Merge pull request #20 from mhakala/master

collectd leaks memory, mitigate by setting systemd-croup memory limit…

defaults/main.yml

@@ -26,6 +26,9 @@ collectd_precache: True
 # Extra rules for collectd prefix mangling
 collectd_prefix_rules: []
 
+# default systemd unit memory limit for this service
+collectd_memory_limit: "1536M"
+
 # Example: This mimics the old behaviour if you had
 # collectd_prefix_rules:
 #   - name: generic_prefix

handlers/main.yml

@@ -0,0 +1,5 @@
+---
+
+- name: restart_collectd
+  systemd: name=collectd state=restarted daemon_reload=yes
+

tasks/redhat.yml

@@ -58,6 +58,16 @@
     register: collectd_rsyslog_drop
     when: (collectd_drop_rsyslog_spam and collectd_plugins_exec is defined) or (ansible_virtualization_role != "guest" and collectd_ipmitool|bool)
 
+  - name: Add memory-limit via systemd as collectd leaks memory
+    lineinfile:
+       path: /usr/lib/systemd/system/collectd.service
+       regexp: '^MemoryLimit='
+       line: "MemoryLimit={{ collectd_memory_limit }}"
+       insertafter: '^\[Service\]'
+       firstmatch: yes
+       state: present
+    notify: restart_collectd
+
   - name: enable and start collectd
     service: name=collectd state=started enabled=yes
     when: ansible_connection != 'chroot'