memos/Home Server/Network/nginx for reverse proxy.md

[[DNS/CoreDNS|CoreDNS]]를 설정한 뒤 진행했음

# 1. Install using docker
## 1.1. Directory structure
```dirtree
- /mnt/md0/infra
    - /coredns
        - 파일 생략
    - /nginx
        - /conf.d
            - default.conf
            - locations
                - ns1.conf
        - nginx.conf
    - .env
    - compose.yml
```

## 1.2. dotenv file
 /.env
```
BASE_PATH=/mnt/md0/infra
```

## 1.3. Docker compose
/compose.yml
```yml
name: infrastructure
service:
  nginx:
    image: nginx:1.26-alpine3.20
    container_name: nginx-reverse-proxy
    restart: always
    ports:
      - 80:80
    volumes:
      - ${BASE_PATH}/nginx/nginx.conf:/etc/nginx/nginx.conf:ro
      - ${BASE_PATH}/nginx/conf.d:/etc/nginx/conf.d:ro
    networks:
      - infra
    depends_on:
      - dns

networks:
  infra:
    driver: bridge
```

# 2. nginx configuration
## 2.1. /nginx/nginx.conf
기본 설정 파일을 그대로 사용함

## 2.2. /nginx/conf.d/default.conf

```nginx
server {
    listen 80;
    server_name localhost;
    error_page 404 500 502 053 504 /50x.html;
    location = /50x.html {
        root /usr/share/nginx/html;
    }

    # 추후 다른 세팅을 쉽게 추가하기 위해 변경
    include /etc/nginx/conf.d/locations/*.conf;
}
```

## 2.3. subdomain

```nginx
server {
    listen 80;
    server_name gitea.home.server;

    location / {
        proxy_set_header    Connection         $http_connection;
        proxy_set_header    Upgrade            $http_upgrade;
        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-Proto  $scheme;
        proxy_pass http://gitea:3000;
    }
}
```

## 2.4. reload

```shell
docker exec -it nginx-reverse-proxy nginx -s reload
```