Remount /usr only if it is a dedicated partition

drbd-utils/tasks/nagios.yml

@@ -5,10 +5,20 @@
     path: /usr/local/lib/nagios/plugins/
   register: nagios_plugins_dir
 
-- name: Mount /usr in rw
-  command: mount -o remount,rw /usr warn=no
+- name: Check if /usr is a partition
+  shell: "mount | grep 'on /usr type'"
+  args:
+    warn: no
   changed_when: False
-  when: nagios_plugins_dir.stat.exists
+  failed_when: False
+  register: usr_partition
+
+- name: Mount /usr in rw
+  command: mount -o remount,rw /usr
+  args:
+    warn: no
+  changed_when: False
+  when: usr_partition.rc == 0 and nagios_plugins_dir.stat.exists
 
 # https://exchange.nagios.org/components/com_mtree/attachment.php?link_id=3367&cf_id=30
 - name: Install Nagios plugin

evoacme/tasks/certbot.yml

@@ -39,9 +39,20 @@
       state: latest
       default_release: "{{ evoacme_certbot_release }}"
 
-  - name: Mount /usr in rw
-    command: mount -o remount,rw /usr warn=no
+  - name: Check if /usr is a partition
+    shell: "mount | grep 'on /usr type'"
+    args:
+      warn: no
     changed_when: False
+    failed_when: False
+    register: usr_partition
+
+  - name: Mount /usr in rw
+    command: mount -o remount,rw /usr
+    args:
+      warn: no
+    changed_when: False
+    when: usr_partition.rc == 0
 
   - name: Remove certbot symlink for apt install
     file:

filebeat/tasks/main.yml

@@ -30,12 +30,27 @@
   when: filebeat_logstash_plugin and logstash_plugin.stat.exists
 
 - block:
-  - name: /usr is mounted as "rw"
-    command: mount -oremount,rw /usr
+  - name: Check if /usr is a partition
+    shell: "mount | grep 'on /usr type'"
+    args:
+      warn: no
+    changed_when: False
+    failed_when: False
+    register: usr_partition
+
+  - name: Mount /usr in rw
+    command: mount -o remount,rw /usr
+    args:
+      warn: no
+    changed_when: False
+    when: usr_partition.rc == 0
 
   - name: Logstash plugin is installed
     command: /usr/share/logstash/bin/logstash-plugin install logstash-input-beats
 
   - name: /usr is remounted
     command: mount -oremount /usr
-  when: filebeat_logstash_plugin and logstash_plugin.stat.exists and not logstash_plugin_installed | success
+    args:
+      warn: no
+    changed_when: False
+    when: usr_partition.rc == 0 and filebeat_logstash_plugin and logstash_plugin.stat.exists and not logstash_plugin_installed | success

kvm-host/tasks/main.yml

@@ -1,8 +1,19 @@
 ---
 - include: packages.yml
 
-- name: Mount /usr in rw
-  command: mount -o remount,rw /usr warn=no
+- name: Check if /usr is a partition
+  shell: "mount | grep 'on /usr type'"
+  args:
+    warn: no
   changed_when: False
+  failed_when: False
+  register: usr_partition
+
+- name: Mount /usr in rw
+  command: mount -o remount,rw /usr
+  args:
+    warn: no
+  changed_when: False
+  when: usr_partition.rc == 0
 
 - include: munin.yml

tomcat-instance/tasks/nagios.yml

@@ -1,12 +1,23 @@
 ---
-- name: Intall monitorings plugins 
+- name: Intall monitorings plugins
   apt:
     name: monitoring-plugins
     state: present
 
-- name: Mount /usr in rw
-  command: mount -o remount,rw /usr warn=no
+- name: Check if /usr is a partition
+  shell: "mount | grep 'on /usr type'"
+  args:
+    warn: no
   changed_when: False
+  failed_when: False
+  register: usr_partition
+
+- name: Mount /usr in rw
+  command: mount -o remount,rw /usr
+  args:
+    warn: no
+  changed_when: False
+  when: usr_partition.rc == 0
 
 - name: Create Nagios plugins dir
   file: