Allow customisation of AIO paths and filenames

In order to cater for implementations which 'overlay' or 'wrap'
OSA and use the AIO bootstrap process, the following changes
are implemented:

- The paths to source the configuration files and scripts are
  now customisable so that the role may be executed by a
  playbook that is not in the OSA repository.
- The path of the conf.d files may be provided to the role in
  order to allow conf.d files to be sourced from outside the
  OSA repository.
- The resulting file names for the user_variables and
  user_secrets configuration are now customisable.

Change-Id: I453342c88a6768641c96e3ff174aaeec5d554845

releasenotes/notes/aio-config-path-82cda1de6d1dfad7.yaml

@@ -0,0 +1,14 @@
+---
+features:
+  - It is now possible to customise the location of the configuration
+    file source for the All-In-One (AIO) bootstrap process using the
+    ``bootstrap_host_aio_config_path`` variable.
+  - It is now possible to customise the location of the scripts used
+    in the All-In-One (AIO) boostrap process using the
+    ``bootstrap_host_aio_script_path`` variable.
+  - It is now possible to customise the name of the
+    ``user_variables.yml`` file created by the All-In-One (AIO) bootstrap
+    process using the ``bootstrap_host_user_variables_filename`` variable.
+  - It is now possible to customise the name of the
+    ``user_secrets.yml`` file created by the All-In-One (AIO) bootstrap
+    process using the ``bootstrap_host_user_secrets_filename`` variable.

tests/roles/bootstrap-host/defaults/main.yml

@@ -13,12 +13,23 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+## AIO user-space configuration options
 # Scenario used to bootstrap the host
 bootstrap_host_scenario: aio
-
+#
 # Boolean option to implement OpenStack-Ansible configuration for an AIO
 # Switch to no for a multi-node configuration
 bootstrap_host_aio_config: yes
+#
+# Path to the location of the bootstrapping configuration files
+bootstrap_host_aio_config_path: "{{ playbook_dir }}/../etc/openstack_deploy"
+#
+# Path to the location of the scripts the bootstrap scripts use
+bootstrap_host_aio_script_path: "{{ playbook_dir }}/../scripts"
+#
+# The user space configuration file names to use
+bootstrap_host_user_variables_filename: "user_variables.yml"
+bootstrap_host_user_secrets_filename: "user_secrets.yml"
 
 ## Swap memory
 # If there is no swap memory present, the bootstrap will create a loopback disk

tests/roles/bootstrap-host/tasks/prepare_aio_config.yml

@@ -27,7 +27,7 @@
 
 - name: Deploy user conf.d configuration
   config_template:
-    src: "../etc/openstack_deploy/conf.d/{{ item.name }}"
+    src: "{{ item.path | default(bootstrap_host_aio_config_path ~ '/conf.d') }}/{{ item.name }}"
     dest: "/etc/openstack_deploy/conf.d/{{ item.name | regex_replace('.aio$', '') }}"
     config_overrides: "{{ item.override | default({}) }}"
     config_type: "yaml"
@@ -37,7 +37,7 @@
 
 - name: Deploy openstack_user_config
   config_template:
-    src: "../etc/openstack_deploy/openstack_user_config.yml.aio"
+    src: "{{ bootstrap_host_aio_config_path }}/openstack_user_config.yml.aio"
     dest: "/etc/openstack_deploy/openstack_user_config.yml"
     config_overrides: "{{ openstack_user_config_overrides | default({}) }}"
     config_type: "yaml"
@@ -47,15 +47,15 @@
 
 - name: Deploy user_secrets file
   config_template:
-    src: "../etc/openstack_deploy/user_secrets.yml"
-    dest: "/etc/openstack_deploy/user_secrets.yml"
+    src: "{{ bootstrap_host_aio_config_path }}/user_secrets.yml"
+    dest: "/etc/openstack_deploy/{{ bootstrap_host_user_secrets_filename }}"
     config_overrides: "{{ user_secrets_overrides | default({}) }}"
     config_type: "yaml"
   tags:
     - deploy-user-secrets
 
 - name: Generate any missing values in user_secrets
-  command: ../scripts/pw-token-gen.py --file /etc/openstack_deploy/user_secrets.yml
+  command: "{{ bootstrap_host_aio_script_path }}/pw-token-gen.py --file /etc/openstack_deploy/{{ bootstrap_host_user_secrets_filename }}"
   changed_when: false
   tags:
     - generate_secrets
@@ -85,7 +85,7 @@
   register: pip_conf_file
 
 - name: Determine the fastest available OpenStack-Infra wheel mirror
-  command: ../scripts/fastest-infra-wheel-mirror.py
+  command: "{{ bootstrap_host_aio_script_path }}/fastest-infra-wheel-mirror.py"
   register: fastest_wheel_mirror
   when: not pip_conf_file.stat.exists
 
@@ -107,7 +107,7 @@
 - name: Set the user_variables
   config_template:
     src: "user_variables.{{ bootstrap_host_scenario }}.yml.j2"
-    dest: /etc/openstack_deploy/user_variables.yml
+    dest: "/etc/openstack_deploy/{{ bootstrap_host_user_variables_filename }}"
     config_overrides: "{{ user_variables_overrides | default({}) }}"
     config_type: yaml