docker - Nginx 无法在 docker 容器中加载证书

Question

因此，我尝试在 docker 容器中使用带有 certbot 证书的 nginx，但即使该文件存在，我也会收到此错误。

2022/10/07 11:08:47 [emerg] 15#15: cannot load certificate "/etc/nginx/certs/fullchain.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/nginx/certs/fullchain.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: [emerg] cannot load certificate "/etc/nginx/certs/fullchain.pem": BIO_new_file() failed (SSL: error:02001002:system library:fopen:No such file or directory:fopen('/etc/nginx/certs/fullchain.pem','r') error:2006D080:BIO routines:BIO_new_file:no such file)
nginx: configuration file /etc/nginx/nginx.conf test failed

证书是在 docker 容器外部生成的，并安装到 nginx 中(所以我可能做错了)。

nginx:
    container_name: best-nginx
    build:
      context: .
    restart: always
    image: nginx:alpine
    volumes:
      - ./nginx/default.conf:/etc/nginx/conf.d/default.conf
      - /etc/letsencrypt/live/mycerts:/etc/nginx/certs
    ports:
      - "443:443"

默认.conf

server {
    root /usr/share/nginx/html;
    index index.html index.htm index.nginx-debian.html;

    server_name myservername.com;

    location / {
            try_files $uri $uri/ =404;
    }

    location /keycloak {
            proxy_pass http://localhost:28080/;
    }

    listen [::]:443 ssl ipv6only=on; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/nginx/certs/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/nginx/certs/privkey.pem; # managed by Certbot
}

Dockerfile

# develop stage
FROM node:18-alpine as develop-stage
WORKDIR /app
COPY package*.json ./
COPY tsconfig.json ./
RUN npm install
COPY ./public ./public
COPY ./src ./src

# build stage
FROM develop-stage as build-stage
RUN npm run build

# production stage
FROM nginx:1.23.1-alpine as production-stage
COPY --from=build-stage /app/build /usr/share/nginx/html
CMD ["nginx", "-g", "daemon off;"]

我观察到 certbot 生成了 4 个文件，而我在 default.conf 中只使用了 2 个文件

这可能是我问题的根源吗？

谢谢。

//编辑: 这些文件存在于/etc/letsencrypt/live/mycerts 中，但如果没有 root 访问权限，我无法访问 live/mycerts 。所以我认为它们的映射可能很奇怪？

这是 docker 容器中/etc/nginx/certs 中的 ls -la，它们看起来有点奇怪。

lrwxrwxrwx    1 root     root            45 Oct  7 10:20 cert.pem -> ../../archive/mycerts/cert1.pem
lrwxrwxrwx    1 root     root            46 Oct  7 10:20 chain.pem -> ../../archive/mycerts/chain1.pem
lrwxrwxrwx    1 root     root            50 Oct  7 10:20 fullchain.pem -> ../../archive/mycerts/fullchain1.pem
lrwxrwxrwx    1 root     root            48 Oct  7 10:20 privkey.pem -> ../../archive/mycerts/privkey1.pem

Answer 1

您正在安装一个带有符号链接(symbolic link)的文件夹，在您的容器中，您将获得指向同一位置的符号链接(symbolic link)，而不是真正的文件。

因此，要么安装一个包含真实证书文件的目录推荐

或挂载archive/mycerts:/etc，以便符号链接(symbolic link)指向容器内的真实文件不推荐