Updated prod dockerfile

Author: hkirat

Dockerfile.prod

@@ -4,12 +4,11 @@ ARG DATABASE_URL
 WORKDIR /usr/src/app
 
 COPY . .
-RUN yarn install
-RUN cd packages/db && DATABASE_URL=$DATABASE_URL npx prisma generate && cd ../..
-ENV DATABASE_URL=$DATABASE_URL
-RUN yarn build
 
-EXPOSE 3000
+RUN npm install
+RUN DATABASE_URL=$DATABASE_URL npx prisma generate
+RUN DATABASE_URL=$DATABASE_URL npm run build
 
-CMD ["npm", "run", "start"]
+EXPOSE 3000
 
+CMD ["npm", "run", "start"]