Install zfs and sanoid

ansible/main.yml

@@ -49,3 +49,4 @@
     - contessa
     - statping
     - upload
+    - zfs

ansible/roles/zfs/files/sanoid.conf

@@ -0,0 +1,21 @@
+######################################
+# This is a sample sanoid.conf file. #
+# It should go in /etc/sanoid.       #
+######################################
+
+[tank]
+    use_template = production
+    recursive = yes
+
+#############################
+# templates below this line #
+#############################
+
+[template_production]
+    frequently = 0
+    hourly = 36
+    daily = 30
+    monthly = 3
+    yearly = 0
+    autosnap = yes
+    autoprune = yes

ansible/roles/zfs/tasks/main.yml

@@ -0,0 +1,12 @@
+- name: Calculate ZFS ARC size
+  set_fact:
+    zfs_arc_size: "{{ (ansible_memtotal_mb * 1024 * 1024) * 0.15 }}"
+
+- name: Enable zfs module
+  modprobe:
+    name: zfs
+    state: present
+    params: 'zfs_arc_max={{ zfs_arc_size }}'
+
+- name: Sanoid
+  include: sanoid.yml

ansible/roles/zfs/tasks/sanoid.yml

@@ -0,0 +1,16 @@
+- name: Install Sanoid
+  package:
+    name: sanoid
+  become: true
+
+- name: Sanoid config
+  template:
+    src: files/sanoid.conf
+    dest: /etc/sanoid/sanoid.conf
+  become: true
+
+- name: Install sanoid cron job
+  cron:
+    name: sanoid
+    special_time: hourly
+    job: TZ=UTC sanoid