Updated tempest isolation options

This change updates the way that the packages are installed in an
isolated deployment. This ensures that our build packages are used
within the deployment while also allowing temptest to go online and
consume upstream packages from pypi. Additionally this updates
tempest-lib which is needed to make keystone w/ fernet tokens go as
there is an upstream issues with date timestamps with all versions
of tempest-lib that will prohibit the use of fernet tokens.

Change-Id: Ia479610b9ab69d64d1de756099d840b2ab331378
Related-Bug: #1466010

etc/openstack_deploy/user_group_vars.yml

@@ -157,3 +157,13 @@ heat_service_region: "{{ service_region }}"
 openrc_os_auth_url: "{{ keystone_service_internalurl }}"
 openrc_os_password: "{{ keystone_auth_admin_password }}"
 
+
+## Tempest Options
+tempest_pip_instructions: >
+  --isolated
+  --pre
+  --allow-all-external
+  --index-url {{ repo_pip_default_index }}
+  --extra-index-url https://pypi.python.org/simple
+  --trusted-host pypi.python.org
+  --trusted-host {{ openstack_upstream_domain }}

playbooks/defaults/repo_packages/openstack_other.yml

@@ -39,8 +39,10 @@ requirements_git_dest: "/opt/requirements_{{ requirements_git_install_branch | r
 ## Tempest Library
 tempestlib_git_repo: https://github.com/openstack/tempest-lib
 tempestlib_git_install_branch: 061a2efc71ccce9024f86517edccdb4c82d416bc # HEAD of "master" as of 22.06.2015
+tempestlib_git_install_fragments: "yaprtignorerequirements=true"
 tempestlib_git_dest: "/opt/tempest-lib_{{ requirements_git_install_branch | replace('/', '_') }}"
 
+
 ## Cryptography
 # NOTE(sigmavirus24): Fix this when cryptography 1.0 is released and
 # global-requirements.txt allows for it. See also:

playbooks/roles/os_tempest/defaults/main.yml

@@ -82,7 +82,6 @@ tempest_requires_pip_packages:
   - python-swiftclient
   - python-troveclient
   - python-tuskarclient
-  - python-memcached
   - virtualenv
 
 tempest_pip_packages:
@@ -102,3 +101,4 @@ tempest_images:
     name: "cirros-0.3.3-x86_64-disk.img"
 
 tempest_enable_instance_password: True
+tempest_pip_instructions: "--isolated"

playbooks/roles/os_tempest/tasks/tempest_install.yml

@@ -38,6 +38,7 @@
   delay: 2
   tags:
     - tempest-git-clone
+    - tempest-pip-install
 
 - name: Install pip packages for tempest
   pip:
@@ -45,7 +46,7 @@
     state: present
     virtualenv: "{{ tempest_git_dest }}"
     virtualenv_site_packages: "yes"
-    extra_args: "--isolated"
+    extra_args: "{{ tempest_pip_instructions }}"
   register: install_packages
   until: install_packages|success
   retries: 5