refactor: app deployment

backend/backend/Dockerfile

@@ -1,13 +1,14 @@
-FROM registry.gitlab.com/openstapps/projectmanagement/node
+FROM openstapps:workspace as pruned
 
 USER root
-RUN apk add --update python3 py3-pip make g++
+RUN pnpm --filter @openstapps/backend --prod deploy /pruned
+
+FROM registry.gitlab.com/openstapps/projectmanagement/node:v18
 
 USER node
-ADD --chown=node:node . /app
-WORKDIR /app
-RUN npm ci && npm run build
+ENV NODE_ENV=production
+
+COPY --chown=node:node --from=pruned pruned .
 
 EXPOSE 3000
-
-CMD ["node", "app"]
+ENTRYPOINT ["node", "app.js"]