, storageId,
                VOLUME_DELETE_OT_PREFIX))) {
            EbsInstanceBlockDeviceSpecification ebsSpecification = new EbsInstanceBlockDeviceSpecification()
                    .withVolumeId(volumeId).withDeleteOnTermination(true);

            InstanceBlockDeviceMappingSpecification mappingSpecification = new InstanceBlockDeviceMappingSpecification()
                    .withDeviceName(mountPoint).withEbs(ebsSpecification);

            ModifyInstanceAttributeRequest request = new ModifyInstanceAttributeRequest()
                    .withInstanceId(this.machineId).withBlockDeviceMappings(mappingSpecification);

            this.ec2Api.modifyInstanceAttribute(request);
        }
    }

    return true;
}

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