Set two variable files from site.yml

That way we can override all the config from a central location. The
`user.yml` file overrides `defaults.yml`. `user.yml` was added to
`.gitignore` in order to allow a user to change it without having to
worry about merges. It's easy to do a diff to see what changed between
the defaults and your own settings.

Needs documentation, this is just a proposal.

Refs #39

.gitignore

@@ -0,0 +1 @@
+/vars/user.yml

site.yml

@@ -5,6 +5,9 @@
   user: deploy
   sudo: True
   gather_facts: False
+  vars_files:
+    - vars/defaults.yml
+    - vars/user.yml
 
   roles:
     - common

vars/defaults.yml

@@ -0,0 +1,63 @@
+---
+# roles/blog/vars/main.yml
+blog_domain: TODO.com
+
+# roles/common/vars/main.yml
+main_user_name: TODO
+admin_email: TODO@TODO.com
+encfs_password: TODO
+
+# roles/ircbouncer/vars/main.yml
+znc_version: 1.0
+
+# roles/mailserver/vars/main.yml
+mail_server_hostname: mail.TODO.com
+mail_mysql_username: mailuser
+mail_mysql_password: TODO
+mail_mysql_database: mailserver
+mail_virtual_domains:
+  - name: TODO
+    pk_id: 1
+    primary_user: TODO
+  - name: TODO
+    pk_id: 2
+    primary_user: TODO
+mail_virtual_users:
+  - address: TODO@TODO.com
+    password_hash: TODO
+    domain_pk_id: 1
+  - address: TODO@TODO.com
+    password_hash: TODO@TODO.com
+    domain_pk_id: 2
+mail_virtual_aliases:
+  - source: root@TODO.com
+    destination: TODO@TODO.com
+    domain_pk_id: 1
+  - source: postmaster@TODO.com
+    destination: TODO@TODO.com
+    domain_pk_id: 1
+
+# roles/monitoring/vars/main.yml
+
+
+# roles/owncloud/vars/main.yml
+owncloud_domain: cloud.TODO.com
+owncloud_mysql_username: owncloud
+owncloud_mysql_password: TODO
+owncloud_mysql_database: owncloud
+
+# roles/tarsnap/vars/main.yml
+tarsnap_version: 1.0.35
+
+# roles/vpn/vars/main.yml
+key_country: TODO
+key_province: TODO
+key_city: TODO
+key_org: TODO
+key_email: TODO
+key_ou: TODO
+key_cn: TODO
+key_name: TODO
+
+# roles/webmail/vars/main.yml
+webmail_domain: TODO.com

vars/user.yml

@@ -0,0 +1,63 @@
+---
+# roles/blog/vars/main.yml
+blog_domain: TODO.com
+
+# roles/common/vars/main.yml
+main_user_name: TODO
+admin_email: TODO@TODO.com
+encfs_password: TODO
+
+# roles/ircbouncer/vars/main.yml
+znc_version: 1.0
+
+# roles/mailserver/vars/main.yml
+mail_server_hostname: mail.TODO.com
+mail_mysql_username: mailuser
+mail_mysql_password: TODO
+mail_mysql_database: mailserver
+mail_virtual_domains:
+  - name: TODO
+    pk_id: 1
+    primary_user: TODO
+  - name: TODO
+    pk_id: 2
+    primary_user: TODO
+mail_virtual_users:
+  - address: TODO@TODO.com
+    password_hash: TODO
+    domain_pk_id: 1
+  - address: TODO@TODO.com
+    password_hash: TODO@TODO.com
+    domain_pk_id: 2
+mail_virtual_aliases:
+  - source: root@TODO.com
+    destination: TODO@TODO.com
+    domain_pk_id: 1
+  - source: postmaster@TODO.com
+    destination: TODO@TODO.com
+    domain_pk_id: 1
+
+# roles/monitoring/vars/main.yml
+
+
+# roles/owncloud/vars/main.yml
+owncloud_domain: cloud.TODO.com
+owncloud_mysql_username: owncloud
+owncloud_mysql_password: TODO
+owncloud_mysql_database: owncloud
+
+# roles/tarsnap/vars/main.yml
+tarsnap_version: 1.0.35
+
+# roles/vpn/vars/main.yml
+key_country: TODO
+key_province: TODO
+key_city: TODO
+key_org: TODO
+key_email: TODO
+key_ou: TODO
+key_cn: TODO
+key_name: TODO
+
+# roles/webmail/vars/main.yml
+webmail_domain: TODO.com