first commit

roles/base/tasks/system_setup/memory.yml

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+- name: system setup | memory | adjust current swappiness
+  tags: swappiness,sysctl,system,setup
+  lineinfile:
+    dest: "/etc/sysctl.conf"
+    create: yes
+    regexp: "swappiness ="
+    line: "vm.swappiness = 5"
+  register: swappiness
+
+- name: system setup | memory | apply swappiness
+  tags: swappiness,sysctl,system,setup
+  command: sysctl vm.swappiness={{ swappiness_value }}
+  when: swappiness.changed
+
+- name: system setup | memory | install earlyoom package
+  tags: earlyoom,packages,system,setup
+  package:
+    name: earlyoom
+    state: latest
+
+- name: system setup | memory | enable and start earlyoom
+  tags: earlyoom,packages,system,setup
+  service:
+    name: earlyoom
+    enabled: yes
+    state: started