Quarkus Keycloak Docker Connection refused #15175

zelytra · 2022-10-26T14:35:56Z

zelytra
Oct 26, 2022

Hello, i tried to run an application using PSQL, Quarkus, Keycloak all running in docker-compose which is :

version: '3.4'
services:

  postgres:
    image: postgres:14.2-alpine
    container_name: mlm-postgres
    ports:
      - "6900:5432"
    volumes:
      - ./psql-config/init.sql:/docker-entrypoint-initdb.d/init.sql
    environment:
      TZ: 'Europe/Paris'
      PGTZ: 'Europe/Paris'
      POSTGRES_USER: admin
      POSTGRES_PASSWORD: password
      POSTGRES_DB: MinecraftLogManager
      PGDATA: /var/lib/postgresql/data/pgdata
    restart: unless-stopped
    networks:
      - mlm_network

  keycloak:
    image: jboss/keycloak:16.1.0
    container_name: mlm-keycloak
    depends_on:
      - postgres
    ports:
      - "6901:8080"
    volumes:
      - ./keycloak-config:/opt/jboss/keycloak/imports
    command:
      - "-b 0.0.0.0 -Dkeycloak.import=/opt/jboss/keycloak/imports/realm-export.json"
    environment:
      DB_VENDOR: postgres
      DB_ADDR: postgres
      DB_DATABASE: MinecraftLogManager
      DB_USER: admin
      DB_PASSWORD: password
      KEYCLOAK_USER: admin
      KEYCLOAK_PASSWORD: password
    restart: unless-stopped
    networks:
      - mlm_network

  backend:
    image: mlm_backend:latest
    container_name: mlm-backend
    depends_on:
      - postgres
      - keycloak
    ports:
      - "6902:8080"
    environment:
      DB_HOST: postgres
      DB_DATABASE: MinecraftLogManager
      DB_USER: admin
      DB_PASSWORD: password
      KEYCLOAK_HOST: keycloak
      KEYCLOAK_CLIENT_ID: backend
    #restart: unless-stopped
    networks:
      - mlm_network

  #frontend:
  #  image: mlm_frontend:latest
  #  container_name: mlm-frontend
  #  depends_on:
  #    - postgres
  #    - keycloak
  #    - backend
  #  ports:
  #    - "6903:80"
  #    - "443:443"
  #  restart: unless-stopped

networks:
  mlm_network:
    driver: bridge

My Keycloak and PSQL docker run nicely and connect to each other with any problem. But when my backend service is starting i got this connection refused error message :

2022-10-26 14:23:19,379 WARN  [io.qua.oid.com.run.OidcCommonUtils] (vert.x-eventloop-thread-1) OIDC Server is not available:: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: keycloak/172.22.0.3:80
Caused by: java.net.ConnectException: Connection refused
at java.base/sun.nio.ch.Net.pollConnect(Native Method)
at java.base/sun.nio.ch.Net.pollConnectNow(Net.java:672)
at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:946)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:337)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:776)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:724)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:650)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:997)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:833)

I cannot understand why my backend cannot connect to keycloak. Btw the backend arrive to connect with PSQL (any errors throw) and Keycloak is accessible in the browther with localhost address and also with my public address.

Is an docker/keycloak expert to tell me what am i doing wrong in my process ?

I suspect it come from Keycloak configuration or docker-compose, because when i run Quarkus in my code editor with same docker for keycloak and psql everythins works well. It's only when i deploy my quarkus application that's the problem appear.

(My english is not the most perfect of the world i know but i try my best... sorry by advence)

zelytra · 2022-10-26T15:22:21Z

zelytra
Oct 26, 2022
Author

If you need all my project file to inspect all configurations settings here's the link of my repo :

https://github.com/zelytra/MinecraftLogManager

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Quarkus Keycloak Docker Connection refused #15175

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Quarkus Keycloak Docker Connection refused #15175

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zelytra Oct 26, 2022

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zelytra Oct 26, 2022 Author

zelytra
Oct 26, 2022

zelytra
Oct 26, 2022
Author