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diff --git a/lamp_haproxy/aws/rolling_update.yml b/lamp_haproxy/aws/rolling_update.yml
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+---
+# This playbook does a rolling update for all webservers serially (one at a time).
+# Change the value of serial: to adjust the number of server to be updated.
+#
+# The three roles that apply to the webserver hosts will be applied: common,
+# base-apache, and web. So any changes to configuration, package updates, etc,
+# will be applied as part of the rolling update process.
+#
+
+# gather facts from monitoring nodes for iptables rules
+- hosts: tag_ansible_group_monitoring
+  tasks: []
+
+- hosts: tag_ansible_group_webservers
+  serial: 1
+
+  # These are the tasks to run before applying updates:
+  pre_tasks:
+  - name: disable nagios alerts for this host webserver service
+    nagios: 'action=disable_alerts host={{ inventory_hostname }} services=webserver'
+    delegate_to: "{{ item }}"
+    with_items: groups.tag_ansible_group_monitoring
+
+  - name: disable the server in haproxy
+    haproxy: 'state=disabled backend=myapplb host={{ inventory_hostname }} socket=/var/lib/haproxy/stats'
+    delegate_to: "{{ item }}"
+    with_items: groups.tag_ansible_group_lbservers
+
+  roles:
+  - common
+  - base-apache
+  - web
+
+  # These tasks run after the roles:
+  post_tasks:
+  - name: wait for webserver to come up
+    wait_for: 'host={{ inventory_hostname }} port=80 state=started timeout=80'
+
+  - name: enable the server in haproxy
+    haproxy: 'state=enabled backend=myapplb host={{ inventory_hostname }} socket=/var/lib/haproxy/stats'
+    delegate_to: "{{ item }}"
+    with_items: groups.tag_ansible_group_lbservers
+
+  - name: re-enable nagios alerts
+    nagios: 'action=enable_alerts host={{ inventory_hostname }} services=webserver'
+    delegate_to: "{{ item }}"
+    with_items: groups.tag_ansible_group_monitoring