vm-ansible/roles/webserver/templates/nginx.conf

# {{ansible_managed}}
user www-data;
worker_processes auto;
pid /run/nginx.pid;
include /etc/nginx/modules-enabled/*.conf;

events {
        worker_connections 768;
        multi_accept on;
}

http {

        sendfile on;
        tcp_nopush on;
        tcp_nodelay on;
        keepalive_timeout 65;
        types_hash_max_size 2048;

        server_names_hash_bucket_size 64;

        include /etc/nginx/mime.types;
        default_type application/octet-stream;

        ssl_protocols TLSv1.2 TLSv1.3;
        ssl_prefer_server_ciphers on;

        access_log /var/log/nginx/access.log;
        error_log /var/log/nginx/error.log;

        gzip on;

        gzip_vary on;
        gzip_proxied any;
        gzip_comp_level 6;
        gzip_buffers 16 8k;
        gzip_http_version 1.1;
        gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

        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    Upgrade $http_upgrade;
	    proxy_set_header    Connection $http_connection;
        client_body_buffer_size 128k;
        proxy_connect_timeout   90;
        proxy_send_timeout 120;
        proxy_read_timeout 300;
        proxy_buffer_size          128k;
        proxy_buffers              4 256k;
        proxy_busy_buffers_size    256k;
        proxy_buffering    off;
        proxy_request_buffering off;
        server_tokens off;

        server {

            listen 80 default_server;
            listen [::]:80 default_server;
            server_name _;
            return 301 https://$host$request_uri;
        }

        {%- for server in webserver %}
        server {
            listen 443 ssl http2;
            listen [::]:443 ssl http2;
            server_name {{ server.domain }};
            ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem;
            ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;
            {% if server.bigrequests -%}
            client_max_body_size    8G;
            {% endif -%}
            location /{
                {% if server.https %}
                proxy_pass  https://127.0.0.1:{{ server.port }};
                {% else %}
                proxy_pass  http://127.0.0.1:{{ server.port }};
                {% endif %}
            }
            location /metrics{
                {%- if server.https %}
                proxy_pass  https://127.0.0.1:{{ server.port }};
                {% else %}
                proxy_pass  http://127.0.0.1:{{ server.port }};
                {% endif %}
 	            allow 192.168.69.0/24;
 	            deny all;
            }
            {% if server.additionallocations is defined %}
            {% for location in server.additionallocations %}
            location {{location.location}}{
                {% if location.https %}
                proxy_pass  https://127.0.0.1:{{ location.port }};
                {% else %}
                proxy_pass  http://127.0.0.1:{{ location.port }};
                {% endif %}
            }
            {% endfor -%}
            {% endif %}
        }

        {%- endfor -%}

        server {
            listen 8888;
            
            location /stub_status {
                stub_status;
 	            allow 127.0.0.1;
 	            deny all;		
            }
        }
}