Improve disable THP systemd unit file

Author: boutetnico

files/disable-transparent-hugepages.service renamed to files/disable-transparent-hugepages.amazon.service

@@ -6,14 +6,9 @@ Before=mongodb.service
 
 [Service]
 Type=oneshot
-ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/transparent_hugepage/enabled'
-ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/transparent_hugepage/defrag'
 ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled'
 ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag'
-ExecStart=-/bin/bash -c 'echo 0 > /sys/kernel/mm/transparent_hugepage/khugepaged/defrag'
 ExecStart=-/bin/bash -c 'echo 0 > /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/defrag'
-ExecStart=-/bin/bash -c 'echo no > /sys/kernel/mm/transparent_hugepage/khugepaged/defrag'
-ExecStart=-/bin/bash -c 'echo no > /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/defrag'
 
 [Install]
 #WARN: check service name on your system

files/disable-transparent-hugepages.debian.service

@@ -0,0 +1,16 @@
+[Unit]
+Description="Disable Transparent Hugepage before MongoDB boots"
+#WARN: check service name on your system
+# If you are using MongoDB Cloud, service name is "mongodb-mms-automation-agent.service"
+Before=mongodb.service
+
+[Service]
+Type=oneshot
+ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/transparent_hugepage/enabled'
+ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/transparent_hugepage/defrag'
+ExecStart=-/bin/bash -c 'echo 0 > /sys/kernel/mm/transparent_hugepage/khugepaged/defrag'
+
+[Install]
+#WARN: check service name on your system
+# If you are using MongoDB Cloud, service name is "mongodb-mms-automation-agent.service"
+RequiredBy=mongodb.service

files/disable-transparent-hugepages.redhat.service

@@ -0,0 +1,16 @@
+[Unit]
+Description="Disable Transparent Hugepage before MongoDB boots"
+#WARN: check service name on your system
+# If you are using MongoDB Cloud, service name is "mongodb-mms-automation-agent.service"
+Before=mongodb.service
+
+[Service]
+Type=oneshot
+ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/redhat_transparent_hugepage/enabled'
+ExecStart=-/bin/bash -c 'echo never > /sys/kernel/mm/redhat_transparent_hugepage/defrag'
+ExecStart=-/bin/bash -c 'echo 0 > /sys/kernel/mm/redhat_transparent_hugepage/khugepaged/defrag'
+
+[Install]
+#WARN: check service name on your system
+# If you are using MongoDB Cloud, service name is "mongodb-mms-automation-agent.service"
+RequiredBy=mongodb.service

tasks/disable_transparent_hugepages.yml

@@ -1,11 +1,14 @@
 ---
 - name: Create disable transparent hugepages systemd service file
   copy:
-    src: disable-transparent-hugepages.service
+    src: "{{ item }}"
     dest: /etc/systemd/system/disable-transparent-hugepages.service
     owner: root
     group: root
     mode: 0644
+  with_first_found:
+    - "disable-transparent-hugepages.{{ ansible_distribution | lower }}.service"
+    - "disable-transparent-hugepages.{{ ansible_os_family | lower }}.service"
 
 - name: Enable disable-transparent-hugepages.service
   systemd: