default.conf

server {
  listen 9000 default_server;
  server_name localhost;

  location / {
    root /var/www/html;
    try_files $uri $uri/ /index.html;
  }
}

Dockerfile

# build stage
FROM node:12.16.1-alpine as build-stage

WORKDIR /app

# add `/app/node_modules/.bin` to $PATH
ENV PATH /app/node_modules/.bin:$PATH

COPY package.json package-lock.json* ./
RUN npm install

COPY . .

RUN npm run build

# production stage
FROM nginx:1.17.8-alpine as production-stage

COPY devops/docker/nginx.conf /etc/nginx/nginx.conf
COPY devops/docker/default.conf /etc/nginx/conf.d/default.conf
COPY --from=build-stage /app/dist /var/www/html
COPY start.sh /usr/local/bin/start.sh

EXPOSE 9000
CMD ["start.sh"]

nginx.conf

user  nginx;
worker_processes  1;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
  worker_connections  1024;
}

http {
  include       /etc/nginx/mime.types;
  default_type  application/octet-stream;
  sendfile        off;
  keepalive_timeout  60;
  include /etc/nginx/conf.d/*.conf;

  # gzip settings
	gzip on;
	gzip_disable "msie6";
	gzip_vary on;
	gzip_proxied any;
	gzip_comp_level 6;
	gzip_buffers 32 16k;
	gzip_http_version 1.1;
	gzip_min_length 250;
	gzip_types image/jpeg image/bmp image/svg+xml text/plain text/css application/json application/javascript application/x-javascript text/xml application/xml application/xml+rss text/javascript image/x-icon;
}

start.sh

#!/usr/bin/env sh
set -e

nginx -g 'daemon off;'