fluentd#6 Upgrade to version 4

tasks/fluentd-client.yml

@@ -25,7 +25,7 @@
 
 - name: Apt Repository
   apt_repository:
-    repo: 'deb [arch=amd64] http://packages.treasuredata.com/3/ubuntu/{{ ansible_distribution_release }}/ {{ ansible_distribution_release }} contrib'
+    repo: 'deb [arch=amd64] http://packages.treasuredata.com/4/ubuntu/{{ ansible_distribution_release }}/ {{ ansible_distribution_release }} contrib'
     state: present
     mode: 0644
 
@@ -43,6 +43,7 @@
     - fluent-plugin-record-modifier
     - fluent-plugin-mail
     - fluent-plugin-beats
+    - fluent-plugin-td-monitoring
 
 - name: Ensure SSL Directory
   file: