Kong Gateway does not provide a built-in option to output its logs as JSON objects.
Configuring Kong Gateway to output logs as JSON objects
Uses:
Kong Gateway
TL;DR
Can Kong Gateway expose the logs as JSON objects?
Kong doesn’t have a setting to change the Nginx error_log format, but you can get JSON access logs using the tcp-log or http-log plugins, or by defining a custom Nginx log_format (e.g. json_logs) in a custom Nginx template and setting proxy_access_log to use it.
Solution
Kong logs are based on the Nginx logging functionality.
There is no option to change the Nginx error_log format.
For access_log, there are options to use Kong Logging plugins to send JSON events using the tcp-log or http-log plugins.
Or using a custom Nginx template (/usr/local/share/lua/5.1/kong/templates/nginx.lua).
And using log_format json_logs similar to:
log_format json_logs escape=json
'{'
'"time_local":"$time_local",'
'"remote_addr":"$remote_addr",'
'"remote_user":"$remote_user",'
'"request":"$request",'
'"status": "$status",'
'"body_bytes_sent":"$body_bytes_sent",'
'"request_time":"$request_time",'
'"http_referrer":"$http_referer",'
'"http_user_agent":"$http_user_agent"'
'}';And then configure:
proxy_access_log=logs/access.log json_logs