Add sysctl customization: swapiness

playbook_general_deploy.yml

@@ -1,12 +1,13 @@
 ---
 - hosts: all
   roles:
-    - auto_reboot
-    - auto_upgrade
-    - client_ntp
-    - client_resolvers
-    - client_tools
-    - users_sudo
-    - client_iptables
-    - munin-node
-    - munin-async
+#    - auto_reboot
+#    - auto_upgrade
+    - sysctl_customizations
+#    - client_ntp
+#    - client_resolvers
+#    - client_tools
+#    - users_sudo
+#    - client_iptables
+#    - munin-node
+#    - munin-async

roles/sysctl_customizations/README.md

@@ -0,0 +1,42 @@
+Ansible Role: systctl customization
+=========
+
+This role set up sysctl customization for a GNU/Linux server.
+
+Requirements
+------------
+
+None.
+
+Role Variables
+--------------
+
+All variables and default values are defined in `defaults/main.yml` :
+
+    # Sysctl swapiness value
+    sysctl_vm_swapiness: 10
+    
+    # Sysctl config file
+    sysctl_config_file: /etc/sysctl.d/56-ansible.conf
+
+Dependencies
+------------
+
+None.
+
+Example Playbook
+----------------
+
+    - hosts: all
+      roles:
+        - sysctl_customizations
+
+License
+-------
+
+BSD
+
+Author Information
+------------------
+
+This role was created in 2020 by Nemo.

roles/sysctl_customizations/defaults/main.yml

@@ -0,0 +1,8 @@
+---
+# defaults file for sysctl_customization
+
+# Sysctl swapiness value
+sysctl_vm_swapiness: '10'
+
+# Sysctl config file
+sysctl_config_file: /etc/sysctl.d/56-ansible.conf

roles/sysctl_customizations/meta/main.yml

@@ -0,0 +1,26 @@
+galaxy_info:
+  author: nemo
+  description: Set up sysctl customizations service for GNU/Linux.
+  company: Wirebrass
+
+  license: license (BSD)
+
+  min_ansible_version: 2.4
+
+  platforms:
+    - name: Debian
+      versions:
+        - stretch
+        - buster
+    - name: Gentoo
+      versions:
+        - all
+
+  galaxy_tags:
+    - sysctl
+    - swapiness
+    - system
+    - server
+    - auto
+
+dependencies: []

roles/sysctl_customizations/tasks/main.yml

@@ -0,0 +1,3 @@
+---
+# Main tasks file for sysctl_customizations
+- import_tasks: sysctl.yml

roles/sysctl_customizations/tasks/sysctl.yml

@@ -0,0 +1,6 @@
+---
+- sysctl:
+    name: vm.swappiness
+    value: "{{ sysctl_vm_swapiness }}"
+    state: present
+    sysctl_file: "{{ sysctl_config_file }}"