centralized_logging.md

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Centralized Logging

Logging to a central server is done through syslog. We are using papertrail to host our logs.

Application Logging

Heroku

heroku drains:add syslog://SUBDOMAIN.papertrailapp.com:PORT

Rails

Add remote_syslog_logger to :production, :staging group in Gemfile

group :production, :staging do
  gem 'remote_syslog_logger'
end

Add logger and log level to config/environments/production.rb and config/environments/staging.rb

config.logger = RemoteSyslogLogger.new('SUBDOMAIN.papertrailapp.com', PORT, program: "rails-#{Rails.application.class.name.split('::').first}")
config.logger.level = Logger::Severity::INFO

Server Logging

As root edit /etc/rsyslog.conf Add the following line:

*.*    @SUBDOMAIN.papertrailapp.com:PORT

once you have added that restart the syslog process

service rsyslog restart

Checking logs

Log into https://papertrailapp.com Select system Optionally “Create Group” and select a system filter (or systems individually)