TargetGroup

Source: src/AWS/ELBv2/TargetGroup.ts

An ELBv2 target group. A target group routes requests to one or more registered targets (instances, IPs, Lambda functions, or another ALB) using the configured protocol and port, and runs health checks against them.

Creating a Target Group

HTTP target group

const tg = yield* TargetGroup("web", {
  vpcId: vpc.vpcId,
  port: 80,
  protocol: "HTTP",
  targetType: "ip",
});

gRPC target group

const tg = yield* TargetGroup("grpc", {
  vpcId: vpc.vpcId,
  port: 50051,
  protocol: "HTTP",
  protocolVersion: "GRPC",
  matcher: { GrpcCode: "0" },
});

Health Checks

const tg = yield* TargetGroup("api", {
  vpcId: vpc.vpcId,
  port: 8080,
  protocol: "HTTP",
  healthCheckPath: "/healthz",
  healthCheckIntervalSeconds: 15,
  healthyThresholdCount: 3,
  unhealthyThresholdCount: 3,
});