How can I deploy a graphql API with docker-compose in azure

I have problems trying to deploy a graphql API to Azure web apps (I don't know if it's the right place but here's my case)

My expectation

I want to deploy a graphql API using a docker-compose file with azure-container-registry. I use docker for local development and everything is correct. In the docker-compose file I define my local enviroment variables, and in my node.js API I reference this variables using process.env.{variable_name}

My problem

In production, I got a blank page (with no visible error log) when I was trying to access my currently deployed app link (For example https://myapp.azurewebsites.net/graphql)

Here's the stack of my graphql API: Apollo Server, Nodejs, Docker compose (I used apollo-server-express)

What I tried

I used Azure pipelines to deploy the front-end repository of my application and configured a GitHub action too. So I decided to use the same logic with my backend repository.

I already deployed my mongodb using Atlas.

I put my docker-compose-prod.yml variables between ${ } symbols because I guess this is necessary for the azure pipelines to detect where I'm going to put my variables

This is how it looks like.

# Docker
# Build and push an image to Azure Container Registry
# https://learn.microsoft.com/azure/devops/pipelines/languages/docker

trigger:
- main

resources:
- repo: self

variables:
  # Container registry service connection established during pipeline creation
  dockerRegistryServiceConnection: <.....>
  imageRepository: 'myimagereposity'
  containerRegistry: 'mycontainerregistry.azurecr.io'
  dockerfilePath: '$(Build.SourcesDirectory)/Dockerfile.dev'
  tag: '$(Build.BuildId)'
  dockerComposeFile: '$(Build.SourcesDirectory)/docker-compose-prod.yml'
  projectName: $(Build.Repository.Name)
  # Agent VM image name
  vmImageName: 'ubuntu-latest'

stages:
- stage: Build
  displayName: Build and push stage
  jobs:  
  - job: Build
    displayName: Build
    pool:
      vmImage: $(vmImageName)
    steps:
    - task: DockerCompose@0
      inputs:
        containerregistrytype: 'Azure Container Registry'
        azureSubscription: 'Suscripcion developer 1(id-subs)'
        azureContainerRegistry: '{"loginServer":"mycontainerregistry.azurecr.io", "id" : "/subscriptions/id-subs/resourceGroups/proyecto-final/providers/Microsoft.ContainerRegistry/registries/mycontainername"}'
        dockerComposeFile: '**/docker-compose-prod.yml'
        dockerComposeFileArgs: |
          DATABASE_URL=mongodb+srv://mydb-user:$(dbpassword)@cluster0.defvz.mongodb.net/$(dbname)?retryWrites=true&w=majority
          AWS_ACCESS_ID=$(AWS_ACCESS_ID)
          AWS_SECRET_KEY=$(AWS_SECRET_KEY)
          AWS_REGION=$(AWS_REGION)
          S3_BUCKET_NAME=$(S3_BUCKET_NAME)
          GOOGLE_APPLICATION_CREDENTIALS=$(GOOGLE_APPLICATION_CREDENTIALS)
        action: 'Build services'

This is my Dockerfile

FROM node:12-alpine 

EXPOSE 8080

WORKDIR /usr/src/app 

COPY package*.json ./

RUN npm install --silent 

COPY . .

CMD [ "npm", "run", "debug" ]

This is my docker-compose-prod.yml

version: '3.7'

services:
  api:
    container_name: 'saaga-api'
    restart: 'always'
    build:
      context: .
      dockerfile: 'Dockerfile.prod'
    volumes:
      # - /usr/src/app/node_modules
      - '.:/usr/src/app'
    environment:
      NODE_ENV: production
      ORIGIN: 'https://myapp.azurewebsites.net'
      PORT: 8080
      DATABASE_URL: ${DATABASE_URL}
      AWS_ACCESS_ID: ${AWS_ACCESS_ID}
      AWS_SECRET_KEY: ${AWS_SECRET_KEY}
      AWS_REGION: ${AWS_REGION}
      S3_BUCKET_NAME: ${S3_BUCKET_NAME}
      GOOGLE_APPLICATION_CREDENTIALS: ${GOOGLE_APPLICATION_CREDENTIALS}
    ports:
      - 8080:8080
      - 9229:9229
    links:
      - db
  db:
    container_name: 'mongodb'
    image: 'mongo'
    ports:
      - 27017:27017

Someone knows what I'm missing or what I'm doing badly? The app works well for the local environment, the problem is only in production.

Copyright License：
Author:「Roberto」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/64944349/how-can-i-deploy-a-graphql-api-with-docker-compose-in-azure