feat: add configurable newrelic_group and newrelic_groups

since docker integration only works if you add the `docker` group to `newrelic_groups` it
doesn't make sense to enable it by default.

BREAKING CHANGE: `newrelic_disable_docker` and `newrelic_disable_nfs` now default to `yes`

defaults/main.yml

@@ -2,16 +2,20 @@
 #
 # newrelic_license_key: yourkey
 
-# user name
+# User name
 newrelic_user: newrelic
+# User group
+newrelic_group: newrelic
+# User groups to append to user
+newrelic_groups: []
 # Name of the file where the server monitor will store it's log messages.
 newrelic_logfile: /var/log/newrelic/nrsysmond.log
 # Level of detail you want in the log file
 newrelic_loglevel: info
 # Set to true to disable NFS client statistics gathering.
-newrelic_disable_nfs: no
+newrelic_disable_nfs: yes
 # Set to true to disable Docker container statistics gathering.
-newrelic_disable_docker: no
+newrelic_disable_docker: yes
 # start on boot
 newrelic_service_enabled: yes
 # current state: started, stopped

tasks/config.yml

@@ -5,9 +5,15 @@
     src: "{{ item }}.j2"
     dest: "/{{ item }}"
     owner: "{{ newrelic_user }}"
-    group: "{{ newrelic_user }}"
+    group: "{{ newrelic_group }}"
     mode: "0640"
   notify: restart newrelic
   with_items:
     - "etc/newrelic/nrsysmond.cfg"
 
+- name: Configuring user groups
+  user:
+    name: "{{ newrelic_user }}"
+    groups: "{{ newrelic_groups }}"
+    append: yes
+  when: not newrelic_disable_docker

tasks/service.yml

@@ -5,7 +5,3 @@
     name: newrelic-sysmond
     state: "{{ newrelic_service_state }}"
     enabled: "{{ newrelic_service_enabled }}"
-
-- name: Add newrelic user to docker group
-  user: name=newrelic append=yes groups=docker
-  when: not newrelic_disable_docker