feat(nginx): base config file

nginx/etc/nginx/templates/00-main.conf.template

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+# Run as a unique, less privileged user for security reasons.
+# user www-data www-data; # user group
+user nginx;
+
+# The file storing the process ID of the main process
+pid /var/run/nginx.pid;
+
+# Reduces timer resolution in worker processes, thus reducing the number of gettimeofday() system calls made. By default, gettimeofday() is called each time a kernel event is received. With reduced resolution, gettimeofday() is only called once per specified interval.
+timer_resolution 100ms;
+
+# Defines named thread pools used for multi-threaded reading and sending of files without blocking worker processes.
+thread_pool default threads=32 max_queue=65536;

nginx/etc/nginx/templates/10-event.conf.template

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+events {
+  # Specifies the connection processing method to use (https://nginx.org/en/docs/events.html).
+  # There is normally no need to specify it explicitly, because nginx will by default use the most efficient method.
+  # use epoll;
+
+  # Sets the maximum number of simultaneous connections that can be opened by a worker process.
+  # Should be < worker_rlimit_nofile.
+  worker_connections $NGINX_WORKER_CONNECTIONS;
+
+  # accept as many connections as possible, may flood worker connections if set too low -- for testing environment
+  # multi_accept on;
+}

nginx/etc/nginx/templates/20-http-include.conf.template

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+http {
+  include /etc/nginx/conf.d/http.d/*.conf;
+  include /etc/nginx/conf.d/server.d/*.conf;
+}