如何为CDK中的两个不同端口配置ELB

Question

我有一个弹性负载均衡器，为EC2实例提供流量。我有一个应用程序在443端口上运行，它运行得很好。

现在我想在端口444上的EC2实例上运行另一个应用程序。我希望能够通过点击端口443运行第一个应用程序，通过点击端口444运行第二个应用程序。

不知怎么的，我无法将端口444添加到CDK中的负载均衡器。我正在做这样的事情。

const appLoadbalancer = new elbv2.ApplicationLoadBalancer(this, `${props.type}AppLoadBalancer`, {
vpc: vpc,
vpcSubnets: subnets,
internetFacing: true,
});
const httpsListener = appLoadbalancer.addListener(`${props.type}HTTPSListener`, {
port: 443,
open: true,
certificates: [props.certificate]
});
httpsListener.addTargets(`${props.type}HTTPSTarget`, {
port: 443,
targets: [autoscalingGroup],
healthCheck: {
enabled: true,
healthyHttpCodes: "200,302"
}
});
const httpsListener2 = appLoadbalancer.addListener(`${props.type}HTTPSListener2`, {
port: 444,
protocol: elbv2.ApplicationProtocol.HTTPS,
open: true,
certificates: [props.certificate]
});
httpsListener2.addTargets(`${props.type}HTTPSTarget2`, {
port: 444,
protocol: elbv2.ApplicationProtocol.HTTPS,
targets: [autoscalingGroup],
healthCheck: {
enabled: true,
healthyHttpCodes: "200,302"
}
});

如果它只为443端口设置，一切都很好。但当我尝试以上内容时，我会得到类似的东西：

Error: Cannot add AutoScalingGroup to 2nd Target Group

我不知道这是什么意思，也不知道如何在cdk中修复它。。。

Answer 1

我最终得到了这样的解决方案：

const appLoadbalancer = new elbv2.ApplicationLoadBalancer(this, `${props.type}AppLoadBalancer`, {
vpc: vpc,
vpcSubnets: subnet,
internetFacing: true,
});
const tg1 = new elbv2.ApplicationTargetGroup(this, "tg1", {
vpc: vpc,
protocol: elbv2.ApplicationProtocol.HTTPS})
const tg2 = new elbv2.ApplicationTargetGroup(this, "tg2", {vpc: vpc,
protocol: elbv2.ApplicationProtocol.HTTPS, port: 444})
const httpsListener = appLoadbalancer.addListener(`${props.type}HTTPSListener`, {
port: 443,
protocol: elbv2.ApplicationProtocol.HTTPS,
open: true,
certificates: [props.certificate]
});
httpsListener.addTargetGroups("RestTarget", {
targetGroups: [tg1]
});
const httpsListener2 = appLoadbalancer.addListener(`${props.type}HTTPSListener2`, {
port: 444,
protocol: elbv2.ApplicationProtocol.HTTPS,
open: true,
certificates: [props.certificate]
});
httpsListener2.addTargetGroups("RestTarget", {
targetGroups: [tg2]
});
const ServiceAsg = autoscalingGroup.node.defaultChild as autoscaling.CfnAutoScalingGroup
ServiceAsg.targetGroupArns = [tg1.targetGroupArn, tg2.targetGroupArn]