Issue with Keycloak Authority URL and Docker Compose Networking in Local Development #41566

sumit212083 · 2025-07-31T12:24:56Z

sumit212083
Jul 31, 2025

Hi everyone,

I have keycloak:8080/realm/ configured in the WebAPI's appsettings.json, and localhost:8080 configured in the Docker Compose file.

When I open the internal URL in the browser, I see it instead of localhost, but it should be localhost.

Also, if I add the frontend URL as an environment variable, I don't even see the authentication page.

I am doing this is all in local machine

webpai appsetting.json

"Authentication": { "Schemes": { "Default": { "Authority": "http://keycloak:8080/realms/test-realm", "Audience": "easley-hangfire", "ClientId": "easley-hangfire", "ClientSecret": "secret", "SignInCallbackPath": "/jobs/signin-oidc", "SignOutCallbackPath": "/", "SignOutRedirectUri": "http://localhost:5000/api/signin-oidc", "RequireHttpsMetadata": false, "NameIdentifier": "preferred_username" } }

Responce from inside of conatiner

`curl -i http://keycloak:8080/realms/test-realm/.well-known/openid-configuration
HTTP/1.1 200 OK
content-length: 6423
Cache-Control: no-cache, must-revalidate, no-transform, no-store
Content-Type: application/json;charset=UTF-8
Referrer-Policy: no-referrer
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN

{"issuer":"http://localhost:8080/realms/nc-easley","authorization_endpoint":"http://localhost:8080/realms/test-realm/protocol/openid-connect/auth","token_endpoint":"http://localhost:8080/realms/test-realm/protocol/openid-connect/token","introspection_endpoint":"http://localhost:8080/realms`

I get same response as above from localhost:8080//realms/test-realm/.well-known/openid-configuration while trying to access in browser

`version: '3.8'

services:
app:
image: yourrepo/app:latest
container_name: app-container
restart: unless-stopped
volumes:
- ./App.configuration.json:/app/assets/configuration.json
- /data/logs:/logs
ports:
- "4200:8080"
networks:
- app-net

api:
image: yourrepo/api:latest
container_name: api-container
restart: unless-stopped
environment:
ASPNETCORE_ENVIRONMENT: Development
volumes:
- ./dotnet/src/Client.WebApi/appsettings.json:/app/config/appsettings.json:ro
- ./dotnet/src/Client.WebApi/appsettings.Development.json:/app/config/appsettings.Development.json:ro
- /data/logs:/logs
stop_grace_period: 300s
ports:
- "5000:5000"
networks:
- app-net

backgroundjobs:
image: yourrepo/backgroundjobs:latest
container_name: backgroundjobs-container
restart: unless-stopped
environment:
DOTNET_ENVIRONMENT: Development
volumes:
- ./src/dotnet/Client.BackgroundJobs/appsettings.json:/app/config/appsettings.json:ro
- ./src/dotnet/Client.BackgroundJobs/appsettings.Development.json:/app/config/appsettings.Development.json:ro
- /data/logs:/logs
depends_on:
- postgresql
networks:
- app-net
extra_hosts:
- "keycloak:127.0.0.1"

cli:
image: yourrepo/cli:latest
container_name: cli-container
volumes:
- ./src/dotnet/Client.Cli/appsettings.json:/app/config/appsettings.json:ro
- ./src/dotnet/Client.Cli/appsettings.Development.json:/app/config/appsettings.Development.json:ro
- /data/logs:/logs
networks:
- app-net

postgresql:
image: postgres:latest
container_name: postgresql-container
environment:
POSTGRES_USER: youruser
POSTGRES_PASSWORD: yourpassword
POSTGRES_DB: yourdb
command: postgres -c max_connections=200
volumes:
- postgresql_data:/var/lib/postgresql/data
ports:
- "5442:5432"
networks:
- app-net

postgres-keycloak:
image: postgres:latest
container_name: postgres-keycloak-container
environment:
POSTGRES_USER: keycloak
POSTGRES_PASSWORD: yourpassword
POSTGRES_DB: keycloak
TZ: Europe/Copenhagen
volumes:
- postgres_keycloak_data:/var/lib/postgresql/data
ports:
- "5432:5432"
networks:
- app-net

keycloak:
image: quay.io/keycloak/keycloak:latest
container_name: keycloak-container
command: [ "start-dev", "--http-enabled=true", "--hostname-strict=false", "--hostname=localhost" ]
environment:
KC_DB: postgres
KC_DB_URL_HOST: postgres-keycloak
KC_DB_URL_PORT: 5432
KC_DB_URL_DATABASE: keycloak
KC_DB_USERNAME: keycloak
KC_DB_PASSWORD: yourpassword
KEYCLOAK_ADMIN: admin
KEYCLOAK_ADMIN_PASSWORD: yourpassword
KC_HTTP_ENABLED: "true"
network_mode: host
depends_on:
- postgres-keycloak

keycloak-config-cli:
image: adorsys/keycloak-config-cli:latest
depends_on:
- keycloak
environment:
KEYCLOAK_URL: http://keycloak:8080
KEYCLOAK_USER: admin
KEYCLOAK_PASSWORD: yourpassword
KEYCLOAK_AVAILABILITYCHECK_ENABLED: "true"
IMPORT_FILES_LOCATIONS: /config/*.json
volumes:
- ./keycloak-config:/config
networks:
- app-net

volumes:
postgresql_data:
postgres_keycloak_data:

networks:
app-net:
driver: bridge
`

Answered by sumit212083

Jul 31, 2025

It has been resloved for local machine

View full answer

sumit212083 · 2025-07-31T17:07:02Z

sumit212083
Jul 31, 2025
Author

It has been resloved for local machine

0 replies

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Jul 31, 2025
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