Updates for tempest in functional tests

This commit does the following:

- adds tempest_log_dir variable so that /var/log/utility is not assumed
- adds oslo.concurrency and pyOpenSSL to tempest_pip_packages as
  tempest fails to run when it's built on the fly in a role's
  functional test

Note that a subsequent change has been made to openstack-ansible to set
tempest_log_dir to /var/log/utility.

Additionally, this role needs to be refactored so we can install
tempest similar to how other roles install their python software, which
would cause us to not have to track tempest dependencies in
tempest_pip_packages.

Depends-On: I907b7b416cf03d88c9b015b3265a216c51a0c7da

Change-Id: I74ee0f4df3066338f0810c322387399ba1a93a6b

defaults/main.yml

@@ -93,7 +93,9 @@ tempest_pip_packages:
   - fixtures
   - junitxml
   - nose
+  - oslo.concurrency
   - oslo.serialization
+  - pyOpenSSL
   - python-ceilometerclient
   - python-cinderclient
   - python-glanceclient
@@ -126,3 +128,5 @@ tempest_enable_instance_password: True
 
 ## Tunable overrides
 tempest_tempest_conf_overrides: {}
+
+tempest_log_dir: "/var/log/tempest"

templates/openstack_tempest_gate.sh.j2

@@ -194,9 +194,9 @@ result=$?
 # Create junit xml report from test results
 testr last --subunit | subunit2junitxml > tempest_results.xml
 cp tempest_results.xml /tmp
-if [ -d "/var/log/utility" ];then
-  # Copy the log to the utility logging directory
-  cp tempest_results.xml /var/log/utility/tempest_results_$(date +%Y%d%m-%H%M%S).xml
+if [ -d "{{ tempest_log_dir }}" ];then
+  # Copy the log to the tempest_log_dir logging directory
+  cp tempest_results.xml {{ tempest_log_dir }}/tempest_results_$(date +%Y%d%m-%H%M%S).xml
 fi
 popd
 

templates/tempest.conf.j2

@@ -4,7 +4,7 @@
 debug = {{ debug }}
 verbose = {{ verbose }}
 fatal_deprecations = {{ tempest_fatal_deprecations }}
-log_file = /var/log/utility/tempest.log
+log_file = {{ tempest_log_dir}}/tempest.log
 use_stderr = false