From 9406e7ddfbd59da4ecbe42dc016163a7bf257d1b Mon Sep 17 00:00:00 2001
From: Josh Lay <me@jlay.io>
Date: Wed, 3 Jun 2020 21:15:43 -0500
Subject: [PATCH] tuned - add custom profile support, udev/io sched. example

---
 play.yml                                      | 17 +++++++++++++
 roles/tuned/defaults/main.yml                 |  3 +++
 roles/tuned/handlers/main.yml                 |  5 ++++
 .../tuned/tasks/configure-custom-profile.yml  | 25 +++++++++++++++++++
 roles/tuned/tasks/main.yml                    |  9 +++++++
 roles/tuned/templates/custom_profile.conf.j2  | 12 +++++++++
 6 files changed, 71 insertions(+)
 create mode 100644 roles/tuned/defaults/main.yml
 create mode 100644 roles/tuned/handlers/main.yml
 create mode 100644 roles/tuned/tasks/configure-custom-profile.yml
 create mode 100644 roles/tuned/templates/custom_profile.conf.j2

diff --git a/play.yml b/play.yml
index 740deab..dd93ece 100644
--- a/play.yml
+++ b/play.yml
@@ -1,5 +1,22 @@
 ---
 - hosts: all
+  vars:
+    tuned_base_profile: "network-latency"
+    tuned_custom_profile:
+      name: tweaks
+      sections:
+        - name: main
+          params:
+            - option: summary
+              value: "Custom tuned profile created by jlay - virt. IO scheduler, TCP, etc"
+            - option: include
+              value: "{{ tuned_base_profile }}"
+        - name: disk
+          params:
+            - option: devices_udev_regex
+              value: "(ID_MODEL=QEMU_HARDDISK)|(ID_VENDOR=HC)"
+            - option: elevator
+              value: "mq-deadline"
   roles:
     - {role: bootstrap}
     - {role: tmp-mount-fix}
diff --git a/roles/tuned/defaults/main.yml b/roles/tuned/defaults/main.yml
new file mode 100644
index 000000000..9596cea
--- /dev/null
+++ b/roles/tuned/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+tuned_base_profile: "network-latency"
+tuned_custom_profile: "default-custom-profile"
diff --git a/roles/tuned/handlers/main.yml b/roles/tuned/handlers/main.yml
new file mode 100644
index 000000000..fb4ce78
--- /dev/null
+++ b/roles/tuned/handlers/main.yml
@@ -0,0 +1,5 @@
+---
+- name: restart tuned
+  service:
+    name: tuned
+    state: restarted
diff --git a/roles/tuned/tasks/configure-custom-profile.yml b/roles/tuned/tasks/configure-custom-profile.yml
new file mode 100644
index 000000000..087be78
--- /dev/null
+++ b/roles/tuned/tasks/configure-custom-profile.yml
@@ -0,0 +1,25 @@
+# borrowed from https://github.com/giovtorres/ansible-role-tuned/
+# trivially changed based on style preferences
+---
+- name: create custom tuned profile directory
+  file:
+    path: "/etc/tuned/{{ tuned_custom_profile.name }}"
+    state: directory
+    owner: root
+    group: root
+    mode: 0755
+
+- name: copy custom profile configuration file
+  template:
+    src: custom_profile.conf.j2
+    dest: "/etc/tuned/{{ tuned_custom_profile.name }}/tuned.conf"
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart tuned
+  register: tuned_custom_profile_template
+
+- name: set custom tuned profile
+  command: "/usr/sbin/tuned-adm profile {{ tuned_custom_profile.name }}"
+  when:
+    - tuned_custom_profile_template is changed
diff --git a/roles/tuned/tasks/main.yml b/roles/tuned/tasks/main.yml
index 6a41998..d483264 100644
--- a/roles/tuned/tasks/main.yml
+++ b/roles/tuned/tasks/main.yml
@@ -13,3 +13,12 @@
     name: tuned
     enabled: yes
     state: started
+
+- name: get active tuned profile
+  command: /usr/sbin/tuned-adm active
+  register: tuned_active
+  changed_when: false
+  ignore_errors: true
+
+- name: deploy {{ tuned_custom_profile }} based on {{ tuned_base_profile }}
+  include: configure-custom-profile.yml
diff --git a/roles/tuned/templates/custom_profile.conf.j2 b/roles/tuned/templates/custom_profile.conf.j2
new file mode 100644
index 000000000..8ed68ea
--- /dev/null
+++ b/roles/tuned/templates/custom_profile.conf.j2
@@ -0,0 +1,12 @@
+{{ ansible_managed | comment }}
+#
+# tuned '{{ tuned_custom_profile.name }}' configuration
+#
+
+{% for section in tuned_custom_profile.sections %}
+[{{ section.name }}]
+{% for item in section.params %}
+{{ item.option }}={{ item.value }}
+{% endfor %}
+
+{% endfor %}