I am building gRPC server with Ruby and trying to request it from Ruby Client through AWS ALB.We deploy it to AWS ECS on Fargate
problem
When I try to send requrest throgh ALB, I got the error below
GRPC::Unavailable (14:failed to connect to all addresses; last error: INTERNAL: ipv4:myip:50051: Trying to connect an http1.x server. debug_error_string:{UNKNOWN:failed to connect to all addresses; last error: INTERNAL: ipv4:myip:50051: Trying to connect an http1.x server {grpc_status:14, created_time:"2023-08-04T19:03:50.762448829+09:00"}}):[6edb224a-1729-49ae-aa15-d396e4e04366] GRPC::Unavailable (14:failed to connect to all addresses; last error: INTERNAL: ipv4:myip:50051: Trying to connect an http1.x server. debug_error_string:{UNKNOWN:failed to connect to all addresses; last error: INTERNAL: ipv4:myip:50051: Trying to connect an http1.x server {grpc_status:14, created_time:"2023-08-04T19:03:50.762448829+09:00"}}):I use CDK to build Cloud and the code is like this
const alb = new ApplicationLoadBalancer(scope, 'alb', { internetFacing: true, http2Enabled: true, loadBalancerName: `alb`, securityGroup: this.sgGroups[0], vpcSubnets: { subnets: this.subnets, }, vpc: this.vpc, }) const tg = new ApplicationTargetGroup(scope, 'a', { protocol: ApplicationProtocol.HTTP, protocolVersion: ApplicationProtocolVersion.GRPC, port: 50051, targetType: TargetType.IP, vpc: this.vpc, healthCheck: { healthyGrpcCodes: '0-99', port: '8080', path: '/grpc.health.v1.Health/Check', protocol: Protocol.HTTP, }, }) new ApplicationListener(scope, 'b', { loadBalancer: alb, protocol: ApplicationProtocol.HTTPS, port: 50051, certificates: [ { certificateArn: certificate.certificateArn, }, ], defaultTargetGroups: [tg], })What I confirmed
- gRPC server works fine becaseuse I got resepose when I attached domain to Fargate Task public IP without ALB and request it with ruby client.
- ALB Health Check status is healthy
- I checked security group, and it looks fine. they allow 50051 and 8080 request from anywhere.
- I found similar problem on StackOverflow url, but it doesnt work for me.
I will be very happy if someone has know something and let me know.