vm-bootstrap: configure hosts file witn hostname of all vm in cluster

playbook/roles/vm-bootstrap/files/format_hosts

+#!/usr/bin/python
+
+import sys
+
+print sys.argv[1:]
+
+host_content = open('/etc/hosts', 'r').read()
+hpath = sys.argv[1]
+domain = sys.argv[2]
+
+with open('/etc/hosts', 'a') as hosts:
+  for content in open(hpath, 'r').readlines():
+    if content:
+      items = content.strip().split(' ')
+      entry = "%s  %s.%s %s" % (items[1], items[0], domain, items[0])
+      print entry
+      if not entry in host_content:
+        hosts.write(entry)
+        hosts.write('\n')
+  

playbook/roles/vm-bootstrap/tasks/hostname.yml

@@ -8,6 +8,10 @@
     get_url: url=http://10.0.2.100/ipv4 dest=/etc/opt/ipv4 mode=666
     ignore_errors: True
 
+  - name: Download cluster.hash
+    get_url: url=http://10.0.2.100/cluster.hash dest=/tmp/cluster.hash mode=666
+    ignore_errors: True
+
   - name: stat /etc/opt/hostname
     stat: path=/etc/opt/hostname
     register: hostname_file
@@ -16,6 +20,10 @@
     stat: path=/etc/opt/ipv4
     register: ipv4_file
 
+  - name: stat /tmp/cluster.hash
+    stat: path=/tmp/cluster.hash
+    register: cluster_hash
+
   - name: replace /etc/hostname
     copy: src=/etc/opt/hostname dest=/etc/hostname mode=666
     when: hostname_file.stat.exists == True
@@ -32,6 +40,18 @@
     lineinfile: dest=/etc/hosts line="{{ lookup('file', '/etc/opt/ipv4') }}  {{ lookup('file', '/etc/opt/hostname') }}.tl.teralab-datascience.fr {{ lookup('file', '/etc/opt/hostname') }}" 
     when: hostname_file.stat.exists == True
 
+  - name: setting cluster 
+    get_url: url="{{ lookup('file', '/tmp/cluster.hash') }}/hosts" dest=/tmp/hosts mode=666 validate_certs=no
+    when: cluster_hash.stat.exists == True
+
+  - name: stat /tmp/hosts
+    stat: path=/tmp/hosts
+    register: hostname_file
+
+  - name: Format hosts
+    script: format_hosts /tmp/hosts tl.teralab-datascience.fr 
+    when: cluster_hash.stat.exists == True
+
   - name: managing resolv.conf file
     lineinfile: dest=/etc/resolv.conf line="search tl.teralab-datascience.fr"