diff --git a/group_vars/os_centos.yml b/group_vars/os_centos.yml
new file mode 100644
index 0000000..2fb889e
--- /dev/null
+++ b/group_vars/os_centos.yml
@@ -0,0 +1,25 @@
+# Service and package's name of NTP client on Debian
+ntp_service_name: ntpd
+ntp_package: ntp
+
+# Package's name of sudo package on Debian
+sudo_package: sudo
+
+# Service and package's name of CRON on Debian
+cron_service_name: cron
+cron_package: cron
+
+# Sudoers' group name on Debian
+sudo_group: wheel
+
+# Command to run to execute a Debian update
+cron_upgrade_job: /bin/yum -y upgrade ; /bin/yum -y autoremove
+
+# Tools to install on Debian hosts
+tools_package:
+  - sudo
+  - curl
+  - sed
+  - grep
+  - net-tools
+