运行docker-compose up时未使用ASPNETCORE_URLS ARG

Question

我有一个带Postgres Db的ASP.NET Core API。我正在尝试对整个应用程序进行Docker化。

这是我的Dockerfile：

# set base image as the dotnet 2.2 SDK.
FROM microsoft/dotnet:2.2-sdk AS build-env

# set the working directory for any RUN, CMD, ENTRYPOINT, COPY and ADD
# instructions that follows the WORKDIR instruction.
WORKDIR /app

# our current working directory within the container is /app
# we now copy all the files (from local machine) to /app (in the container).
COPY . ./

# again, on the container (we are in /app folder)
# we now publish the project into a folder called 'out'.
RUN dotnet publish Bejebeje.Api/Bejebeje.Api.csproj -c Release -o out

# set base image as the dotnet 2.2 runtime.
FROM microsoft/dotnet:2.2-aspnetcore-runtime AS runtime

# local variable
ARG customport

# temporary test to make sure the variable is coming through.
RUN echo "ASPNETCORE_URLS -> $customport"

# telling the application what port to run on.
ENV ASPNETCORE_URLS=$customport

# set the working directory for any RUN, CMD, ENTRYPOINT, COPY and ADD
# instructions that follows the WORKDIR instruction.
WORKDIR /app

# copy the contents of /app/out in the `build-env` and paste it in the
# `/app` directory of the new runtime container.
COPY --from=build-env /app/Bejebeje.Api/out .

# set the entry point into the application.
ENTRYPOINT ["dotnet", "Bejebeje.Api.dll", "-seed"]

这是我的docker-compose.yml：

version: "3.7"

services:
  bejebeje-api:
    build:
      context: .
      dockerfile: ./Bejebeje.Api/Dockerfile
      args:
        - customport=http://*5005
      labels:
        com.bejebeje.description: "Bejebeje's API"
    image: bejebeje-api:latest
    ports:
      - "5005:5005"
    env_file:
      - ./variables.env
    depends_on:
      - database
  database:
    image: postgres
    ports:
      - "8002:5432"
    volumes:
      - data-volume:/var/lib/postgresql/data
    env_file:
      - ./variables.env

volumes:
  data-volume:

我首先运行docker-compose build，我可以看到

Step 7/12 : RUN echo "ASPNETCORE_URLS -> $customport"
 ---> Running in cd127d488021
ASPNETCORE_URLS -> http://*5005

因此我的自定义参数通过了，但是当我运行docker-compose up时，应用程序仍在端口80而非5005上运行。

我的variables.env具有以下内容：

FrontendCorsOrigin=http://localhost:1234
ApiName=bejebeje-api
Authority=http://localhost:5000
Database__DefaultConnectionString=Server=database;Port=5432;Database=DbName;User Id=postgres;Password=awesomePass;
POSTGRES_PASSWORD=awesomePass
POSTGRES_DB=DbName

我在做什么错了？