Nginx 四级域名通配符重定向

Question

我目前正在https我的域名的二级和三级上提供服务（通配符），并将所有http流量重定向到https这些。现在我想为 4 级子域名提供服务http 仅有的，因为我无法以以下形式获取任何域的证书*.*.example.com

# Now
example.com -> https: 
*.example.com -> https:
# What I want
*.*.example.com -> http:

我尝试了以下配置，但它仍然重定向到 https。.example.com：

server {
    listen 80;
    listen [::]:80;
    server_name example.com *.example.com;
    include /etc/nginx/headers.conf;
        location / {
                return 301 https://$host$request_uri;
        }

    access_log off;
}

server {
    listen 80;
    listen [::]:80;
    server_name *.*.example.com;
    include /etc/nginx/headers.conf;
        location / {
                proxy_pass http://127.0.0.1:8087/;
                proxy_set_header Host $host;
        }
        access_log off;
}

server {
        server_name example.com *.example.com;
        listen 443 ssl http2;
        listen [::]:443 ssl http2;
        ssl_certificate /cert.pem;
        ssl_certificate_key /key.pem;
        include /etc/nginx/headers.conf;
        location / {
                proxy_pass http://127.0.0.1:8087/;
                proxy_set_header Host $host;
        }
        access_log off;
}

编辑：优先级不相关。PCRE 正在运行。