0

One of the things that I am investigating is using the dateext option for logrotate. However if I understood things correctly apache will keep writing to the files access.log and error.log.

I was wondering if there was a way to have apache log to a file access.log.YYYYMMDD and error.log.YYYYMMDD instead? Where YYYYMMDD would be the timestamp when the file was created.

1

Apache comes with rotatelogs which does exactly what you're looking for.

CustomLog "|/usr/bin/rotatelogs -l /var/logs/apache2/access.log.%Y%m%d 86400" combined
ErrorLog "|/usr/bin/rotatelogs -l /var/logs/apache2/error.log.%Y%m%d 86400"

Or you can write your own small script that does this. Apache than pipes it's log to that script's STDIN again using the following syntax

CustomLog |/path/to/logger.pl combined

Your script reads the log lines on STDIN and writes them to a logfile which name you can choose and change freely.

The script could look something like this

#!/usr/bin/perl
use warnings;
use strict;
use Time::Local;
use IO::Handle;

my $logfilePrefix = '/var/log/apache2/access.log.';
my $rotateAt;

openLog();

while(my $l = <STDIN>)
{
  reopenLog() if(time() >= $rotateAt);
  print LOG $l;
}

close(LOG);
exit 0;

sub openLog
{
  my ($day, $month, $year) = (localtime)[3,4,5];
  my $logfile = $logfilePrefix.sprintf("%04d%02d%02d", $year+1900, $month+1, $day);
  $rotateAt = timelocal(0, 0, 0, (localtime(time() + 86400))[3,4,5]);
  open(LOG, ">> $logfile") || die "couldn't write to $logfile: $!\n";
  LOG->autoflush(1);
}

sub reopenLog
{
  close(LOG);
  openLog();
}

Further reading: http://httpd.apache.org/docs/2.2/logs.html#piped

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.