diff --git a/.gitmodules b/.gitmodules
index 6281923..a03a8a4 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,24 +1,27 @@
 [submodule "nfs"]
 	path = roles/nfs
 	url = https://github.com/geerlingguy/ansible-role-nfs.git
 [submodule "roles/swap"]
 	path = roles/swap
 	url = https://github.com/tribou/ansible-swap.git
 [submodule "roles/yumrepo"]
 	path = roles/yumrepo
 	url = https://github.com/picotrading/ansible-yumrepo.git
 [submodule "templates/encoder"]
 	path = templates/encoder
 	url = https://github.com/picotrading/config-encoder-macros
 [submodule "roles/keepalived"]
 	path = roles/keepalived
 	url = https://github.com/tcomerma/ansible-keepalived.git
 [submodule "roles/glusterfs"]
 	path = roles/glusterfs
 	url = https://github.com/geerlingguy/ansible-role-glusterfs.git
 [submodule "roles/nagios"]
 	path = roles/nrpe
 	url = https://github.com/Mooash/nagios-nrpe-server.git
 [submodule "roles/jenkins"]
 	path = roles/jenkins
 	url = https://github.com/rorist/ansible-jenkins
+[submodule "roles/rolling-reboot"]
+	path = roles/rolling-reboot
+	url = https://github.com/rorist/ansible-rolling-reboot.git
diff --git a/reboot.yml b/reboot.yml
new file mode 100644
index 0000000..99aa1e9
--- /dev/null
+++ b/reboot.yml
@@ -0,0 +1,50 @@
+---
+- name: Create Instances
+  hosts: 127.0.0.1
+  connection: local
+  gather_facts: false
+  vars_files:
+    - "vars/main.yml"
+  tasks:
+    - include: tasks/create-instances.yml
+
+- name: Reboot monit instances
+  hosts: monit
+  user: centos
+  sudo: yes
+  serial: 50%
+  vars_files:
+    - "vars/main.yml"
+  roles:
+    - role: rolling-reboot
+
+- name: Reboot database instances
+  hosts: dbs
+  user: centos
+  sudo: yes
+  serial: 25%
+  vars_files:
+    - "vars/main.yml"
+  roles:
+    - role: rolling-reboot
+
+- name: Reboot app instances
+  hosts: app
+  user: centos
+  sudo: yes
+  serial: 25%
+  vars_files:
+    - "vars/main.yml"
+  roles:
+    - role: rolling-reboot
+
+- name: Reboot ci instances
+  hosts: ci
+  user: centos
+  sudo: yes
+  serial: 50%
+  vars_files:
+    - "vars/main.yml"
+  roles:
+    - role: rolling-reboot
+
diff --git a/roles/rolling-reboot b/roles/rolling-reboot
new file mode 160000
index 0000000..2db82da
--- /dev/null
+++ b/roles/rolling-reboot
@@ -0,0 +1 @@
+Subproject commit 2db82da5ce3e034928594ab0e18ad03f17a87360
diff --git a/vars/main.yml.example b/vars/main.yml.example
index 64aab48..16741c1 100644
--- a/vars/main.yml.example
+++ b/vars/main.yml.example
@@ -1,70 +1,74 @@
 ---
 project_name: "c4science"
 ansible_ssh_user: "centos"
 
 user_pwd_root: ""
 user_pwd_centos: ""
 
 # OpenStack
 keypair_name: ""
 image_id: ""
 image_id_coreos: ""
 public_net: ""
 private_net: ""
 flavor_id_small:  ""
 flavor_id_medium: ""
 flavor_id_large:  ""
 
 flavor_id_small_backup: ""
 private_net_backup: ""
 image_id_backup: ""
 
 region_main: ""
 region_back: ""
 
 # Storage
 s3_access_key: ""
 s3_secret_key: ""
 s3_endpoint: ""
 s3_bucket: ""
 s3_region: ""
 
 # Lbs
 external_ip: 0.0.0.0
 backup_ip: 0.0.0.0
 jenkins_port: 8080
 stats_port: 8082
 monit_port: 8081
 monit_user: admin
 monit_pass: 
 
+rolling_reboot_proxy_host: "{{ external_ip }}"
+rolling_reboot_pause: 30
+rolling_reboot_wait_delay: 20
+
 # App
 domain: example.com
 phabricator_path: /srv/www/facebook/
 repositories_path: /var/repo/
 phd_user: phabricator
 www_user: apache
 vcs_user: git
 vcs_port: 2222
 jenkins_admin_user: admin
 jenkins_admin_pass:
 phabricator_domains:
     - 'example.com'
 
 # Dbs
 mysql_app_user: ""
 mysql_app_pass: ""
 mysql_lbs_user: "haproxy"
 mysql_cluster_name: ""
 
 # SSH
 ssh_keys:
     - "ssh-rsa mysuperkey1"
     - "ssh-rsa mysuperkey2"
 
 # Swap
 swap_path: "/swapfile"
 dd_bs_size_mb: 32
 swap_count: 128
 swappiness: 10
 vfs_cache_pressure: 50