Add additional checks for nginx

Validate nginx service is running and also collect some logs.

Change-Id: I3d3daf0344d978cf72ea171e84e3f1439725d990
Depends-On: https://review.openstack.org/648850
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

playbooks/roles/test.zuul-web/tasks/main.yaml

@@ -30,3 +30,10 @@
   when: zuul_service_zuul_web_state in ['reloaded', 'restarted', 'started']
   tags:
     - skip_ansible_lint
+
+- name: Ensure nginx is running
+  become: true
+  shell: /usr/sbin/service nginx status
+  changed_when: false
+  tags:
+    - skip_ansible_lint

tests/collect-logs.yaml

@@ -211,6 +211,7 @@
       args:
         creates: "{{ zuul_output_dir }}/logs/logs/{{ inventory_hostname }}/var/log/journal/{{ item }}.service.log"
       with_items:
+        - nginx
         - zuul-web
 
     - name: Collect zuul-web log files
@@ -226,5 +227,7 @@
       with_items:
         - /etc/zuul/web-logging.conf
         - /etc/zuul/zuul.conf
+        - /var/log/nginx/access.log
+        - /var/log/nginx/error.log
         - /var/log/zuul/web-debug.log
         - /var/log/zuul/web.log