diff --git a/README.md b/README.md
index 3988202..f8c6bec 100644
--- a/README.md
+++ b/README.md
@@ -112,6 +112,54 @@ collectd_df_ValuesAbsolute: true
 collectd_df_ValuesPercentage: false
 ```
 
+### Install plugins
+
+To indicate the plugins that you would like installed, list all the plugins in the `packages` variable in 
+your `group_vars` folder.
+
+For example, below installs only the `collect-rrdtools`, `collectd-rrdtool` and `collectd-iptables` plugins.
+
+```
+packages:
+  - collectd-rrdcached
+  - collectd-rrdtool
+  - collectd-iptables
+```
+
+If you do not set `packages`, the following default packages that will be installed.
+
+```
+  - git
+  - collectd
+  - collectd-amqp
+  - collectd-apache
+  - collectd-bind
+  - collectd-curl
+  - collectd-curl_json
+  - collectd-curl_xml
+  - collectd-dbi
+  - collectd-dns
+  - collectd-generic-jmx
+  - collectd-iptables
+  - collectd-ipvs
+  - collectd-java
+  - collectd-lvm
+  - collectd-mysql
+  - collectd-netlink
+  - collectd-notify_desktop
+  - collectd-postgresql
+  - collectd-rrdcached
+  - collectd-rrdtool
+  - collectd-sensors
+  - collectd-snmp
+  - collectd-write_riemann
+```
+
+The following command will list the possible packages that can be installed:
+
+  - CentOS 6: `sudo yum --enablerepo="epel,gf-plus" list available | grep collectd-`
+  - CentOS 7: `sudo yum --enablerepo="epel" list available | grep collectd-`
+
 
 ### Roles addition
 
diff --git a/defaults/main.yml b/defaults/main.yml
index 4f75fbd..6916858 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -3,3 +3,27 @@ collectd_forward_to_logstash: false
 
 use_librato: false
 use_graphite: false
+
+packages:
+  - git
+  - collectd
+  - collectd-amqp
+  - collectd-apache
+  - collectd-bind
+  - collectd-curl
+  - collectd-curl_json
+  - collectd-curl_xml
+  - collectd-dbi
+  - collectd-generic-jmx
+  - collectd-iptables
+  - collectd-ipvs
+  - collectd-java
+  - collectd-lvm
+  - collectd-mysql
+  - collectd-netlink
+  - collectd-notify_desktop
+  - collectd-postgresql
+  - collectd-rrdcached
+  - collectd-rrdtool
+  - collectd-snmp
+  - collectd-write_riemann
diff --git a/vars/main.yml b/vars/main.yml
deleted file mode 100644
index b1a3df5..0000000
--- a/vars/main.yml
+++ /dev/null
@@ -1,32 +0,0 @@
-packages:
-  - git
-  - collectd
-  - collectd-amqp
-  - collectd-apache
-#  - collectd-ascent
-  - collectd-bind
-  - collectd-curl
-  - collectd-curl_json
-  - collectd-curl_xml
-  - collectd-dbi
-  - collectd-dns
-  - collectd-email
-  - collectd-generic-jmx
-  - collectd-ipmi
-  - collectd-iptables
-  - collectd-ipvs
-  - collectd-java
-  - collectd-lvm
-  - collectd-mysql
-  - collectd-netlink
-  - collectd-nginx
-  - collectd-notify_desktop
-  - collectd-notify_email
-  - collectd-ping
-  - collectd-postgresql
-  - collectd-rrdcached
-  - collectd-rrdtool
-  - collectd-sensors
-  - collectd-snmp
-  - collectd-virt
-  - collectd-write_riemann