Logging.txt

#NGINX Logs:- Two Types
#Access Logs and Error Logs

#Access Logs:-the files that contain information related to the tasks performed by the NGINX server will be logged.
#Errror Logs:-the files that contanin information about errors will be logged.

#Important NGINX access log fields:-
#remote_addr: The IP address of the client that requested the resource
#http_user_agent: The user agent in use that sent the request
#time_local: The local time zone of the server
#request: What resource was requested by the client (an API path or any file)
#status: The status code of the response
#body_bytes_sent: The size of the response in bytes
#request_time: The total time spent processing the request
#remote_user: Information about the user making the request

#NGINX Error Log Levels(Based on degree of severity and verbosity):
#1)emerg
#2)alert
#3)crit
#4)error
#5)warn
#6)notice
#7)info
#8)debug

http {
	#------------------------------------------------------------------------------------------
	#ACCESS LOGS
	
	#Enabling access logs(By Default it is enabled)
	#syntax:- access_log path [format [buffer=size] [gzip[=level]] [flush=time] [if=condition]]
	access_log /log/nginx/access.log main;
	
	#Disabling access logs
	access_log off;
	
	# main format is equvivalent to to the following configuration
	# log_format main'$remote_addr - $remote_user [$time_local] '
        #              '"$request" $status $body_bytes_sent '
        #              '"$http_referer" "$http_user_agent"';

	
	#Setting NGINX custom log foramt

	log_format  custom '$remote_addr - $remote_user [$time_local] '
                         	     '"$request" $status $body_bytes_sent '
                      		     '"$http_referer" "$http_user_agent" '
                     		     '"$http_x_forwarded_for" $request_id '
                   		     '$geoip_country_name $geoip_country_code '
                  		     '$geoip_region_name $geoip_city ';


	#Formatting the logs as JSON(Using escape=json setting)

	log_format format_name escape=json
	'{'
	'"time_local":"$time_local",'
	'"remote_addr":"$remote_addr",'
    	'"remote_user":"$remote_user",'
    	'"request":"$request",'
    	'"status": "$status"'
	'}';
	
	#-----------------------------------------------------------------------------------------
	#ERROR LOGS

	#Configuration
	#Syntax:- error_log log_file_location log_level;
	#Log file location by dafault:-  /var/log/nginx/error.log
	
	
	#Logging to Multiple Files
	
	error_log /var/log/nginx/error.info warn # This will instruct Nginx to log all messages of type warn and more severe log level crit, alert, and emerg messages.
	error_log /var/log/nginx/error.crit crit;

	#Disabling Error Logs
	error_log off;

	#-----------------------------------------------------------------------------------------
	#NGINX access log configuration can be overriden by another configuration at a lower level
	#Eg:-
	#http {
  	#access_log  /var/log/nginx/access.log  main;
  	#server {
    	#	listen 8000;
    	#	location /health {
      	#	access_log off; # Any calls to /health will not be logged.
      	#	proxy_pass http://app1server;
    	#	}
  	#    }
	#}

	#-----------------------------------------------------------------------------------------
	
	
	
    server {
        listen       8080;
        server_name  somename  alias  another.alias;

       location / {
            proxy_pass http://localhost:8000/health;
        }
    }

}

events{ }