some documentation

README.md

@@ -3,3 +3,33 @@ configz
 
 Yet another ansible's playbook repository
 
+roles
+======
+
+* common
+ * provides common configuration
+* mail
+ * provides a mail service for a given domain name and the vdomain capability for other domains.
+* mariadb
+ * provides a mariadb lambda server peered on 127.0.0.1:3306 with root mysql password on ``~/.my.cnf`` 
+
+example host file
+===== 
+
+```yaml
+
+---
+admin_ssh_keys: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDZXK3ufonx+zNQ1x6cSWuUWckB/xf9sKZ+mRgY5SPXzqrxSkqNSmr9JQ6xzvhxKEVcFWsi50op1WWtRo3HG3p3+EHKXeCyzt5QnczDlVOoQbB8kgI0byKcvXux1inL4/Q4DbVLUbDFnynD/C5aAyYMYePahMxR+AQr60DD+7Ty6pcEVih1wwHIlxWziY1EF6sEzQwz/PiTxWIZkKHl/WPGagS9Pp/5nQfdZy0AS/JqbzNyMEg51+XedADuqseV4GXDzrzDYLJXJFv1PFVJxRWLrjChKrUMqyszUySkZMr5YSPXlsV0bi+0xivYEsXvIkLORV96JTZosYbV+0aFKDPv root@debian
+default_packages_debian: htop
+description: machine test
+ntp_server1: 0.pool.ntp.org
+ntp_server2: 1.pool.ntp.org
+disable_ipv6: true
+domain: test.net
+mariadb_version: 10.0
+mysql_root_password: changeme
+mysql_host: localhost
+# vim: set textwidth=0 ft=yaml:
+
+```
+