Add grafana dashboard for status.o.o/zuul

This is our first grafyaml dashboard which reproduces the current
graphs on status.o.o/zuul rendered by graphite. While we aren't
actually running grafyaml upstream yet, we can get started on building
our dashboards.

We also added a tox job to properly gate on the configuration.

Change-Id: Ia738bcb510e146ab38566f0c13ff483ec618a6ed
Depends-On: I16b9affd4402fe5d1637238a2e27f22fdd3986ff
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

grafana/zuul-status.yaml

@@ -0,0 +1,70 @@
+dashboard:
+  title: Zuul Status
+  rows:
+    - title: Row1
+      height: 150px
+      panels:
+        - title: Check Pipeline
+          span: 4
+          sparkline:
+            full: true
+            show: true
+          targets:
+            - target: stats.gauges.zuul.pipeline.check.current_changes
+          type: singlestat
+        - title: Gate Pipeline
+          span: 4
+          sparkline:
+            full: true
+            show: true
+          targets:
+            - target: stats.gauges.zuul.pipeline.gate.current_changes
+          type: singlestat
+        - title: Post Pipeline
+          span: 4
+          sparkline:
+            full: true
+            show: true
+          targets:
+            - target: stats.gauges.zuul.pipeline.post.current_changes
+          type: singlestat
+    - title: Row2
+      height: 250px
+      panels:
+        - title: Test Nodes
+          span: 4
+          stack: true
+          targets:
+            - target: alias(stats.gauges.nodepool.target.building, 'Building')
+            - target: alias(stats.gauges.nodepool.target.ready, 'Available')
+            - target: alias(stats.gauges.nodepool.target.used, 'In Use')
+            - target: alias(stats.gauges.nodepool.target.delete, 'Deleting')
+          type: graph
+        - title: Zuul Jobs Launched (per Hour)
+          span: 4
+          targets:
+            - target: alias(summarize(sumSeries(stats_counts.zuul.pipeline.*.all_jobs), '1h'), 'All Jobs')
+          type: graph
+        - title: Gerrit Events (per Hour)
+          span: 4
+          targets:
+            - target: alias(summarize(stats_counts.gerrit.event.comment-added, '1h'), 'Comment added')
+            - target: alias(summarize(stats_counts.gerrit.event.patchset-created, '1h'), 'Patchset created')
+            - target: alias(summarize(stats_counts.gerrit.event.change-merged, '1h'), 'Change merged')
+          type: graph
+        - title: Zuul Job Queue
+          span: 4
+          targets:
+            - target: alias(stats.gauges.zuul.geard.queue.running, 'Running')
+            - target: alias(stats.gauges.zuul.geard.queue.waiting, 'Waiting')
+            - target: alias(stats.gauges.zuul.geard.queue.total, 'Total Jobs')
+            - target: alias(stats.gauges.zuul.geard.workers, 'Workers')
+          type: graph
+        - title: Logstash Job Queue
+          span: 4
+          targets:
+            - target: alias(stats.gauges.logstash.geard.queue.running, 'Running')
+            - target: alias(stats.gauges.logstash.geard.queue.waiting, 'Waiting')
+            - target: alias(stats.gauges.logstash.geard.queue.total, 'Total Jobs')
+            - target: alias(stats.gauges.logstash.geard.workers, 'Workers')
+          type: graph

test-requirements.txt

@@ -1,2 +1,3 @@
 hacking>=0.10,<0.11
 bashate>=0.2
+grafyaml

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 minversion = 1.6
-envlist = pep8,gerrit,projects,jjb,jenkins-project,zuul
+envlist = pep8,gerrit,grafyaml,projects,jjb,jenkins-project,zuul
 skipsdist = True
 
 [testenv]
@@ -41,6 +41,10 @@ exclude = .tox,.test
 ignore = E125,H
 select = H231
 
+[testenv:grafyaml]
+basepython = python2.7
+commands = grafana-dashboard validate grafana
+
 [testenv:jjb]
 basepython = python2.7
 deps = jenkins-job-builder