diff --git a/Makefile b/Makefile
index 495c0ad..c445dec 100644
--- a/Makefile
+++ b/Makefile
@@ -1,111 +1,119 @@
 # vim: set noexpandtab:
 
 ANSIBLE = ansible-playbook
 SKIP_TAGS = --skip-tags "init,common"
 PROD_BOOK = books/main_prod.yml
 TEST_BOOK = books/main_test.yml
+PROD_VARS = ../vars/main.yml
+TEST_VARS = ../vars/test.yml
 
 status:
 	nova list
 
 # Everything
 
 list:
 	$(ANSIBLE) $(PROD_BOOK) --list-hosts
 
 test-list:
 	$(ANSIBLE) $(TEST_BOOK) --list-hosts
 
 init:
 	$(ANSIBLE) $(PROD_BOOK)
 
 test-init:
 	$(ANSIBLE) $(TEST_BOOK)
 
 up:
 	$(ANSIBLE) $(PROD_BOOK) $(SKIP_TAGS)
 
 test-up:
 	$(ANSIBLE) $(TEST_BOOK) $(SKIP_TAGS)
 
 restart:
 	$(ANSIBLE) books/restart.yml
 
 reboot:
 	$(ANSIBLE) books/reboot.yml
 
 stop:
 	$(ANSIBLE) books/stop.yml
 
+version:
+	$(ANSIBLE) --extra-vars="var=$(PROD_VARS)" books/versions.yml
+
+test-version:
+	$(ANSIBLE) --extra-vars="var=$(TEST_VARS)" books/versions.yml
+
 # Specific
 
 app:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-app $(SKIP_TAGS)
 
 test-app:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-app $(SKIP_TAGS)
 
 fs:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-fs $(SKIP_TAGS)
 
 test-fs:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-fs $(SKIP_TAGS)
 
 phd:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-phd $(SKIP_TAGS)
 
 test-phd:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-phd $(SKIP_TAGS)
 
 lbs:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-lbs $(SKIP_TAGS)
 
 test-lbs:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-lbs $(SKIP_TAGS)
 
 monit:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-monit $(SKIP_TAGS)
 
 test-monit:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-monit $(SKIP_TAGS)
 
 backup:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-backup $(SKIP_TAGS)
 
 dbs:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-dbs $(SKIP_TAGS)
 
 test-dbs:
 	$(ANSIBLE) $(TEST_BOOK) --tags conf-dbs $(SKIP_TAGS)
 
 ci:
 	$(ANSIBLE) $(PROD_BOOK) --tags jenkins $(SKIP_TAGS)
 
 ci-slave:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-ci-slave $(SKIP_TAGS)
 
 shib:
 	$(ANSIBLE) $(PROD_BOOK) --tags conf-shib $(SKIP_TAGS)
 
 gluster:
 	$(ANSIBLE) $(PROD_BOOK) --tags gluster $(SKIP_TAGS)
 
 common:
 	$(ANSIBLE) $(PROD_BOOK) --tags common --skip-tags init
 
 # Utils
 
 update-phab:
 	$(ANSIBLE) books/update_prod.yml
 
 test-update-phab:
 	$(ANSIBLE) books/update_test.yml
 
 security:
 	$(ANSIBLE) books/security-update.yml
 
 arbitrator:
 	$(ANSIBLE) books/arbitrator.yml
 
 clean:
 	$(ANSIBLE) books/cleanup.yml
diff --git a/books/main_prod.yml b/books/main_prod.yml
index f1e288a..5824bb9 100644
--- a/books/main_prod.yml
+++ b/books/main_prod.yml
@@ -1,35 +1,38 @@
 ---
 - name: Create Instances
   hosts: 127.0.0.1
   tags: always
   connection: local
   gather_facts: false
   vars_files:
     - "../vars/main.yml"
   tasks:
     - include: ../tasks/create-security-groups.yml
       tags: [ 'init' ]
     - include: ../tasks/create-instances.yml
       tags: [ 'always' ]
     - include: ../tasks/create-volumes.yml
       tags: [ 'init' ]
+    - shell: "git show-ref -s --head HEAD | head -n 1"
+      register: commit
+      tags: [ 'always' ]
 
 - include: main_servers.yml var=../vars/main.yml
 
 - name: Configure Backup server
   hosts: backup
   tags: conf-backup
   vars_files:
     - "../vars/main.yml"
   vars:
      nagios_nrpe_server_allowed_hosts: "86.119.30.4,127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/backup
diff --git a/books/main_servers.yml b/books/main_servers.yml
index 18856a9..dd184ac 100644
--- a/books/main_servers.yml
+++ b/books/main_servers.yml
@@ -1,240 +1,254 @@
 ---
 - name: Configure Jump Server
   hosts: lbs
   tags: conf-lbs
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_mynetworks: [ "{{ ip_range }}" ]
         enable_postfix_relayhost: false
       - role: ../roles/letsencrypt
         when: env != "test"
       - role: ../roles/haproxy
       - role: ../roles/jump
+  tasks:
+    - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 #- name: Configure keepalived for jump
 #  hosts: c4science-jump00
 #  roles:
 #      - role: ../rolesepalived
 #        keepalived_shared_ip: "{{ external_ip }}"
 #        keepalived_role: ../rolesaster"
 
