playbooks: Convert venv_python_path to proper role

The venv_python_path tasks were in the roles directroy but we were
including it as a normal file with a list of tasks so it was not really
an Ansible role. This does not work well when we use the Bifrost roles
outside of bifrost since Ansible does not know where to find this file
for inclusion. Our best chance is to convert it to a simple role which
can be statically imported.

Change-Id: I82fdfe48f9f2eb631165ab630157bc378ddc631d

playbooks/roles/bifrost-create-dib-image/tasks/main.yml

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 - name: Ensure required packages are installed
   package:
     name: "{{ dib_host_required_packages }}"

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

@@ -15,7 +15,8 @@
 ---
 # This is overly complex, however get_url will always re-retrieve the file
 # if it already exists, and this is to prevent that behavior.
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: "Test if IPA kernel is present"
   stat: path={{ ipa_kernel }}

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

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: Create {{ ipxe_dir }}
   file:

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

@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: "Update Package Cache"
   apt: update_cache=yes

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

@@ -39,7 +39,8 @@
       ironic.keystone.default_username is undefined or
       ironic.keystone.default_password is undefined
 
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: "Ensure service project is present"
   os_project:

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

@@ -38,7 +38,8 @@
       ironic_inspector.keystone.default_username is undefined or
       ironic_inspector.keystone.default_password is undefined
 
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: "Create service user for ironic-inspector"
   os_user:

playbooks/roles/bifrost-keystone-install/tasks/install.yml

@@ -11,7 +11,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ---
-- include: roles/common/venv_python_path.yml
+- import_role:
+    name: venv_python_path
 
 - name: "Install packages"
   action: "{{ ansible_pkg_mgr }} name={{ item }} state=present"