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

Example 16 with DescribeSubnetsRequest

use of com.amazonaws.services.ec2.model.DescribeSubnetsRequest in project cloudbreak by hortonworks.

the class AwsResourceConnector method findNonOverLappingCIDR.

protected String findNonOverLappingCIDR(AuthenticatedContext ac, CloudStack stack) {
    AwsNetworkView awsNetworkView = new AwsNetworkView(stack.getNetwork());
    String region = ac.getCloudContext().getLocation().getRegion().value();
    AmazonEC2Client ec2Client = awsClient.createAccess(new AwsCredentialView(ac.getCloudCredential()), region);
    DescribeVpcsRequest vpcRequest = new DescribeVpcsRequest().withVpcIds(awsNetworkView.getExistingVPC());
    Vpc vpc = ec2Client.describeVpcs(vpcRequest).getVpcs().get(0);
    String vpcCidr = vpc.getCidrBlock();
    LOGGER.info("Subnet cidr is empty, find a non-overlapping subnet for VPC cidr: {}", vpcCidr);
    DescribeSubnetsRequest request = new DescribeSubnetsRequest().withFilters(new Filter("vpc-id", singletonList(awsNetworkView.getExistingVPC())));
    List<Subnet> awsSubnets = ec2Client.describeSubnets(request).getSubnets();
    List<String> subnetCidrs = awsSubnets.stream().map(Subnet::getCidrBlock).collect(Collectors.toList());
    LOGGER.info("The selected VPCs: {}, has the following subnets: {}", vpc.getVpcId(), subnetCidrs.stream().collect(Collectors.joining(",")));
    return calculateSubnet(ac.getCloudContext().getName(), vpc, subnetCidrs);
}