[mtail] More configuration to select what should be monitored

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

group_vars/mtail.yml

+---
+glob_mtail:
+  config:
+    - dhcpd.mtail
+    - radiusd.mtail
+  remove: []

host_vars/tealc.adm.crans.org.yml

@@ -56,3 +56,9 @@ loc_rsyslog_server:
       vars:
         - name: InputRELPServerRun
           value: 20514
+
+loc_mtail:
+  config:
+    - dhcpd.mtail
+  remove:
+    - radiusd.mtail

hosts

@@ -105,6 +105,10 @@ linx.adm.crans.org
 [mailman]
 mailman.adm.crans.org
 
+[mtail]
+gulp.cachan-adm.crans.org
+tealc.adm.crans.org
+
 [prometheus]
 monitoring.adm.crans.org
 fyre.cachan-adm.crans.org

plays/monitoring.yml

@@ -44,9 +44,10 @@
 #  roles: ["prometheus-node-exporter-postfix"]
 
 # Monitor logs with mtail
-- hosts: tealc.adm.crans.org,gulp.cachan-adm.crans.org
+- hosts: mtail
   vars:
     mirror: '{{ glob_mirror | default({}) | combine(loc_mirror | default({})) }}'
+    mtail: '{{ glob_mtail | default({}) | combine(loc_mtail | default({})) }}'
   roles:
     - mtail
 

roles/mtail/tasks/main.yml

@@ -30,9 +30,14 @@
     src: "mtail/{{ item }}.j2"
     dest: "/etc/mtail/{{ item }}"
     mode: 0644
-  loop:
-    - dhcpd.mtail
-    - radiusd.mtail
+  loop: "{{ mtail.config }}"
+  notify: Restart mtail
+
+- name: Drop unusued configuration
+  file:
+    path: "/etc/mtail/{{ item }}"
+    state: absent
+  loop: "{{ mtail.remove }}"
   notify: Restart mtail
 
 - name: Indicate role in motd