add apache conf file

Signed-off-by: frederic.descamps <frederic.descamps@percona.com>
add link between conf available and enabled for apache in debian

Signed-off-by: frederic.descamps <frederic.descamps@percona.com>
add template

Signed-off-by: frederic.descamps <frederic.descamps@percona.com>
syntax error

Signed-off-by: frederic.descamps <frederic.descamps@percona.com>