Docker 容器的端口与不在容器内的 nginx 冲突

Question

我在根目录中有一个docker-compose.yml，如下所示。就上下文而言，我有一个Ghost CMS博客，托管在一个数字海洋水滴上。我想使用Docker(一种开源评论解决方案(安装Commento，但由于我通过Cloudflare DNS路由流量，我需要在服务器端和前端端使用SSL。

然而，我通过Digital Ocean的一键Ghost设置安装了Ghost，该设置将nginx配置为我的网站的反向代理。Nginx不在容器中(安装在服务器上(。Nginx在端口80和443上侦听。当我尝试docker组合时，它显示以下错误：

Error starting userland proxy: listen tcp 0.0.0.0:443: bind: address already in use

Traefik无法在nginx的相同端口上侦听(nginx不在容器中，但安装在服务器本身上(。我如何解决这个问题，并通过SSL反向代理我的commento服务器？我的docker组成如下：

version: '3.7'
services:
proxy:
restart: always
image: traefik
command:
- "--api"
- "--entrypoints=Name:http Address::80 Redirect.EntryPoint:https"
- "--entrypoints=Name:https Address::443 TLS"
- "--defaultentrypoints=http,https"
- "--acme"
- "--acme.storage=/etc/traefik/acme/acme.json"
- "--acme.entryPoint=https"
- "--acme.httpChallenge.entryPoint=http"
- "--acme.onHostRule=true"
- "--acme.onDemand=false"
- "--acme.email=[e-mail]" # TODO: Replace with your email address
- "--docker"
- "--docker.watch"
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
- ./traefik/acme:/etc/traefik/acme
networks:
- web
ports:
- "80:80"
- "443:443"
labels:
- "traefik.enable=false"
server:
image: registry.gitlab.com/commento/commento:latest
ports:
- 8080:8080
environment:
COMMENTO_ORIGIN: https://commento.example.com # TODO: Replace commento.example.com with your domami$      COMMENTO_PORT: 8080
COMMENTO_POSTGRES: postgres://postgres:passwordexample@db:5432/commento?s$      
depends_on:
- db
networks:
- db_network
- web
db:
image: postgres
environment:
POSTGRES_DB: commento
POSTGRES_USER: postgres
POSTGRES_PASSWORD: examplepassword #TODO: Replace STRONG_PASSWORD with th$    networks:
- db_network
volumes:
- postgres_data_volume:/var/lib/postgresql/data
volumes:
postgres_data_volume:
networks:
web:
external
db_network:

以下是我在可用站点下的nginx服务器配置：

server {
listen 443 ssl http2;
listen [::]:443 ssl http2;
server_name example.com;
root /var/www/ghost/system/nginx-root; # Used for acme.sh SSL verification (https://acme.sh)
ssl_certificate /etc/letsencrypt/example.com/fullchain.cer;
ssl_certificate_key /etc/letsencrypt/example.com/example.com.key;
include /etc/nginx/snippets/ssl-params.conf;
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_pass http://127.0.0.1:2368;
}
location ~ /.well-known {
allow all;
}
client_max_body_size 50m;
}

抱歉，这有点新鲜。非常感谢。

Answer 1

docker-compose.yml

...
ports:
- "80:80"
- "443:443"
...

nginx/conf

...
listen 443 ssl http2;
listen [::]:443 ssl http2;
...

Nginx使用了HOST端口443，所以你不能在你的docker compose上重用它，你必须另一个免费的。