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dockerize(nginx+ssl)

Docker Hub Image: https://hub.docker.com/repository/docker/huakunshen/nginx-certbot

Demo Video on YouTube

Web App Deployment with docker, Nginx and SSL

ubuntu+nginx+certbot - Dockerfile

FROM ubuntu:18.04

RUN apt update -y \
    && apt install nginx -y \
    && apt-get install software-properties-common -y \
    && add-apt-repository ppa:certbot/certbot -y \
    && apt-get update -y \
    && apt-get install python-certbot-nginx -y \
    && apt-get clean

EXPOSE 80

STOPSIGNAL SIGTERM

CMD ["nginx", "-g", "daemon off;"]

Build with buildx

docker buildx build --push \
    --platform linux/arm64,linux/amd64,linux/386,linux/arm/v7 \
    -t huakunshen/nginx-certbot .

Nginx Configuration - default.conf

server {
        listen 80 default_server;
        listen [::]:80 default_server;
        root /var/www/html;
        index index.html index.htm index.nginx-debian.html;
        server_name domain.com www.domain.com;
        location / {
            root /var/www/html;
            try_files $uri /index.html;
        }
        location /api/ {
            proxy_pass http://server/api/;
        }
}

docker-compose.yml

version: '3.8'
services:
  server:
    image: node:12-alpine
    ports:
      - '8080:80'
    volumes:
      - ./server:/root/server
    env_file:
      - ./deploy/server.env
    entrypoint: sh /root/server/start_server.sh
  frontend:
    build:
      context: ./deploy
      dockerfile: Dockerfile
    ports:
      - '80:80'
      - '443:443'
    volumes:
      - ./frontend/build:/var/www/html
      - ./deploy/default.conf:/etc/nginx/sites-available/default
    depends_on:
      - server

Add a volume to frontend if you want to keep let's encrypt configurations and certificates after update:

  • ./letsencrypt:/etc/letsencrypt

./letsencrypt will contain the data, you won't need to setup SSL again after restarting/recreating the containers.

Deploy and Setup SSL

docker-compose up -d
docker exec -it <frontend_container> bash       # bash into the nginx container
certbot --nginx -d domain.com -d www.domain.com     # setup SSL certificate

Get Certificate without port 80 with DNS Challenge

If your server doesn't have port 80 open, the method above which uses http request for challenge won't work.

certbot certonly -a manual -d domain.com --preferred-challenges dns

After obtaining the certificate, add the path to your server configuration file.

ssl_certificate xxx.crt;
ssl_certificate_key xxx.key;