# Connect() failed (111: Connection refused) while connecting to upstream **URL:** \ **Category:** General\ **Tags:** kong-gateway\ **Created:** [June 12, 2019, 1:37pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731 "2019-06-12T13:37:42Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 12, 2019, 1:37pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/1 "2019-06-12T13:37:42Z")
Hi, I am using Kong and spring boot applications in Docker Spring boot app configuration: > ``` > server.servlet.context-path=/userservice > server.port=9090 > spring.application.name=userservice > > ``` Here is the Dockerfile > FROM openjdk:12 > ADD target/userservice.jar userservice.jar > EXPOSE 9090 > ENTRYPOINT [“java”,“-jar”,“userservice.jar”] Docker command to push microservice to docker > docker run -p 9090:9090 userservice APIs added to kong curl -i -X POST –url [http://localhost:8001/services/](http://localhost:8001/services/) –data ‘name=userservice’ –data ‘url=[http://localhost:9090/userservice](http://localhost:9090/userservice)’ curl -i -X POST –url [http://localhost:8001/services/userservice/routes](http://localhost:8001/services/userservice/routes) –data ‘hosts=[api.com](http://api.com)’ curl -i -X GET –url [http://localhost:8000/](http://localhost:8000/) –header ‘Host: [api.com](http://api.com)’ ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 12, 2019, 1:38pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/2 "2019-06-12T13:38:46Z")
And the outcome is \*_2019/06/12 13:31:13 [error] 39#0: 184849 connect() failed (111: Connection refused) while connecting to upstream, client: 172.18.0.1, server: kong, request: “GET / HTTP/1.1”, upstream: “[http://127.0.0.1:9090/userservice](http://127.0.0.1:9090/userservice)”, host: “[api.com](http://api.com)”_ Any clues? -Rana ---
**Author:** ![mgkong](https://avatars.discourse-cdn.com/v4/letter/m/ce7236/32.png) [@mgkong](https://discuss.konghq.com/u/mgkong)\ **Post date:** [June 12, 2019, 5:13pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/3 "2019-06-12T17:13:07Z")
Docker should be usually running on host ip and not loopback address (127…0.0.1) so replace “localhost” in your service url in your services config to http://:9090/… ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 13, 2019, 1:36am UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/4 "2019-06-13T01:36:18Z")
Thanks mgkong for the response. That has to be done at nginx configuration inside the docker. right? Can you please give more insight? ---
**Author:** ![mgkong](https://avatars.discourse-cdn.com/v4/letter/m/ce7236/32.png) [@mgkong](https://discuss.konghq.com/u/mgkong)\ **Post date:** [June 13, 2019, 3:55pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/5 "2019-06-13T15:55:29Z")
In service definition of your Kong server “userservice”, I see the service URL configured is [http://localhost:9090/userservice](http://localhost:9090/userservice). In this service URL, try replacing “localhost” with actual IP address of the host where this upstream services (hosted on docker) is running. ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 14, 2019, 2:07am UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/6 "2019-06-14T02:07:14Z")
thanks mgkong. i tried the both public ip and local network ip without any success ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 15, 2019, 3:18am UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/7 "2019-06-15T03:18:54Z")
when i do docker inspect on my spring boot container below o/p observed “Gateway”: “172.17.0.1”, “IPAddress”: “172.17.0.2”, “IPPrefixLen”: 16, “IPv6Gateway”: “” i logged in to KONG container and curl the above ip’s, i see one 302 and another one connection refused **/ # curl -i -H “Accept: application/json” -H “Content-Type: application/json” -X GET [http://172.18.0.1:9090/userservice](http://172.18.0.1:9090/userservice)** \*\*HTTP/1.1 302 \*\* **Location : [http://172.18.0.1:9090/userservice/](http://172.18.0.1:9090/userservice/)** **Transfer-Encoding : chunked** **Date : Sat, 15 Jun 2019 03:14:07 GMT** and when i do the same on 172.18.0.2 **/ # curl -i -H “Accept: application/json” -H “Content-Type: application/json” -X GET [http://172.18.0.2:9090/userservice](http://172.18.0.2:9090/userservice)** **curl: (7) Failed to connect to 172.18.0.2 port 9090: Connection refused** but i can see from my host machine browser [http://localhost:9090/userservice/](http://localhost:9090/userservice/) is working fine any thing i miss here ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 15, 2019, 4:59am UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/8 "2019-06-15T04:59:28Z")
``` i think the network ip is different in diff networks here "NetworkSettings": { "Bridge": "", "SandboxID": "dbadc3aed953f3b08666c4ae43164a5d33740300f2b58a938ae8f60f1c556402", "HairpinMode": false, "LinkLocalIPv6Address": "", "LinkLocalIPv6PrefixLen": 0, "Ports": { "9090/tcp": [ { "HostIp": "0.0.0.0", "HostPort": "9090" } ] }, "SandboxKey": "/var/run/docker/netns/dbadc3aed953", "SecondaryIPAddresses": null, "SecondaryIPv6Addresses": null, "EndpointID": "", "Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "IPAddress": "", "IPPrefixLen": 0, "IPv6Gateway": "", "MacAddress": "", "Networks": { "kong-net": { "IPAMConfig": null, "Links": null, "Aliases": [ "524b0361c5c6" ], "NetworkID": "fad502a41154a6422a3270a859eae6c048316fb959ad54d664ad37b49051fa47", "EndpointID": "6b35cf7d1535db925a720013f0b647695e1cde7c2a257b14a12972107c216858", "Gateway": "172.18.0.1", "IPAddress": "172.18.0.4", "IPPrefixLen": 16, "IPv6Gateway": "", "GlobalIPv6Address": "", "GlobalIPv6PrefixLen": 0, "MacAddress": "02:42:ac:12:00:04", "DriverOpts": null } } } ``` ---
**Author:** ![ranadheer\_machineni](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/ranadheer_machineni/32/1105_2.png) [@ranadheer\_machineni](https://discuss.konghq.com/u/ranadheer_machineni)\ **Post date:** [June 15, 2019, 2:29pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/9 "2019-06-15T14:29:17Z")
i managed to solve the issue. the change worked here is i removed exposure the Spring boot app to the outside world Changed `docker run -p 9090:9090 userservice` to > ``` > docker run -d --name userservice \ > --net kong-net \ > userservice > > ``` ---
**Author:** ![schumannjon](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/schumannjon/32/4078_2.png) [@schumannjon](https://discuss.konghq.com/u/schumannjon)\ **Post date:** [August 14, 2023, 8:58pm UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/10 "2023-08-14T20:58:41Z")
Thank you! It took me 3 days of searching to find this solution. I am using docker compose for 2 services + kong gateway. I commented out the ports for the services in the docker compose file and I am no longer getting Connection refused. ---
**Author:** ![3A\_Gefi\_Aulia\_Sanjay](https://yyz2.discourse-cdn.com/flex036/user_avatar/discuss.konghq.com/3a_gefi_aulia_sanjay/32/4612_2.png) [@3A\_Gefi\_Aulia\_Sanjay](https://discuss.konghq.com/u/3A_Gefi_Aulia_Sanjay)\ **Post date:** [August 20, 2024, 4:51am UTC](https://discuss.konghq.com/t/connect-failed-111-connection-refused-while-connecting-to-upstream/3731/11 "2024-08-20T04:51:01Z")
i encountered same problem, but commenting the ports not solving anything. can u be more specific?