I can't access running docker container on the browser

General
1

Hi I have 3 containers running from the same image but different start command.

I can only access two on the browser but I can’t access the main app on the browser

Note: I entered into the container and used curl to access the app. It returned the hello word, which means the container is running

This is the docker file below, I exposed the three ports. The can access the second and third port on the browser but not the first one.

FROM node:19-bullseye

# ARG NODE_ENV=production
# ENV NODE_ENV $NODE_ENV

USER node

WORKDIR /app

COPY --chown=node:node package*.json ./

RUN npm ci && npm cache clean --force

# ENV PATH /opt/node_app/node_modules/.bin:$PATH

COPY --chown=node:node . .

RUN npm run build

EXPOSE 6000
EXPOSE 3001 
EXPOSE 3002

CMD ["nest", "start"]

Below is the compose file

  app:
    image: vickysomtee/schoolable
    command: node dist/src/main.js
    ports:
      - 6000:6000
    environment:
      <<: [*default-environment]
    deploy:
      replicas: 1
    volumes:
      - ./:/app
      - /app/node_modules
    networks:
      - traefik_public

  worker:
    image: vickysomtee/schoolable
    command: node dist/src/worker.js
    ports:
      - 3001:3001
    environment:
      <<: [*default-environment]
    deploy:
      replicas: 1
    volumes:
      - ./:/app
      - /app/node_modules
    networks:
      - traefik_public

  lqueue:
    image: vickysomtee/schoolable
    command: node dist/src/ledger-queue.js
    ports:
      - 3002:3002
    environment:
      <<: [*default-environment]
    deploy:
      replicas: 1
    volumes:
      - ./:/app
      - /app/node_modules
    networks:
      - traefik_public