docker - nginx - certbot https 설정하기

docker 환경에서 nginx와 certbot을 띄우고  https를 적용해보자. 디렉터리 구조는 다음과 같다

 

application.yml

version: "3"

services:
  nginx:
    image: nginx
    restart: unless-stopped
    ports:
      - 80:80
      - 443:443
    volumes:
      - ./data/nginx:/etc/nginx/conf.d
      - ./data/certbot/conf:/etc/letsencrypt
      - ./data/certbot/www:/var/www/certbot
    command: "/bin/sh -c 'while :; do sleep 6h & wait $${!}; nginx -s reload; done & nginx -g \"daemon off;\"'"  

  certbot:
    image: certbot/certbot
    restart: unless-stopped
    volumes:
      - ./data/certbot/conf:/etc/letsencrypt
      - ./data/certbot/www:/var/www/certbot
    entrypoint: "/bin/sh -c 'trap exit TERM; while :; do certbot renew; sleep 12h & wait $${!}; done;'"
    depends_on:
      - nginx

- certbot에서 pem키 등 인증서 설정 관련 파일을 ./data/certbot에 생성이 된다. 따라서 해당 폴더를 volums로 공유한다.

 

init-letsencrypt.sh

if ! [ -x "$(command -v docker-compose)" ]; then
  echo 'Error: docker-compose is not installed.' >&2
  exit 1
fi

domains=(dev.partyrun.online www.dev.partyrun.online)
rsa_key_size=4096
data_path="./data/certbot"
email="phjppo0918@gmail.com" # Adding a valid address is strongly recommended
staging=1 # Set to 1 if you're testing your setup to avoid hitting request limits

if [ -d "$data_path" ]; then
  read -p "Existing data found for $domains. Continue and replace existing certificate? (y/N) " decision
  if [ "$decision" != "Y" ] && [ "$decision" != "y" ]; then
    exit
  fi
fi


if [ ! -e "$data_path/conf/options-ssl-nginx.conf" ] || [ ! -e "$data_path/conf/ssl-dhparams.pem" ]; then
  echo "### Downloading recommended TLS parameters ..."
  mkdir -p "$data_path/conf"
  curl -s https://raw.githubusercontent.com/certbot/certbot/master/certbot-nginx/certbot_nginx/_internal/tls_configs/options-ssl-nginx.conf > "$data_path/conf/options-ssl-nginx.conf"
  curl -s https://raw.githubusercontent.com/certbot/certbot/master/certbot/certbot/ssl-dhparams.pem > "$data_path/conf/ssl-dhparams.pem"
  echo
fi

echo "### Creating dummy certificate for $domains ..."
path="/etc/letsencrypt/live/$domains"
mkdir -p "$data_path/conf/live/$domains"
docker-compose run --rm --entrypoint "\
  openssl req -x509 -nodes -newkey rsa:$rsa_key_size -days 1\
    -keyout '$path/privkey.pem' \
    -out '$path/fullchain.pem' \
    -subj '/CN=localhost'" certbot
echo


echo "### Starting nginx ..."
docker-compose up --force-recreate -d nginx
echo

echo "### Deleting dummy certificate for $domains ..."
docker-compose run --rm --entrypoint "\
  rm -Rf /etc/letsencrypt/live/$domains && \
  rm -Rf /etc/letsencrypt/archive/$domains && \
  rm -Rf /etc/letsencrypt/renewal/$domains.conf" certbot
echo


echo "### Requesting Let's Encrypt certificate for $domains ..."
#Join $domains to -d args
domain_args=""
for domain in "${domains[@]}"; do
  domain_args="$domain_args -d $domain"
done

# Select appropriate email arg
case "$email" in
  "") email_arg="--register-unsafely-without-email" ;;
  *) email_arg="--email $email" ;;
esac

# Enable staging mode if needed
if [ $staging != "0" ]; then staging_arg="--staging"; fi

docker-compose run --rm --entrypoint "\
  certbot certonly --webroot -w /var/www/certbot \
    $staging_arg \
    $email_arg \
    $domain_args \
    --rsa-key-size $rsa_key_size \
    --agree-tos \
    --force-renewal" certbot
echo

echo "### Reloading nginx ..."
docker-compose exec nginx nginx -s reload

위 변수로 본인 도메인, 루트 디렉터리, 이메일을 입력한다.

인증서 생성에 제한이 있으니 초기 테스트시에는 staging을 1로 설정하자

 

app.conf

server {
    listen 80;
    listen [::]:80;
    server_name <도메인명>;
    server_tokens off;

    location /.well-known/acme-challenge/ {
        allow all;
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 ssl;
    server_name <도메인명>;
    server_tokens off;

    ssl_certificate /etc/letsencrypt/live/<도메인명>/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/<도메인명>/privkey.pem;
    include /etc/letsencrypt/options-ssl-nginx.conf;
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;

   location /api/ { # 이 부분은 api라는 uri로 통신 시 백엔드에 프록시 처리를 하기 위함
      proxy_redirect     off;
      proxy_set_header   Host $host;
      proxy_set_header   X-Real-IP $remote_addr;
      proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header   X-Forwarded-Host $server_name;
    }

    location /api/auth {
        proxy_pass http://authentication:8080;
    }

    location /api/waiting {
        proxy_pass http://matching:8080;
    }

    location /api/matching {
        proxy_pass http://matching:8080;
    }

    location /api/battle {
        proxy_pass http://battle:8080;
    }
}

nginx.conf에 도메인명을 입력해주면 끝!

https://pentacent.medium.com/nginx-and-lets-encrypt-with-docker-in-less-than-5-minutes-b4b8a60d3a71

Nginx and Let’s Encrypt with Docker in Less Than 5 Minutes

https://github.com/wmnnd/nginx-certbot

GitHub - wmnnd/nginx-certbot: Boilerplate configuration for nginx and certbot with docker-compose