Nginx Configuration running PHP7.0-FPM Fast CGI with phpmyadmin and MySQL, Reverse proxy with NodeJS application

default.conf

server {

	listen 80 default_server;
	server_name dev ipv6only=on;

	root /usr/share/nginx/html;
	index index.php index.html index.htm;

	location ~ \.php$ {

		try_files $uri =404;
		fastcgi_split_path_info ^(.+\.php)(/.+)$;
		fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
		fastcgi_index index.php;
		fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		include fastcgi_params;
	}

	location /phpmyadmin {


		auth_basic "Restricted Content";
		auth_basic_user_file /etc/nginx/.htpasswd;
		root /usr/share/nginx/html;
		index index.php index.html index.htm;

		location ~ \.php$ {

			try_files $uri =404;
			fastcgi_split_path_info ^(.+\.php)(/.+)$;
			fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
			fastcgi_index index.php;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
			include fastcgi_params;
		}

	}

	location /mynodeapp {

		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		proxy_set_header Host $http_host;
		proxy_set_header X-NginX-Proxy true;
		proxy_http_version 1.1;
		proxy_set_header Upgrade $http_upgrade;
		proxy_set_header Connection "upgrade";
		proxy_max_temp_file_size 0;
		proxy_pass http://mynodeapp;
		# ex: http://localhost:3000
		proxy_redirect off;
		proxy_read_timeout 240s;
	}


	error_page 500 502 503 504 /50x.html;
	location = /50x.html {

		root /usr/share/nginx/html;
	}

	location ~ /\.ht {

		deny all;
	}
}