I have found the solution myself.
In the current Version of the ProGet Dockercontainer you have to specify the same environment variable as for BuildMaster or Otter: ASPNETCORE_URLS

So here is my modified docker-compose.yaml:

  proget:
    container_name: ProGet
    image: proget.inedo.com/productimages/inedo/proget:latest
    restart: unless-stopped
    networks:
      - devenv-network
    environment:
      SQL_CONNECTION_STRING: 'Data Source=pgdb; Initial Catalog=ProGet; User ID=sa; Password=***'
      TZ: 'Europe/Berlin'
      ASPNETCORE_URLS: 'http://*:8181'
    ports:
      - '8181:8181'
    volumes:
      - '$PROGET_HOME/packages:/var/proget/packages'
    depends_on:
      - progetDb

So, my ProGet is running now, but could please someone update the documentation on this topic.

Hi everyone,

I'm trying to run ProGet on a rootless docker. But I'm not able to switch its ports.
I just tried to do it like mentioned in Troubleshooting Docker Installations

But the config file seams to be ignoerd by ProGet.

I even removed all relevant containers from the system and create everything from the scratch, but it still doesn't work.

What am I doing wrong?
I also can't find any errors in the logs of the container.

The ProGet.config looks like this:

<?xml version="1.0" encoding="utf-8"?><InedoAppConfig><ConnectionString Type="SqlServer"></ConnectionString><WebServer Enabled="true" Urls="http://*:8181/"/></InedoAppConfig>

And the relevant Part of my docker-compose.yaml like this:

  proget:                                                                                                             
    container_name: ProGet                                                                                            
    image: proget.inedo.com/productimages/inedo/proget:latest                                                         
    restart: unless-stopped                                                                                           
    networks:                                                                                                         
      - devenv-network                                                                                                
    environment:                                                                                                      
      SQL_CONNECTION_STRING: 'Data Source=pgdb; Initial Catalog=ProGet; User ID=sa; Password=***'
      TZ: 'Europe/Berlin'                                                                                             
    ports:                                                                                                            
      - '8181:8181'                                                                                                   
    volumes:                                                                                                          
      - '$PROGET_HOME/packages:/var/proget/packages'                                                                  
      - '$PROGET_HOME/config:/usr/share/Inedo/SharedConfig'                                                           
    depends_on:                                                                                                       
      - progetDb