Gateway timeout

[lrkwz]

I cannot make the gateway work properly. I've read #21 and bound my app to the host ip 172.20.0.1 (resulting from docker network inspect bridge --format='{{( index .IPAM.Config 0).Gateway}}').

Relevant part of docker-compose.yml is:

version: '3'
services:
    my-api-gateway:
        image: qoomon/docker-host
        cap_add: [ 'NET_ADMIN', 'NET_RAW' ]
        # mem_limit: 4M
        restart: on-failure
    web:
        image: my-webapp-ui
        ports:
        - "80:80"

Then I start the java api mvn spring-boot:run which listens on 172.20.0.1 port 8080.

From the host shell:

$ curl http://172.20.0.1:8080/management/health
{
  "status" : "UP"
}

From the goomon/docker-host container:

$ docker-compose exec my-api-gateway sh
# curl http://172.20.0.1:8080/management/health
{
  "status" : "UP"
} 

From the linked container:

$  docker-compose exec web sh
# curl http://my-api-gateway:8080/management/health
curl: (7) Failed to connect to my-api-gateway port 8080: Operation timed out

What's wrong in my config?

[qoomon]

Which host environment you're working with? Can you access the host by do curl http://172.20.0.1:8080/management/health from within web container? Can you ping my-api-gateway from within web container?

[lrkwz]

Working with ubuntu 18.04

Yes I can both curl the host ip and ping the gateway name.

No firewall in the way

[qoomon]

Strange. What are the logs of my-api-gateway when starting? Do you have the same problem when you try one of the example at https://github.com/qoomon/docker-host/blob/master/README.md

[lrkwz]

The logs where pretty normal:

Docker Host: 172.20.0.1 (default gateway)
Forwarding ports: 0:65535

I resolved dropping all the containers, removing all the docker-networks and start all over again. It must have been a mess with the "real" networks (eth, wifi) and docker's nets.

Sorry for bothering you.

[qoomon]

Glad to hear that.

On Sat, 7 Sep 2019, 18:48 Luca Orlandi, notifications@github.com wrote:

The logs where pretty normal:

Docker Host: 172.20.0.1 (default gateway) Forwarding ports: 0:65535

I resolved dropping all the containers, removing all the docker-networks and start all over again. It must have been a mess with the "real" networks (eth, wifi) and docker's nets

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