1 files changed, 24 insertions, 0 deletions
diff --git a/db/migrate/20200319124127_create_metrics_dashboard_annotations.rb b/db/migrate/20200319124127_create_metrics_dashboard_annotations.rb
new file mode 100644
index 00000000000..4c57e38518a
--- /dev/null
+++ b/db/migrate/20200319124127_create_metrics_dashboard_annotations.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+# See https://docs.gitlab.com/ee/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class CreateMetricsDashboardAnnotations < ActiveRecord::Migration[6.0]
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  def change
+    create_table :metrics_dashboard_annotations do |t|
+      t.datetime_with_timezone :starting_at, null: false
+      t.datetime_with_timezone :ending_at
+      t.references :environment, index: false, foreign_key: { on_delete: :cascade }, null: true
+      t.references :cluster, index: false, foreign_key: { on_delete: :cascade }, null: true
+      t.string :dashboard_path, null: false, limit: 255
+      t.string :panel_xid, limit: 255
+      t.text :description, null: false, limit: 255
+
+      t.index %i(environment_id dashboard_path starting_at ending_at), where: 'environment_id IS NOT NULL', name: "index_metrics_dashboard_annotations_on_environment_id_and_3_col"
+      t.index %i(cluster_id dashboard_path starting_at ending_at), where: 'cluster_id IS NOT NULL', name: "index_metrics_dashboard_annotations_on_cluster_id_and_3_columns"
+    end
+  end
+end