Logrotate – How Does It Handle Daily Rotation?

A couple of suggestions:

• Add a logger line before and after your postrotate service call to determine whether or not the postrotate section is being activated.

• I have not worked with service much, but if it has any knobs for increasing verbosity or logging to a file, I'd remove the >/dev/null redirects (so that the verbose output is actually sent!) and try any verbosity/logging knobs available.

• You mention that the logs aren't rotated, but are there other signs that Apache was successfully reloaded? To determine this, leave out the log-rotation steps (so that your logs aren't munched up), but leave the restart in place. If some evidence of attempted restart isn't showing up in the Apache logs, then Apache isn't really being restarted. The relevant logs lines usually include something like one of these:

[notice] Graceful restart requested, doing restart

[notice] Apache configured -- resuming normal operations

• I am not familiar with Amazon's implementation of CentOS, but if apachectl is available, you could try temporarily replacing your service call with an apachectl graceful, to see if that works. (I wouldn't leave it that way, but I'd try it just to add to your diagnostic knowledge).

You can perhaps use firstaction or lastaction directives to call a shell script that tests for disk free space, and then run a delete on the oldest files.

   firstaction/endscript
          The lines between firstaction and endscript (both of which must appear on lines by themselves) are
          executed (using /bin/sh) once before all log files that match the wildcarded pattern are  rotated,
          before  prerotate  script  is  run  and  only if at least one log will actually be rotated.  These
          directives may only appear inside a log file definition. Whole pattern is passed to the script  as
          first  argument.  If  the script exits with error, no further processing is done. See also lastac-
          tion.

Update:

Here's a Stackoverflow post on the type of script you can run:

https://stackoverflow.com/questions/7523059/remove-oldest-file-in-repository