Don't nest installation variables under a params key

We're needlessly nesting "install" under "params".
Let's not do that.

Change-Id: Ia8ed491bd92d8989a8423a9fbe3a8deb705e7dd7

defaults/main.yml

@@ -17,24 +17,23 @@
 #  along with ARA.  If not, see <http://www.gnu.org/licenses/>.
 
 ara:
-  params:
-    install:
-      # The method used to install ARA ('pip' or 'distribution')
-      method: pip
-      pip:
-        # If ARA should be installed inside a virtualenv
-        virtualenv: true
-        # Location where the virtualenv should be installed
-        virtualenv_path: /opt/ara-venv
-        # Method to install ARA with pip ('pypi' or 'source')
-        method: pypi
-        # When installing from source, location of the repository
-        # When installing from a source on the filesystem, only specify the path to the repository
-        source: git+https://git.openstack.org/openstack/ara
-        # When installing from pypi, version to install (ex: '0.15.0')
-        # When installing from source, ref to the commit, tag or branch to install
-        # Defaults to the latest version on PyPi or the master branch when installing from source
-        version:
+  install:
+    # The method used to install ARA ('pip' or 'distribution')
+    method: pip
+    pip:
+      # If ARA should be installed inside a virtualenv
+      virtualenv: true
+      # Location where the virtualenv should be installed
+      virtualenv_path: /opt/ara-venv
+      # Method to install ARA with pip ('pypi' or 'source')
+      method: pypi
+      # When installing from source, location of the repository
+      # When installing from a source on the filesystem, only specify the path to the repository
+      source: git+https://git.openstack.org/openstack/ara
+      # When installing from pypi, version to install (ex: '0.15.0')
+      # When installing from source, ref to the commit, tag or branch to install
+      # Defaults to the latest version on PyPi or the master branch when installing from source
+      version:
   config:
     database: "sqlite:////var/lib/ara/ansible.sqlite"
     # Host to listen on for embedded server, apache or nginx

tasks/install/pip.yml

@@ -36,26 +36,26 @@
   pip:
     name: setuptools
     state: latest
-    virtualenv: "{{ ara.params.install.pip.virtualenv_path }}"
-  when: ara.params.install.pip.virtualenv | bool
+    virtualenv: "{{ ara.install.pip.virtualenv_path }}"
+  when: ara.install.pip.virtualenv | bool
 
 - name: Install ARA with pip
   become: true
   vars:
     # Manage that the 'version' argument doesn't work when installing from source
     pkg_name: |
-      {%- if ara.params.install.pip.method == 'source' and ara.params.install.pip.version -%}
-      {{- ara.params.install.pip.source }}@{{ ara.params.install.pip.version | default('master') -}}
+      {%- if ara.install.pip.method == 'source' and ara.install.pip.version -%}
+      {{- ara.install.pip.source }}@{{ ara.install.pip.version | default('master') -}}
       {%- else -%}
       ara
       {%- endif -%}
   pip:
     name: "{{ pkg_name }}"
-    version: "{{ ara.params.install.pip.version | default(omit, True) }}"
+    version: "{{ ara.install.pip.version | default(omit, True) }}"
     state: present
-    virtualenv: "{{ ara.params.install.pip.virtualenv | bool | ternary(ara.params.install.pip.virtualenv_path, omit) }}"
+    virtualenv: "{{ ara.install.pip.virtualenv | bool | ternary(ara.install.pip.virtualenv_path, omit) }}"
 
 - name: Suffix the virtualenv bin directory to PATH
   set_fact:
-    path_with_virtualenv: "{{ ara.params.install.pip.virtualenv_path }}/bin:{{ ansible_env.PATH }}"
-  when: ara.params.install.pip.virtualenv | bool
+    path_with_virtualenv: "{{ ara.install.pip.virtualenv_path }}/bin:{{ ansible_env.PATH }}"
+  when: ara.install.pip.virtualenv | bool

tasks/main.yml

@@ -30,7 +30,7 @@
     - ara_override is mapping
 
 - name: Include ARA installation
-  include_tasks: "install/{{ ara.params.install.method }}.yml"
+  include_tasks: "install/{{ ara.install.method }}.yml"
 
 - name: Create user for ARA
   become: true

templates/apache_mod_wsgi.conf.j2

@@ -6,11 +6,11 @@
     CustomLog {{ apache_log_path }}/ara-access.log combined
 
     SetEnv ANSIBLE_CONFIG /etc/ara/ara.cfg
-    {% if ara.params.install.pip.virtualenv -%}
+    {% if ara.install.pip.virtualenv -%}
     SetEnv ARA_WSGI_USE_VIRTUALENV 1
-    SetEnv ARA_WSGI_VIRTUALENV_PATH {{ ara.params.install.pip.virtualenv_path }}
+    SetEnv ARA_WSGI_VIRTUALENV_PATH {{ ara.install.pip.virtualenv_path }}
 
-    WSGIDaemonProcess ara user=ara group=ara processes=1 threads=4 python-home={{ ara.params.install.pip.virtualenv_path }}
+    WSGIDaemonProcess ara user=ara group=ara processes=1 threads=4 python-home={{ ara.install.pip.virtualenv_path }}
     {% else -%}
     WSGIDaemonProcess ara user=ara group=ara processes=1 threads=4
     {% endif -%}