Add a role to reconfigure raspberry pi swap

roles/rpi_swap/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+rpi_swap_size: 1024
+rpi_swap_reboot: true

roles/rpi_swap/tasks/main.yml

@@ -0,0 +1,19 @@
+---
+- name: swapoff the current swap file
+  command: dphys-swapfile swapoff
+
+- name: set the swap size to {{ rpi_swap_size }}
+  lineinfile:
+    path: /etc/dphys-swapfile
+    regexp: "^CONF_SWAPSIZE"
+    line: "CONF_SWAPSIZE={{ rpi_swap_size }}"
+
+- name: re-initialize swap file
+  command: dphys-swapfile setup
+
+- name: swapon the swap file
+  command: dphys-swapfile swapon
+
+- name: reboot the raspberry pi
+  command: reboot
+  when: rpi_swap_reboot