Add testcase_stats role to publish testcase_stats HTML on openQA

As with fedora_nightlies, I'm offloading this from my personal
domain. Happily this one doesn't need a consumer, it just runs
hourly. Again we just dump the output in openQA's public dir.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

inventory/group_vars/testcase_stats

@@ -0,0 +1 @@
+testcase_stats_output_dir: /usr/share/openqa/public/testcase_stats

inventory/inventory

@@ -570,6 +570,9 @@ openqa01.iad2.fedoraproject.org
 [fedora_nightlies]
 openqa01.iad2.fedoraproject.org
 
+[testcase_stats]
+openqa01.iad2.fedoraproject.org
+
 [resultsdb:children]
 resultsdb_stg
 resultsdb_prod

playbooks/groups/openqa.yml

@@ -212,13 +212,14 @@
 
 # relvalconsumer isn't particularly related to openQA in any way, we
 # just put that role on these boxes. There's nowhere more obviously
-# correct for it, really. Ditto fedora_nightlies
+# correct for it, really. Ditto fedora_nightlies and testcase_stats
   roles:
    - { role: openqa/server, tags: ['openqa_server'] }
    - { role: openqa/dispatcher, tags: ['openqa_dispatcher'] }
    - { role: check-compose, tags: ['check-compose'], when: "checkcompose_env_suffix is defined" }
    - { role: relvalconsumer, tags: ['relvalconsumer'], when: "relvalconsumer_env_suffix is defined" }
    - { role: fedora_nightlies, tags: ['fedora_nightlies'], when: "fedora_nightlies_amqp_queue is defined" }
+   - { role: testcase_stats, tags: ['testcase_stats'], when: "testcase_stats_output_dir is defined" }
 
   handlers:
    - import_tasks: "{{ handlers_path }}/restart_services.yml"

roles/testcase_stats/tasks/main.yml

@@ -0,0 +1,17 @@
+# This role installs relval (if needed) and deploys a cron drop-in to
+# run `relval testcase-stats` for the next Fedora release once an hour
+# and dump the output to a configured location.
+
+# Required vars
+# - testcase_stats_output_dir
+##      string - Directory where the output should be written.
+
+- name: Install required packages
+  package:
+    name: relval
+    state: present
+  tags:
+  - packages
+
+- name: Deploy the cronjob
+  template: src=testcase_stats.cron dest=/etc/cron.hourly/testcase_stats owner=root group=root mode=0755

roles/testcase_stats/templates/testcase_stats.cron

@@ -0,0 +1,4 @@
+#!/bin/sh
+relval testcase-stats --release {{ FedoraCycleNumber|int + 1 }} --out {{ testcase_stats_output_dir }}/{{ FedoraCycleNumber|int + 1 }} > /dev/null 2>&1
+chmod 0755 {{ testcase_stats_output_dir }}/{{ FedoraCycleNumber|int + 1 }}
+restorecon -r {{ testcase_stats_output_dir }}/{{ FedoraCycleNumber|int + 1 }}