add swapfile for lewis

ansible/hypervisors.yml

@@ -65,3 +65,30 @@
   hosts: lewis
   roles:
     - {role: borg, tags: borg}
+
+- hosts: lewis
+
+  tasks:
+    - name: Check if swap file exists
+      stat:
+        path: "{{ swapfile_loc }}"
+      register: swapfile
+
+    - name: Create swap file
+      block:
+        - name: Create file
+          command:
+            cmd: "dd if=/dev/zero of={{ swapfile_loc }} bs=1024 count=2M"
+
+        - name: Format swap file
+          command:
+            cmd: "mkswap {{ swapfile_loc }}"
+      when: not swapfile.stat.exists
+
+    - name: Mount swap file
+      mount:
+        src: "{{ swapfile_loc }}"
+        path: swap
+        fstype: swap
+        opts: sw
+        state: present

ansible/inventory/host_vars/lewis/swap.yml

@@ -0,0 +1 @@
+swapfile_loc: /swapfile.img