This page describes:
- Home directory
- System logger: syslog
- Rotate your logs with logrotate
- Mongrel logs
- Environment log file
- Nginx logs
- Nginx configuration
- Monit log
- Monit configuration
- Passenger 3 log
- Unicorn log
- Chef recipe logs
Use the following substitutions for illustration:
Username: deploy
Application name: myapp
Environment: production
Home directory
A user home directory is created for you:
/home/deploy
If you look closely, this is actually a symlink to the persistent /data device. Therefore, you can safely store items in the home directory. You will see that your home directory symlinks to:
/data/homedirs/deploy
System logger: syslog
In the syslog you find system messages, monit restart calls, cron job notifications and various other useful bits of information.
/var/log/syslog
Rotate your logs with logrotate
By default, all parts of the stack are under logrotate to properly rotate and gzip old logs. The individual configuration files are found here:
/etc/logrotate.d/
Mongrel logs
If you have mongrels, your logs exist here:
/var/log/engineyard/mongrel/myapp/
Environment log file
If you need access to the production.log you can find it here:
/data/myapp/shared/log/production.log
Nginx logs
We configure nginx to split access and error into two files:
/var/log/engineyard/nginx/myapp.access.log
/var/log/engineyard/nginx/myapp.error.log
Nginx configuration
Nginx configuration is symlinked from /data/nginx to /etc/nginx to ensure that it persists when the instance is shutdown.
/data/nginx
A configuration for your application is automatically generated and you will find it here:
/data/nginx/servers/myapp.conf
Monit log
Monit log information is sent to the system logger. See System logger: syslog above.
Monit configuration
Monit configuration files are located here:
/etc/monit.d/
If you are running a mongrel instance, you should see your monit and mongrel configurations here:
/etc/monit.d/mongrel.myapp.monitrc
When adding additional services under monit, we recommend you create a new file ending in .monitrc according to the same naming convention. For example:
sphinx.myapp.monitrc dj.myapp.monitrc
If you’d like to edit the master monit configuration, you can do so here:
/etc/monitrc
Passenger 3 log
Passenger 3 sends log information to:
/var/log/nginx/passenger.log
Unicorn log
Unicorn sends log information to three log files in the /data/myapp/current/log directory:
/data/app_name/current/log/unicorn.log/data/app_name/current/log/unicorn.stderr.log/data/app_name/current/log/unicorn.stout.log
Chef recipe logs
See Log files from Chef recipes.
If you have feedback or questions about this page, add a comment below. If you need help, submit a ticket with Engine Yard Support.
/db/mysql/log has the slow query and mysql error logs
Hey, looks like the Nginx logs are no longer contained subdirectories of the 'appname'.
So this:
/var/log/engineyard/nginx/myapp/myapp.access.log/var/log/engineyard/nginx/myapp/myapp.error.logShould be:
/var/log/engineyard/nginx/myapp.access.log/var/log/engineyard/nginx/myapp.error.logA belated thanks, Joshua. Fixed. kjm