cors-tests: Increase timeouts for setup operations

Drive-bys:
* Only copy outputs when there are outputs to copy
* Print tracebacks when there's an issue running a selenium driver

Change-Id: I0807af4525a13a30baf27ada40eeabe311b44296

test/cors/main.py

@@ -22,6 +22,7 @@ import os.path
 import sys
 import threading
 import time
+import traceback
 
 from six.moves import urllib
 from six.moves import socketserver
@@ -101,7 +102,7 @@ def setup(args):
         ENV['OS_AUTH_URL'],
         ENV['OS_USERNAME'],
         ENV['OS_PASSWORD'],
-        timeout=5)
+        timeout=30)  # We've seen request times as high as 7-8s in the gate
     cluster_info = conn.get_capabilities()
     conn.put_container('private', {
         'X-Container-Read': '',
@@ -180,6 +181,9 @@ def run(args, url):
         try:
             browser = driver()
         except Exception as e:
+            if not ('needs to be in PATH' in str(e) or
+                    'SafariDriver was not found' in str(e)):
+                traceback.print_exc()
             results.append(('SKIP', browser_name, str(e).strip()))
             continue
         ran_one = True

tools/playbooks/cors/post.yaml

@@ -1,6 +1,11 @@
 - hosts: all
   become: true
   tasks:
+    - name: Check for geckodriver log
+      stat:
+        path: '{{ ansible_env.HOME }}/geckodriver.log'
+      register: geckodriver_output
+
     - name: Copy geckodriver log from worker nodes to executor node
       synchronize:
         src: '{{ ansible_env.HOME }}/geckodriver.log'
@@ -8,6 +13,12 @@
         mode: pull
         copy_links: true
         verify_host: true
+      when: geckodriver_output.stat.exists == true
+
+    - name: Check for CORS test output
+      stat:
+        path: '{{ ansible_env.HOME }}/cors-test-results.txt'
+      register: test_output
 
     - name: Copy CORS tests output from worker nodes to executor node
       synchronize:
@@ -16,6 +27,7 @@
         mode: pull
         copy_links: true
         verify_host: true
+      when: test_output.stat.exists == true
 
     - zuul_return:
         data:
@@ -23,3 +35,4 @@
             artifacts:
               - name: CORS test results
                 url: cors-test-results.txt
+      when: test_output.stat.exists == true