Skip status code check and make vagrant install quicker

Under some failure conditions, the status code is not returned.

Also skip the agent/os build steps for install inside of vagrant
which can add a substantial amount of time to the build process.

And minor revision to the test-bifrost.yaml conditional as the
pattern was traditionally "is defined", but when running the test
scripts, most things are defined, so it was just a side effect of
changes being purely tested in CI over time.

Change-Id: Icf132b71b243f9fce9d1c2afca656299befcfabc

playbooks/roles/bifrost-ironic-install/tasks/download_ipa_image.yml

@@ -55,7 +55,7 @@
     force: yes
   register: ipa_kernel_download_done
   until: ipa_kernel_download_done|succeeded or
-         (ipa_kernel_download_done|failed and ipa_kernel_download_done.status_code == 404)
+         (ipa_kernel_download_done|failed)
   retries: 5
   delay: 10
   environment: "{{ venv }}"

playbooks/test-bifrost.yaml

@@ -68,7 +68,7 @@
     - name: "Use a cached cirros image"
       set_fact:
         cirros_deploy_image_upstream_url: file:///opt/cache/files/cirros-0.4.0-x86_64-disk.img
-      when: ci_testing is defined
+      when: ci_testing is defined and ci_testing_zuul is defined and ci_testing_zuul
   roles:
     - role: bifrost-keystone-install
     - role: bifrost-ironic-install

tools/vagrant_dev_env/vagrant.yml

@@ -98,7 +98,7 @@
       become: yes
 
     - name: Install Bifrost
-      command: ansible-playbook -vvvv -i inventory/target install.yaml -e network_interface={{network_interface}} -e ansible_python_interpreter="/usr/bin/python3"
+      command: ansible-playbook -vvvv -i inventory/target install.yaml -e network_interface={{network_interface}} -e ansible_python_interpreter="/usr/bin/python3" -e download_ipa=true -e use_cirros=true
       environment:
           PATH: "{{ansible_env.HOME}}/.local/bin:{{ansible_env.PATH}}"
       args: