Add rsnapshot backup server playbook

.gitignore

@@ -2,6 +2,7 @@
 .playbook
 /*.yml
 /*.yaml
+!backup.yml
 !moxie.yml
 !docker.yml
 !dockerbox.yml

backup.yml

@@ -0,0 +1,21 @@
+# Copyright (C) 2021  Kris Lamoureux
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, version 3 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+- name: Install Backup Server
+  hosts: backup
+  become: true
+  roles:
+    - base
+    - rsnapshot
+