Add tenant column to the buildset reporter table

This change adds a tenant column to the zuul_buildset sql table to be able
to filter results based on tenant.

Change-Id: I4eec8e9a32883c54da953b7279e0f8a8c86b943b

zuul/driver/sql/alembic_reporter/versions/f86c9871ee67_add_tenant_column.py

@@ -0,0 +1,38 @@
+# Copyright 2017 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""Add tenant column
+
+Revision ID: f86c9871ee67
+Revises: 20126015a87d
+Create Date: 2017-07-17 05:47:48.189767
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = 'f86c9871ee67'
+down_revision = '20126015a87d'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+
+
+def upgrade():
+    op.add_column('zuul_buildset', sa.Column('tenant', sa.String(255)))
+
+
+def downgrade():
+    op.drop_column('zuul_buildset', 'tenant')

zuul/driver/sql/sqlconnection.py

@@ -85,6 +85,7 @@ class SQLConnection(BaseConnection):
             sa.Column('ref', sa.String(255)),
             sa.Column('score', sa.Integer, nullable=True),
             sa.Column('message', sa.TEXT()),
+            sa.Column('tenant', sa.String(255)),
         )
 
         zuul_build_table = sa.Table(

zuul/driver/sql/sqlreporter.py

@@ -52,6 +52,7 @@ class SQLReporter(BaseReporter):
                 score=self.result_score,
                 message=self._formatItemReport(
                     item, with_jobs=False),
+                tenant=item.pipeline.layout.tenant.name,
             )
             buildset_ins_result = conn.execute(buildset_ins)
             build_inserts = []