Nodejs and nginx in one container

Hi guys,

I want to build a container for my web app.
I would like to provide the frontend from my /dist folder and run the nodejs backend.
via nginx I want to handle my requests.

this is my Dockerfile:

FROM osixia/light-baseimage:1.1.1

# install node
RUN apt-get update && apt-get install curl -y
RUN curl -sL https://deb.nodesource.com/setup_6.x | bash -
RUN apt-get update && apt-get upgrade -y && apt-get install nodejs -y
RUN apt-get update && apt-get upgrade -y && \
    apt-get install -y nodejs \
    npm

# install nginx
RUN apt-get update && apt-get install -y nginx

# configure nginx
WORKDIR /etc/nginx/sites-enabled
RUN rm default
COPY default.conf .
# restart nginx
RUN service nginx restart

WORKDIR /app
COPY . .

WORKDIR /app/backend
RUN npm i

EXPOSE 8000

CMD ["npm", "start"]

everything works fine, except it seems like the ‘RUN service nginx restart‘ is not working properly as I can’t access the page after starting the container.
After accessing the container and executing ‘service nginx restart’ manually, everything works fine

Does anybody know what could be the reason for that?

best,
Kev