Switch to kibana3 link generation

This makes use of the kibana3 logstash dashboard's query and from
parameters to link in queries similar to how we linked in kibana2
queries with base64 encoding. This however uses a saner urlencode
instead of base64 so you should be able to read them as a human.

Note we shouldn't land this until we have switched logstash.o.o over to
kibana3.

Change-Id: Idc1d637db7e1142a24adab2d21bc747d3002dd56
Depends-On: I176148c3bdaf603a1703d215ac2086101ecabe21

elastic_recheck/cmd/uncategorized_fails.py

@@ -148,7 +148,8 @@ def classifying_rate(fails, data, engine, classifier):
                      'AND error_pr:["-1000.0" TO "-10.0"] '
                      % url['build_uuid'])
             logstash_query = qb.encode_logstash_query(query)
-            logstash_url = 'http://logstash.openstack.org/#%s' % logstash_query
+            logstash_url = 'http://logstash.openstack.org' \
+                '/#/dashboard/file/logstash.json?%s' % logstash_query
             results = classifier.hits_by_query(query, size=1)
             if results:
                 url['crm114'] = logstash_url

elastic_recheck/query_builder.py

@@ -18,8 +18,7 @@ A set of utility methods to build the kinds of queries that are needed
 by elastic recheck to talk with elastic search.
 """
 
-import base64
-import json
+from six.moves.urllib.parse import urlencode
 
 
 def generic(raw_query, facet=None):
@@ -134,9 +133,5 @@ def encode_logstash_query(query, timeframe=864000):
     and an optional timeframe argument.
 
     """
-    urlq = dict(search=query,
-                fields=[],
-                offset=0,
-                timeframe=str(timeframe),
-                graphmode="count")
-    return base64.urlsafe_b64encode(json.dumps(urlq))
+    timeframe = str(timeframe) + 's'
+    return urlencode({'query': query, 'from': timeframe})

web/share/gate.html

@@ -70,7 +70,7 @@
            </div>
            {{/if}}
            <div class="graph"></div>
-           <a class="extlink" href="http://logstash.openstack.org/#{{bug.logstash_query}}">Logstash</a>
+           <a class="extlink" href="http://logstash.openstack.org/#/dashboard/file/logstash.json?{{bug.logstash_query}}">Logstash</a>
            <a class="extlink" href="http://bugs.launchpad.net/bugs/{{bug.number}}">Launchpad</a>
       </div>
     </script>

web/share/index.html

@@ -73,7 +73,7 @@
            </div>
            {{/if}}
            <div class="graph"></div>
-           <a class="extlink" href="http://logstash.openstack.org/#{{bug.logstash_query}}">Logstash</a>
+           <a class="extlink" href="http://logstash.openstack.org/#/dashboard/file/logstash.json?{{bug.logstash_query}}">Logstash</a>
            <a class="extlink" href="http://bugs.launchpad.net/bugs/{{bug.number}}">Launchpad</a>
       </div>
     </script>