# openvisorwebsite-dockerized/Dockerfile
# https://git.openvisor.ch/OpenVisor/OpenVisor-Website/Dockerfile

# BUILD STAGE
FROM node:22.1.0-alpine3.19 as build-stage

WORKDIR /app

# add files that describe which dependencies are required
COPY package*.json ./

# install dependencies required to build the web application
RUN npm install

# add resources required to build the web application
COPY . .

# build the web application
RUN npm run build


# PRODUCTION STAGE
FROM nginx:1.26.0-alpine3.19 as production-stage

# use custom error code websites instead
RUN rm -f /usr/share/nginx/html/50x.html

# update default.conf nginx file with necessary try_files statement
RUN rm -f /etc/nginx/conf.d/default.conf
COPY --chown=nginx:nginx ./default.conf /etc/nginx/conf.d/default.conf

# enable the nginx user to be able to launch the web application, so root is not required
RUN  touch /var/run/nginx.pid && \
     chown -R nginx:nginx /var/cache/nginx /var/run/nginx.pid
USER nginx
COPY --chown=nginx:nginx ./default.conf /etc/nginx/conf.d/default.conf

# add the previously built web application
COPY --chown=www-data:www-data --from=build-stage /app/dist /usr/share/nginx/html

EXPOSE 80

# check every minute whether the website is still locally reachable; if not, the docker process displays "unhealthy"
HEALTHCHECK --interval=1m CMD wget --no-verbose --tries=1 http://localhost:80 -q -O /dev/null || exit 1

# runs nginx in the foreground which means the docker container only runs as long as nginx is running (good practice)
CMD ["nginx", "-g", "daemon off;"]