From 77de569531a309162b4b809cb0f668c31160e336 Mon Sep 17 00:00:00 2001
From: Jeremy Lecour <jlecour@evolix.fr>
Date: Fri, 5 Apr 2019 08:06:49 +0200
Subject: [PATCH] use a variable to configure swapiness

---
 evolinux-base/defaults/main.yml |  1 +
 evolinux-base/tasks/kernel.yml  | 10 +++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/evolinux-base/defaults/main.yml b/evolinux-base/defaults/main.yml
index 88ea931d..1ebf800c 100644
--- a/evolinux-base/defaults/main.yml
+++ b/evolinux-base/defaults/main.yml
@@ -51,6 +51,7 @@ evolinux_kernel_include: True
 evolinux_kernel_reboot_after_panic: True
 evolinux_kernel_disable_tcp_timestamps: True
 evolinux_kernel_reduce_swapiness: True
+evolinux_kernel_swapiness_level: 20
 evolinux_kernel_cve20165696: True
 
 # fstab
diff --git a/evolinux-base/tasks/kernel.yml b/evolinux-base/tasks/kernel.yml
index 9dc66c42..03512195 100644
--- a/evolinux-base/tasks/kernel.yml
+++ b/evolinux-base/tasks/kernel.yml
@@ -32,10 +32,18 @@
     reload: yes
   when: evolinux_kernel_disable_tcp_timestamps
 
+- name: "Check for swapiness value"
+  assert:
+    that:
+      - evolinux_kernel_swapiness_level >= 0
+      - evolinux_kernel_swapiness_level < 100
+    msg: swapiness level should be >= 0 and < 100
+    
+
 - name: Reduce the swapiness
   sysctl:
     name: vm.swappiness
-    value: 20
+    value: "{{ evolinux_kernel_swapiness_level }}"
     sysctl_file: "{{ evolinux_kernel_sysctl_path }}"
     state: present
     reload: yes