 #- name: Configure keepalived for jump2
 #  hosts: c4science-jump01
 #  roles:
 #      - role: ../rolesepalived
 #        keepalived_shared_ip: "{{ external_ip }}"
 #        keepalived_role: ../roleslave"
+#  tasks:
+#    - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
 
 - name: Configure Monitoring Server
   hosts: monit
   tags: conf-monit
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/logcheck
       - role: ../roles/rsyslog
       - { role: ../roles/apache, apache_config: placeholder.conf }
       - role: ../roles/nagios
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmetad
   tasks:
       - include: ../roles/galera/tasks/install.yml
         yum_repo: ../roles/galera/files/yum.repo
       - service: name=mysql enabled=false state=stopped
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 - name: Configure Databases
   hosts: dbs
   tags: conf-dbs
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/galera
+  tasks:
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 - name: Configure App
   hosts: app
   tags: conf-app
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - { role: ../roles/apache, apache_config: phabricator.conf }
       - role: ../roles/glusterfs
         tags: ['gluster']
       - role: ../roles/phabricator
       - role: ../roles/shibboleth
+  tasks:
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 - name: Configure Filesystem for repositories
   hosts: fs
   tags: conf-fs
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/glusterfs
         tags: ['gluster']
       - role: ../roles/fs
         tags: ['gluster']
+  tasks:
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 - name: Configure App Daemons
   hosts: phd
   tags: conf-phd
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/glusterfs
         tags: ['gluster']
   tasks:
       - include: ../roles/phabricator/tasks/packages.yml
       - include: ../roles/phabricator/tasks/users.yml
       - include: ../roles/phabricator/tasks/glusterfs.yml
       - include: ../roles/phabricator/tasks/install.yml myconfig=../roles/phabricator/templates/myconfig.conf.php
       - include: ../roles/phabricator/tasks/daemons.yml
         phd_init: ../roles/phabricator/templates/phd_init
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
   handlers:
     - include: ../handlers/main.yml
 
 - name: Configure Jenkins master
   hosts: ci
   vars_files:
     - "{{ var }}"
   vars:
      nagios_nrpe_server_allowed_hosts: "{{ groups['monit'][0] }},127.0.0.1"
   user: centos
   sudo: yes
   roles:
       - role: ../roles/common
         tags: [ 'common' ]
       - role: ../roles/swap/roles/swap
         tags: [ 'common' ]
       - role: ../roles/nrpe
         tags: [ 'common', 'conf-monit' ]
       - role: ../roles/postfix
         postfix_relayhost: "[{{ hostvars['127.0.0.1']['openstackjump'].results[0]['openstack']['private_v4'] }}]"
         tags: [ 'common' ]
       - role: ../roles/ganglia-gmond
         tags: [ 'common' ]
       - role: ../roles/jenkins
         plugins:
           - 'preSCMbuildstep'
           - 'git'
           - 'build-token-root'
           - 'phabricator-plugin'
           - 'docker-plugin'
           - 'build-monitor-plugin'
           - 'job-restrictions'
           - 'project-stats-plugin'
           - 'cluster-stats'
           - 'embeddable-build-status'
         prefix: '/build'
         email:
           smtp_host: 'localhost'
           smtp_ssl: 'false'
           default_email_suffix: "@{{ domain }}"
       - role: ../roles
         tags: [ 'jenkins' ]
+  tasks:
+      - shell: "echo {{ hostvars['127.0.0.1']['commit']['stdout'] }} > /{{ project_name }}_version"
 
 #- name: Configure Jenkins slave
 #  hosts: ci-slave
 #  tags: conf-ci-slave
 #  vars_files:
 #    - "{{ var }}"
 #  user: core
 #  sudo: yes
 #  roles:
 #    - role: ../rolescker
diff --git a/books/main_test.yml b/books/main_test.yml
index bb9e0be..6919770 100644
--- a/books/main_test.yml
+++ b/books/main_test.yml
@@ -1,15 +1,18 @@
 ---
 - name: Create test Instances
   hosts: 127.0.0.1
   tags: always
   connection: local
   gather_facts: false
   vars_files:
     - "../vars/test.yml"
   tasks:
     - include: ../tasks/create-security-groups.yml
       tags: [ 'init' ]
     - include: ../tasks/create-instances.yml
       tags: [ 'always' ]
+    - shell: "git show-ref -s --head HEAD | head -n 1"
+      register: commit
+      tags: [ 'always' ]
 
 - include: main_servers.yml var=../vars/test.yml
diff --git a/books/versions.yml b/books/versions.yml
new file mode 100644
index 0000000..9f5d66c
--- /dev/null
+++ b/books/versions.yml
@@ -0,0 +1,23 @@
+---
+- name: Create Instances
+  hosts: 127.0.0.1
+  tags: always
+  connection: local
+  gather_facts: false
+  vars_files:
+    - "{{ var }}"
+  tasks:
+    - include: ../tasks/create-instances.yml
+      tags: [ 'always' ]
+
+- name: Get c4science versions
+  hosts: all
+  user: centos
+  sudo: yes
+  vars_files:
+    - "{{ var }}"
+  tasks:
+    - shell: "cat /{{ project_name }}_version"
+      register: res
+    - debug: msg="{{ res.stdout }}"
+