adding play to set the hostname to the deploy host

playbooks/edx-east/set_hostname.yml

+# This is a utility play to set a hostname
+# on a server
+
+- name: Set hostname
+  hosts: all
+  sudo: True
+  gather_facts: False
+  tasks:
+    - fail: msg="you must pass a hostname_fqdn var into this play"
+      when: hostname_fqdn is not defined
+    - name: Set hostname
+      hostname: name={{ hostname_fqdn.split('.')[0] }}
+    - name: Update /etc/hosts
+      lineinfile: >
+        dest=/etc/hosts
+        regexp="^127\.0\.1\.1"
+        line="127.0.1.1{{'\t'}}{{ hostname_fqdn.split('.')[0] }}{{'\t'}}{{ hostname_fqdn }}{{'\t'}}localhost"
+        state=present

util/jenkins/ansible-provision.sh

@@ -179,4 +179,7 @@ fi
 # deploy the edx_ansible role
 ansible-playbook edx_ansible.yml -i "${deploy_host}," -e@${extra_vars_file} -e@${WORKSPACE}/configuration-secure/ansible/vars/developer-sandbox.yml --user ubuntu
 
+# set the hostname
+ansible-playbook set_hostname.yml -i "${deploy_host}," -e hostname_fqdn=${deploy_host} --user ubuntu
+
 rm -f "$extra_vars_file"