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Amazon Application Elastic Load Balancing (ELB v2) C# Sample with HTTPS -> HTTP (HTTPS by ACM Certificate)
using Amazon.CertificateManager
using Amazon.EC2
using Amazon.ElasticLoadBalancingV2
using Amazon.ElasticLoadBalancingV2.Model
using System.Net.Http
using System.Threading.Tasks
using System.Windows.Forms.DataVisualization.Charting
public class Program
{
async Task Main()
{
var vpcTagName = "INPUT VPC TAG NAME";
var targetGroupName = "INPUT TARGET GROUP NAME";
var elbName = "INPUT ELB NAME";
var securityGroupName = "INPUT SECURITY GROUP TAG NAME";
var subnetGroupName = "INPUT SUBNET GROUP TAG NAME";
var acmDomainName = "INPUT ACM DOMAIN NAME";
var region = Amazon.RegionEndpoint.APNortheast1; // SELECT REGION ENDPOINT
using (var acmClient = new Amazon.CertificateManager.AmazonCertificateManagerClient(region))
using (var ec2Client = new Amazon.EC2.AmazonEC2Client(region))
using (var elbClient = new Amazon.ElasticLoadBalancingV2.AmazonElasticLoadBalancingV2Client(region))
{
var targetVpc = (await ec2Client.DescribeVpcsAsync()).Vpcs.Where(x => x.Tags.FirstOrDefault(tag => tag.Key == "Name").Value == vpcTagName).FirstOrDefault();
// Craete TargetGroups
var target = (await elbClient.DescribeTargetGroupsAsync(new DescribeTargetGroupsRequest())).TargetGroups.FirstOrDefault(x => x.TargetGroupName == targetGroupName && x.Protocol == ProtocolEnum.HTTP && x.Port == 80);
if (target == null)
{
await elbClient.CreateTargetGroupAsync(new CreateTargetGroupRequest
{
Protocol = ProtocolEnum.HTTP,
Port = 80,
VpcId = targetVpc.VpcId,
Name = targetGroupName,
// HealthCheckPath = "/",
// HealthCheckPort = 80,
});
}
// LoadBalancer
var loadbalancers = (await elbClient.DescribeLoadBalancersAsync(new DescribeLoadBalancersRequest())).LoadBalancers.Where(x => x.LoadBalancerName == elbName);
if (!loadbalancers.Any())
{
var securityGroups = (await ec2Client.DescribeSecurityGroupsAsync()).SecurityGroups.Where(x => x.Tags.FirstOrDefault(tag => tag.Key == "Name")?.Value == securityGroupName).Select(x => x.GroupId).ToList();
var subnets = (await ec2Client.DescribeSubnetsAsync()).Subnets.Where(x => x.Tags.FirstOrDefault(tag => tag.Key == "Name")?.Value?.StartsWith(subnetGroupName) ?? false).Select(x => x.SubnetId).ToList();
await elbClient.CreateLoadBalancerAsync(new CreateLoadBalancerRequest
{
Name = elbName,
SecurityGroups = securityGroups,
Subnets = subnets,
Scheme = LoadBalancerSchemeEnum.InternetFacing,
});
}
// Listener
var certificateArn = (await acmClient.ListCertificatesAsync()).CertificateSummaryList.Where(x => x.DomainName == acmDomainName).Select(x => x.CertificateArn).First();
var targetGroup = (await elbClient.DescribeTargetGroupsAsync(new DescribeTargetGroupsRequest())).TargetGroups.First(x => x.TargetGroupName == targetGroupName && x.Port == 80 && x.Protocol == ProtocolEnum.HTTP);
var listener = await elbClient.CreateListenerAsync(new CreateListenerRequest
{
Certificates = new List<Certificate>
{
new Certificate
{
CertificateArn = certificateArn,
}
},
Port = 443,
Protocol = ProtocolEnum.HTTPS,
LoadBalancerArn = (await elbClient.DescribeLoadBalancersAsync(new DescribeLoadBalancersRequest())).LoadBalancers.Where(x => x.LoadBalancerName == elbName).FirstOrDefault().LoadBalancerArn,
DefaultActions = new List<Amazon.ElasticLoadBalancingV2.Model.Action>
{
new Amazon.ElasticLoadBalancingV2.Model.Action
{
TargetGroupArn = targetGroup.TargetGroupArn,
Type = ActionTypeEnum.Forward,
}
}
});
}
}
}
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