swap

debian12-basic.yml

@@ -2,6 +2,9 @@
 - name: Update web servers
   hosts: all
   remote_user: root
+  vars:
+    swapfile_size: 1
+    swapfile_path: /swapfile
   tasks:
   - name: Update all packages to their latest version
     ansible.builtin.apt:
@@ -13,3 +16,40 @@
       pkg:
       - htop
       - unp
+
+  - name: Create swap file
+    command: |
+      {% if swapfile_fallocate %}
+      fallocate -l {{ ((swapfile_size) | int * 1024 * 1024) }} {{ swapfile_path }}
+      {% else %}
+      dd if=/dev/zero of={{ swapfile_path }} bs=1M count={{ swapfile_size }}
+      {% endif %}
+    args:
+      creates: "{{ swapfile_path }}"
+    register: swapfile_register_create
+
+  - name: Set swap file permissions
+    file:
+      path: "{{ swapfile_path }}"
+      state: "file"
+      owner: "root"
+      group: "root"
+      mode: "0600"
+
+  - name: Initialize swap file
+    command: mkswap {{ swapfile_path }}
+    when: swapfile_register_create is changed
+
+  - name: Enable swap file
+    command: swapon {{ swapfile_path }}
+    when: swapfile_register_create is changed
+
+  - name: Manage swap file in /etc/fstab
+    mount:
+      src: "{{ swapfile_path }}"
+      name: "none"
+      fstype: "swap"
+      opts: "sw,nofail"
+      dump: "0"
+      passno: "0"
+      state: "present"