Add README for fail2ban

+ Remove redundant playbooks

ansible/roles/fail2ban/files/fail2ban/filter.d/common.conf

@@ -54,7 +54,7 @@ __date_ambit = (?:\[\])
 #
 #      [bsdverbose]? [hostname] [vserver tag] daemon_id spaces
 #
-# This can be optional (for instance if we match named native log files)
+# This can be optional (for getInstance if we match named native log files)
 __prefix_line = %(__date_ambit)s?\s*(?:%(__bsd_syslog_verbose)s\s+)?(?:%(__hostname)s\s+)?(?:%(__kernel_prefix)s\s+)?(?:%(__vserver)s\s+)?(?:%(__daemon_combs_re)s\s+)?(?:%(__daemon_extra_re)s\s+)?
 
 # PAM authentication mechanism check for failures, e.g.: pam_unix, pam_sss,

ansible/roles/fail2ban/files/fail2ban/filter.d/named-refused.conf

@@ -31,7 +31,7 @@ __daemon_re=\(?%(_daemon)s(?:\(\S+\))?\)?:?
 __daemon_combs_re=(?:%(__pid_re)s?:\s+%(__daemon_re)s|%(__daemon_re)s%(__pid_re)s?:)
 
 #       hostname       daemon_id         spaces
-# this can be optional (for instance if we match named native log files)
+# this can be optional (for getInstance if we match named native log files)
 __line_prefix=(?:\s\S+ %(__daemon_combs_re)s\s+)?
 
 prefregex = ^%(__line_prefix)s( error:)?\s*client <HOST>#\S+( \([\S.]+\))?: <F-CONTENT>.+</F-CONTENT>$

ansible/roles/fail2ban/files/fail2ban/jail.local

@@ -134,10 +134,10 @@ filter = %(__name__)s[mode=%(mode)s]
 
 # Destination email address used solely for the interpolations in
 # jail.{conf,local,d/*} configuration files.
-destemail = {{ email }}
+destemail = {{ dest_email }}
 
 # Sender email address used solely for some actions
-sender = admin@bookstack
+sender = {{ sender_email }}
 
 # E-mail action. Since 0.8.1 Fail2Ban uses sendmail MTA for the
 # mailing. Change mta configuration parameter to mail if you want to