Run pgAdmin4 on a custom path with Docker

Question

I have a pgAdmin4 running within a Docker Container.

I'm trying to run on a custom path because there is another server running on the default / path.

I've tried all possible env vars but as soon as pgAdmin runs, it redirects to / and the page goes to the other server running.

pgadmin:
    restart: always
    container_name: pgadmin
    image: dpage/pgadmin4:6.10
    environment:
      - PGADMIN_DEFAULT_EMAIL=someemail
      - PGADMIN_DEFAULT_PASSWORD=somepassword
      - PGADMIN_DISABLE_POSTFIX=true
      #- PGADMIN_ENABLE_TLS=false
      - PGADMIN_LISTEN_ADDRESS=0.0.0.0
      - PGADMIN_LISTEN_PORT=80
      - PROXY_X_FOR_COUNT=2
      - PROXY_X_PROTO_COUNT=2
      - PROXY_X_HOST_COUNT=2
      - PROXY_X_PORT_COUNT=2
      - PROXY_X_PREFIX_COUNT=2
    
    networks:
      - databases
      - nginx
    labels:
      - "traefik.enable=true" 
      - "traefik.backend=pgadmin4" 
      - "traefik.frontend.priority=600" 
      - "traefik.frontend.rule=Method:GET" 
      - "traefik.frontend.rule=PathPrefix:/url-secreta/pgadmin"    

I want the pgAdmin4 to respond on www.mywebsite.com/url-secreta/pgadmin.

I've already defined the routes on my Kong gateway, but when the request reaches pgadmin it redirects to /.

How can i fix it?

Answer 1

accroding to Container Deployment — pgAdmin 4 6.10 documentation

The SCRIPT_NAME environment variable has been set to tell the container it is being hosted under a subdirectory (in the same way as the X-Script-Name header is used with Nginx), and a label has been added to tell Traefik to route requests under the subdirectory to this container.

you should add SCRIPT_NAME to your environment

pgadmin:
    restart: always
    container_name: pgadmin
    image: dpage/pgadmin4:6.10
    environment:
      - PGADMIN_DEFAULT_EMAIL=someemail
      - PGADMIN_DEFAULT_PASSWORD=somepassword
      - PGADMIN_DISABLE_POSTFIX=true
      #- PGADMIN_ENABLE_TLS=false
      - PGADMIN_LISTEN_ADDRESS=0.0.0.0
      - PGADMIN_LISTEN_PORT=80
      - PROXY_X_FOR_COUNT=2
      - PROXY_X_PROTO_COUNT=2
      - PROXY_X_HOST_COUNT=2
      - PROXY_X_PORT_COUNT=2
      - PROXY_X_PREFIX_COUNT=2
      - SCRIPT_NAME=/url-secreta/pgadmin # add this line
    
    networks:
      - databases
      - nginx
    labels:
      - "traefik.enable=true" 
      - "traefik.backend=pgadmin4" 
      - "traefik.frontend.priority=600" 
      - "traefik.frontend.rule=Method:GET" 
      - "traefik.frontend.rule=PathPrefix:/url-secreta/pgadmin"