Examples with DescribeAddressesResult com.amazonaws.services.ec2.model.DescribeAddressesResult used on opensource projects

Example 1 with DescribeAddressesResult

use of com.amazonaws.services.ec2.model.DescribeAddressesResult in project GNS by MobilityFirst.

the class AWSEC2 method describeElasticIPs.

/**
   *
   * @param ec2
   */
public static void describeElasticIPs(AmazonEC2 ec2) {
    StringBuilder output = new StringBuilder();
    String prefix = currentTab + "Elastic IPs: ";
    DescribeAddressesResult describeAddressesResult = ec2.describeAddresses();
    for (Address address : describeAddressesResult.getAddresses()) {
        output.append(prefix);
        prefix = ", ";
        output.append(address.getPublicIp());
    }
    System.out.println(output);
}

Example 2 with DescribeAddressesResult

use of com.amazonaws.services.ec2.model.DescribeAddressesResult in project aws-doc-sdk-examples by awsdocs.

the class DescribeAddresses method main.

public static void main(String[] args) {
    final AmazonEC2 ec2 = AmazonEC2ClientBuilder.defaultClient();
    DescribeAddressesResult response = ec2.describeAddresses();
    for (Address address : response.getAddresses()) {
        System.out.printf("Found address with public IP %s, " + "domain %s, " + "allocation id %s " + "and NIC id %s", address.getPublicIp(), address.getDomain(), address.getAllocationId(), address.getNetworkInterfaceId());
    }
}

Example 3 with DescribeAddressesResult

use of com.amazonaws.services.ec2.model.DescribeAddressesResult in project eureka by Netflix.

the class EIPManager method unbindEIP.

/**
     * Unbind the EIP that this instance is associated with.
     */
public void unbindEIP() throws Exception {
    InstanceInfo myInfo = applicationInfoManager.getInfo();
    String myPublicIP = null;
    if (myInfo != null && myInfo.getDataCenterInfo().getName() == Name.Amazon) {
        myPublicIP = ((AmazonInfo) myInfo.getDataCenterInfo()).get(MetaDataKey.publicIpv4);
        if (myPublicIP == null) {
            logger.info("Instance is not associated with an EIP. Will not try to unbind");
            return;
        }
        try {
            AmazonEC2 ec2Service = getEC2Service();
            DescribeAddressesRequest describeAddressRequest = new DescribeAddressesRequest().withPublicIps(myPublicIP);
            DescribeAddressesResult result = ec2Service.describeAddresses(describeAddressRequest);
            if ((result.getAddresses() != null) && (!result.getAddresses().isEmpty())) {
                Address eipAddress = result.getAddresses().get(0);
                DisassociateAddressRequest dissociateRequest = new DisassociateAddressRequest();
                String domain = eipAddress.getDomain();
                if ("vpc".equals(domain)) {
                    dissociateRequest.setAssociationId(eipAddress.getAssociationId());
                } else {
                    dissociateRequest.setPublicIp(eipAddress.getPublicIp());
                }
                ec2Service.disassociateAddress(dissociateRequest);
                logger.info("Dissociated the EIP {} from this instance", myPublicIP);
            }
        } catch (Throwable e) {
            throw new RuntimeException("Cannot dissociate address from this instance", e);
        }
    }
}

Example 4 with DescribeAddressesResult

use of com.amazonaws.services.ec2.model.DescribeAddressesResult in project eureka by Netflix.

the class EIPManager method bindEIP.

/**
     * Checks if an EIP is bound and optionally binds the EIP.
     *
     * The list of EIPs are arranged with the EIPs allocated in the zone first
     * followed by other EIPs.
     *
     * If an EIP is already bound to this instance this method simply returns. Otherwise, this method tries to find
     * an unused EIP based on information from AWS. If it cannot find any unused EIP this method, it will be retried
     * for a specified interval.
     *
     * One of the following scenarios can happen here :
     *
     *  1) If the instance is already bound to an EIP as deemed by AWS, no action is taken.
     *  2) If an EIP is already bound to another instance as deemed by AWS, that EIP is skipped.
     *  3) If an EIP is not already bound to an instance and if this instance is not bound to an EIP, then
     *     the EIP is bound to this instance.
     */
public void bindEIP() {
    InstanceInfo myInfo = applicationInfoManager.getInfo();
    String myInstanceId = ((AmazonInfo) myInfo.getDataCenterInfo()).get(MetaDataKey.instanceId);
    String myZone = ((AmazonInfo) myInfo.getDataCenterInfo()).get(MetaDataKey.availabilityZone);
    Collection<String> candidateEIPs = getCandidateEIPs(myInstanceId, myZone);
    AmazonEC2 ec2Service = getEC2Service();
    boolean isMyinstanceAssociatedWithEIP = false;
    Address selectedEIP = null;
    for (String eipEntry : candidateEIPs) {
        try {
            String associatedInstanceId;
            // Check with AWS, if this EIP is already been used by another instance
            DescribeAddressesRequest describeAddressRequest = new DescribeAddressesRequest().withPublicIps(eipEntry);
            DescribeAddressesResult result = ec2Service.describeAddresses(describeAddressRequest);
            if ((result.getAddresses() != null) && (!result.getAddresses().isEmpty())) {
                Address eipAddress = result.getAddresses().get(0);
                associatedInstanceId = eipAddress.getInstanceId();
                // already marked.
                if (((associatedInstanceId == null) || (associatedInstanceId.isEmpty()))) {
                    if (selectedEIP == null) {
                        selectedEIP = eipAddress;
                    }
                } else if (isMyinstanceAssociatedWithEIP = (associatedInstanceId.equals(myInstanceId))) {
                    // This EIP is associated with an instance, check if this is the same as the current instance.
                    // If it is the same, stop searching for an EIP as this instance is already associated with an
                    // EIP
                    selectedEIP = eipAddress;
                    break;
                } else {
                    // The EIP is used by some other instance, hence skip it
                    logger.warn("The selected EIP {} is associated with another instance {} according to AWS," + " hence skipping this", eipEntry, associatedInstanceId);
                }
            }
        } catch (Throwable t) {
            logger.error("Failed to bind elastic IP: {} to {}", eipEntry, myInstanceId, t);
        }
    }
    if (null != selectedEIP) {
        String publicIp = selectedEIP.getPublicIp();
        // Only bind if the EIP is not already associated
        if (!isMyinstanceAssociatedWithEIP) {
            AssociateAddressRequest associateAddressRequest = new AssociateAddressRequest().withInstanceId(myInstanceId);
            String domain = selectedEIP.getDomain();
            if ("vpc".equals(domain)) {
                associateAddressRequest.setAllocationId(selectedEIP.getAllocationId());
            } else {
                associateAddressRequest.setPublicIp(publicIp);
            }
            ec2Service.associateAddress(associateAddressRequest);
            logger.info("\n\n\nAssociated {} running in zone: {} to elastic IP: {}", myInstanceId, myZone, publicIp);
        }
        logger.info("My instance {} seems to be already associated with the EIP {}", myInstanceId, publicIp);
    } else {
        logger.info("No EIP is free to be associated with this instance. Candidate EIPs are: {}", candidateEIPs);
    }
}