Deploy nginx and autoconfig XML

deploy-chatmail/src/deploy_chatmail/nginx.conf.j2

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+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+error_log /var/log/nginx/error.log;
+
+events {
+	worker_connections 768;
+	# multi_accept on;
+}
+
+http {
+	sendfile on;
+	tcp_nopush on;
+
+	# Do not emit nginx version on error pages.
+	server_tokens off;
+
+	include /etc/nginx/mime.types;
+	default_type application/octet-stream;
+
+	ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
+	ssl_prefer_server_ciphers on;
+	ssl_certificate /var/lib/acme/live/{{ config.domain_name }}/fullchain;
+	ssl_certificate_key /var/lib/acme/live/{{ config.domain_name }}/privkey;
+
+	gzip on;
+
+	server {
+		listen 80 default_server;
+		listen [::]:80 default_server;
+		listen 443 ssl default_server;
+		listen [::]:443 ssl default_server;
+
+		root /var/www/html;
+
+		index index.html index.htm;
+
+		server_name _;
+
+		location / {
+			# First attempt to serve request as file, then
+			# as directory, then fall back to displaying a 404.
+			try_files $uri $uri/ =404;
+		}
+	}
+}
+