Infra Basics: What is a web server?

Command to run

nginx -p `pwd`/ -c nginx.conf

nginx.conf

worker_processes  1;

daemon off;
# ^ this ensures your server stays attached to your terminal
#   you don't want this normally

error_log /dev/stdout info;
# ^ this attaches errors to stderr, also not normally wanted

events {
    worker_connections 1024;
}

http {
    access_log /dev/stdout;
    # ^ this attaches access logs to stdout, also not wanted normally

    server {
        listen 80 default_server;
        root .;
        index index.html;
        server_name hellonode;

        location ^~ /img/ {
                gzip on;
                expires 12h;
                add_header Cache-Control public;
        }

        location / {
                proxy_http_version 1.1;
                proxy_cache_bypass $http_upgrade;

                proxy_set_header Upgrade $http_upgrade;
                proxy_set_header Connection 'upgrade';
                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 X-Forwarded-Proto $scheme;

                proxy_pass http://localhost:5555;
        }
    }
}