connect: connection refused when running in a docker container

[dbeaugrand]

I'm new to krakend and working on putting together a proof of concept example. I have created a simple GET call to a Nodered (NodeJS) service that returns a simple "hello world". When I call GET url from postman directly to the service it responds properly. When I try and call this as an endpoint via Krakend I get a connection refused error in the console out.

Here ismy krakend.json:

{

"$schema": "https://www.krakend.io/schema/v3.json",

"version": 3,

"timeout": "3000ms",

"cache_ttl": "300s",

"name": "CHPIDA-CORE-API",

"port": 8080,

"host": ["http://127.0.0.1:8080"],

"disable_rest": true,

"extra_config": {

"telemetry/logging": {

"level": "DEBUG",

"prefix": "[KRAKEND]",

"syslog": false,

"stdout": true

},

"telemetry/metrics": {

"collection_time": "60s",

"proxy_disabled": false,

"router_disabled": false,

"backend_disabled": false,

"endpoint_disabled": false,

"listen_address": ":8090"

},

"security/cors": {

"allow_origins": [

"*"

],

"allow_methods": [

"GET",

"HEAD",

"POST",

"OPTIONS"

],

"expose_headers": [

"Content-Length",

"Content-Type"

],

"allow_headers": [

"Accept-Language"

],

"max_age": "12h",

"allow_credentials": false,

"debug": false

}

},

"endpoints": [

{

"endpoint": "/default-behavior",

"backend": [

{

"url_pattern": "/__debug/default"

}

]

},

{

"endpoint": "/v1/api/hello",

"method": "GET",

"output_encoding": "json",

"backend": [

{

"url_pattern": "/api/hello",

"encoding": "json",

"method": "GET",

"host": ["http://chpida-nodered-core:55100"]

}

],

"extra_config": {

}

}

]

}

as you can see I have changed the endpoint host to match what is in my docker compose file for the service endpoint. As a note: I have consoled into the docker services and pinged the service names to ensure that the services can see each other from the "bridge" configuration of my docker containers. I'm currently running the "latest" label on the docker image. Here is the docker compose snippet:

# #######################################

# Krakend (CHPIDA Core) API Gateway Service

# #######################################

chpida-krakend-core-api-gateway:

image: devopsfaith/krakend:latest

container_name: chpida-krakend-core-api-gateway

env_file: .env

ports:

- 8080:8080

- 8090:8090

depends_on:

- chpida-nodered-core

volumes:

- ./storage/krakend:/etc/krakend

command: "run -dc krakend_core_api.json"

networks:

- app-tier

# #######################################

Any help you could provide would be appreciated.

[Daniel Lopez]

Hi,

could you paste the error you are getting from krakend?

Kind regards