Switch to cirros 0.4.0

Change-Id: Idb1094395938cbf5c04b181f93042736a21ce082

doc/source/install/offline-install.rst

@@ -45,7 +45,7 @@ this.
 
     ipa_kernel_upstream_url: file:///vagrant/ipa-centos7-master.kernel
     ipa_ramdisk_upstream_url: file:///vagrant/ipa-centos7-master.initramfs
-    cirros_deploy_image_upstream_url: file:///vagrant/cirros-0.3.4-x86_64-disk.img
+    cirros_deploy_image_upstream_url: file:///vagrant/cirros-0.4.0-x86_64-disk.img
     dib_git_url: file:///vagrant/git/diskimage-builder
     ironicclient_git_url: file:///vagrant/git/python-ironicclient
     shade_git_url: file:///vagrant/git/shade

playbooks/roles/bifrost-ironic-install/defaults/main.yml

@@ -69,7 +69,7 @@ deploy_image: "{{http_boot_folder}}/{{deploy_image_filename}}"
 use_cirros: false
 # Download IPA by default
 download_ipa: true
-cirros_deploy_image_upstream_url: https://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img
+cirros_deploy_image_upstream_url: https://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img
 # By default bifrost will deploy dnsmasq to utilize as an integrated DHCP
 # server.  If you already have a DHCP server, you will need to disable
 # this setting, and perform manual configuration of your DHCP server.

playbooks/test-bifrost.yaml

@@ -67,7 +67,7 @@
       when: ci_testing is defined
     - name: "Use a cached cirros image"
       set_fact:
-        cirros_deploy_image_upstream_url: file:///opt/cache/files/cirros-0.3.4-x86_64-disk.img
+        cirros_deploy_image_upstream_url: file:///opt/cache/files/cirros-0.4.0-x86_64-disk.img
       when: ci_testing is defined
   roles:
     - role: bifrost-keystone-install