Since Apache HTTPD does not have any built-in log rotation capability,
we need `logrotate`. Somewhere along the line, the *logrotate* package
stopped being installed by default. Additionally, with Fedora 30, it
changed from including a drop-in file for (Ana)cron to providing a
systemd timer unit.
The *logrotate* role will ensure that the *logrotate* package is
installed, and that the *logrotate.timer* service is enabled and
running. This in turn will ensure that `logrotate` runs daily. Of
course, since the systemd units were added in Fedora 30, machines to
which this role is applied must be running at least that version.
By listing the *logrotate* role as a dependency of the *httpd* role, we
can ensure that `logrotate` manages the Apache error and access log
files on any server that runs Apache HTTPD.
Dustin