Update role for new source build process

The variables trove_developer_mode and trove_venv_download
no longer carry any meaning. This review changes trove to
do the equivalent of what developer_mode was all the time,
meaning that it always builds the venv and never requires
the repo server, but it will use a repo server when available.

As part of this, we move the source build out of its own file
because it's now a single task to include the venv build role.
This is just to make it easier to follow the code.

Change-Id: I08c864eaef894074326d765bb424fa6b98ec0ed2

defaults/main.yml

@@ -78,32 +78,18 @@ trove_conductor_workers: "{{ [[ansible_processor_vcpus|default(2) // 2, 1] | max
 # Enable/Disable Ceilometer
 trove_ceilometer_enabled: False
 
-# TODO(odyssey4me):
-# This can be simplified once all the roles are using
-# python_venv_build. We can then switch to using a
-# set of constraints in pip.conf inside the venv,
-# perhaps prepared by giving a giving a list of
-# constraints to the role.
-trove_pip_install_args: >-
-  {{ trove_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('') }}
+trove_pip_install_args: "{{ pip_install_options | default('') }}"
 
 # Name of the virtual env to deploy into
 trove_venv_tag: "{{ venv_tag | default('untagged') }}"
 trove_bin: "/openstack/venvs/trove-{{ trove_venv_tag }}/bin"
 
-# venv_download, even when true, will use the fallback method of building the
-# venv from scratch if the venv download fails.
-trove_venv_download: "{{ not trove_developer_mode | bool }}"
-trove_venv_download_url: http://127.0.0.1/venvs/untagged/ubuntu/trove.tgz
-
 trove_git_repo: "https://git.openstack.org/openstack/trove"
 trove_git_install_branch: master
-
-trove_developer_mode: false
-trove_developer_constraints:
+trove_upper_constraints_url: "{{ requirements_git_url | default('https://git.openstack.org/cgit/openstack/requirements/plain/upper-constraints.txt?h=' ~ requirements_git_install_branch | default('master')) }}"
+trove_git_constraints:
   - "git+{{ trove_git_repo }}@{{ trove_git_install_branch }}#egg=trove"
+  - "--constraint {{ trove_upper_constraints_url }}"
 
 #: Set this to false to disable API service through Apache + mod_wsgi
 trove_use_mod_wsgi: false
@@ -165,6 +151,9 @@ trove_oslomsg_notify_vhost: "{{ trove_oslomsg_rpc_vhost }}"
 # TODO(ansmith): Change structure when more backends will be supported
 trove_oslomsg_amqp1_enabled: "{{ trove_oslomsg_rpc_transport == 'amqp' }}"
 
+# Specific pip packages provided by the user
+trove_user_pip_packages: []
+
 # Rabbit vars
 trove_control_exchange: trove
 trove_rabbit_notification_topic: notification

tasks/main.yml

@@ -39,7 +39,20 @@
   tags:
     - trove-install
 
-- include_tasks: trove_install.yml
+- name: Install the python venv
+  import_role:
+    name: "python_venv_build"
+  vars:
+    venv_build_constraints: "{{ trove_git_constraints }}"
+    venv_install_destination_path: "{{ trove_bin | dirname }}"
+    venv_install_distro_package_list: "{{ trove_distro_packages }}"
+    venv_pip_install_args: "{{ trove_pip_install_args }}"
+    venv_pip_packages: "{{ trove_pip_packages | union(trove_user_pip_packages) +
+    (trove_oslomsg_amqp1_enabled | bool) | ternary(trove_optional_oslomsg_amqp1_pip_packages, []) }}"
+    venv_facts_when_changed:
+      - section: "trove"
+        option: "venv_tag"
+        value: "{{ trove_venv_tag }}"
   tags:
     - trove-install
 

tasks/trove_install.yml

@@ -1,52 +0,0 @@
----
-# Copyright 2016 Internet Solutions (Pty) Ltd
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#    http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-# (c) 2016 Donovan Francesco <donovan.francesco@is.co.za>
-# (c) 2016 Paul Stevens <paul.stevens@is.co.za>
-
-# TODO(odyssey4me):
-# This can be simplified once all the roles are using
-# python_venv_build. We can then switch to using a
-# set of constraints in pip.conf inside the venv,
-# perhaps prepared by giving a giving a list of
-# constraints to the role.
-- name: Create developer mode constraint file
-  copy:
-    dest: "/opt/developer-pip-constraints.txt"
-    content: |
-      {% for item in trove_developer_constraints %}
-      {{ item }}
-      {% endfor %}
-  when:
-    - trove_developer_mode | bool
-
-- name: Ensure remote wheel building is disabled in developer mode
-  set_fact:
-    venv_build_host: "{{ ansible_hostname }}"
-  when:
-    - trove_developer_mode | bool
-
-- name: Install the python venv
-  include_role:
-    name: "python_venv_build"
-  vars:
-    venv_install_destination_path: "{{ trove_bin | dirname }}"
-    venv_install_distro_package_list: "{{ trove_distro_packages }}"
-    venv_pip_install_args: "{{ trove_pip_install_args }}"
-    venv_pip_packages: "{{ (trove_oslomsg_amqp1_enabled | bool) | ternary(trove_pip_packages + trove_optional_oslomsg_amqp1_pip_packages, trove_pip_packages) }}"
-    venv_facts_when_changed:
-      - section: "trove"
-        option: "venv_tag"
-        value: "{{ trove_venv_tag }}"