Remove octavia_requires_pip_packages

In order to reduce the packages required to pip install on to the hosts,
we use service delegation to octavia_service_setup_host so that instead
of installing software on the target host, and putting credentials on
every target host, we isolate the software and credentials to a single
host.

In this patch we finally remove octavia_requires_pip_packages as it is
no longer required given that all services use delegation to the
octavia_service_setup_host now. We also remove the task which used to
install them.

We also remove the meta dependency on the openstack_openrc role because
the target host does not require openrc/clouds.yaml any more.

We remove the variable 'octavia_ansible_endpoint_type' as it is no longer
used.

We finally remove the python-pip package from the distro packages, as
with these changes, pip is no longer required on the host - everything
installed by pip is isolated into a venv.

Change-Id: If3f65fdb8a59a3c41cb8c2f0dee6b2e5a71f05c7

defaults/main.yml

@@ -112,7 +112,6 @@ octavia_service_project_domain_id: default
 octavia_service_user_domain_id: default
 octavia_keystone_auth_plugin: "{{ octavia_keystone_auth_type }}"
 octavia_keystone_auth_type: password
-octavia_ansible_endpoint_type: "internal" # endpoint for ansible
 
 ## octavia api service type and data
 octavia_service_name: octavia
@@ -138,14 +137,6 @@ octavia_plugin_dirs:
   - /usr/lib/octavia
   - /usr/local/lib/octavia
 
-# octavia packages that must be installed before anything else
-octavia_requires_pip_packages:
-  - httplib2
-  - python-keystoneclient # Keystoneclient needed to OSA keystone lib
-  - shade
-  - virtualenv
-  - python-openstackclient
-
 # Common pip packages
 octavia_pip_packages:
   - cryptography

meta/main.yml

@@ -34,4 +34,3 @@ dependencies:
     when:
       - ansible_pkg_mgr == 'apt'
   - galera_client
-  - openstack_openrc

releasenotes/notes/octavia-service-setup-host-d57533fdea394394.yaml

@@ -12,7 +12,14 @@ features:
       octavia_service_setup_host: "{{ groups['utility_all'][0] }}"
 
 deprecations:
+  - |
+    The variable ``octavia_requires_pip_packages`` is no longer required
+    and has therefore been removed.
   - |
     The variable ``octavia_image_downloader`` has been removed. The image
     download now uses the same host designated by the
     ``octavia_service_setup_host`` for the image download.
+  - |
+    The variable ``octavia_ansible_endpoint_type`` has been removed. The
+    endpoint used for ansible tasks has been hard set to the 'admin'
+    endpoint as is commonly used across all OSA roles.

tasks/octavia_install.yml

@@ -33,19 +33,6 @@
       {% endfor %}
   when: octavia_developer_mode | bool
 
-- name: Install required pip packages
-  pip:
-    name: "{{ octavia_requires_pip_packages }}"
-    state: "{{ octavia_pip_package_state }}"
-    extra_args: >-
-      {{ octavia_developer_mode | ternary(pip_install_developer_constraints | default('--constraint /opt/developer-pip-constraints.txt'), '') }}
-      {{ (pip_install_upper_constraints is defined) | ternary('--constraint ' + pip_install_upper_constraints | default(''),'') }}
-      {{ pip_install_options | default('') }}
-  register: install_packages
-  until: install_packages is success
-  retries: 5
-  delay: 2
-
 - name: Retrieve checksum for venv download
   uri:
     url: "{{ octavia_venv_download_url | replace('tgz', 'checksum') }}"

vars/ubuntu.yml

@@ -21,4 +21,3 @@ octavia_distro_packages:
   - iptables-persistent
   - libxml2-dev
   - netfilter-persistent
-  - python-pip