[fuel-library] Non-flexible log rotation procedure

[slava valyavskiy]

Now, our log rotation approach is based on https://github.com/stackforge/fuel-library/blob/master/deployment/puppet/openstack/templates/20-fuel.conf.erb template file. Here we have 'size' option.

size size
              Log files are rotated only if they grow bigger then size bytes.

It means that our log files will be rotated only if its size bigger then 'size' value.

I propose to add 'daily' rotation option (to have logs rotated every day) and replace 'size' option with 'maxsize' and 'minsize' options.

minsize size
              Log files are rotated when they grow bigger than size bytes,
              but not before the additionally specified time interval (daily,
              weekly, monthly, or yearly).

maxsize size
              Log files are rotated when they grow bigger than size bytes even before
              the additionally specified time interval (daily, weekly, monthly,
              or yearly).

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/167720

[OpenStack Infra (hudson-openstack)]

Change abandoned by Valyavskiy Viacheslav (<email address hidden>) on branch: master
Review: https://review.openstack.org/167720