vectortile: Run tilekiln prometheus endpoint

cookbooks/vectortile/recipes/default.rb

@@ -99,7 +99,7 @@
 python_package "tilekiln" do
   python_virtualenv tilekiln_directory
   python_version "3"
-  version "0.6.3"
+  version "0.6.5"
 end
 
 template "/srv/vector.openstreetmap.org/html/index.html" do
@@ -189,6 +189,13 @@
   end
 end
 
+postgresql_table "tile_stats" do
+  cluster node[:vectortile][:database][:cluster]
+  database "tiles"
+  schema "tilekiln"
+  owner "tilekiln"
+end
+
 (0..14).each do |zoom|
   postgresql_table "shortbread_v1_z#{zoom}" do
     cluster node[:vectortile][:database][:cluster]
@@ -294,3 +301,22 @@
     "--database-name=spirit"
   ]
 end
+
+systemd_service "tilekiln-prometheus" do
+  description "Tilekiln vector tile server"
+  user "tilekiln"
+  after "postgresql.service"
+  wants "postgresql.service"
+  sandbox :enable_network => true
+  restrict_address_families "AF_UNIX"
+  exec_start "#{tilekiln_directory}/bin/tilekiln prometheus --bind-host #{node[:prometheus][:address]} --storage-dbname tiles"
+end
+
+service "tilekiln-prometheus" do
+  action [:enable, :start]
+end
+
+node.default[:prometheus][:exporters][10013] = {
+  :name => "tilekiln",
+  :address => "#{node[:prometheus][:address]}:10013",
+}

test/integration/vectortile/inspec/prometheus_spec.rb

@@ -0,0 +1,8 @@
+describe service("tilekiln-prometheus") do
+  it { should be_enabled }
+  it { should be_running }
+end
+
+describe port(10013) do
+  it { should be_listening }
+end

test/integration/vectortile/inspec/tilekiln_spec.rb

@@ -21,14 +21,10 @@
   its("status") { should cmp 200 }
 end
 
-describe json(:content => http("https://localhost/shortbread_v1/tilejson.json", :ssl_verify => false)) do
+describe json(:content => http("https://localhost/shortbread_v1/tilejson.json", :ssl_verify => false).body) do
   its(["tiles"]) { should eq(["https://vector.openstreetmap.org/shortbread_v1/{z}/{x}/{y}.mvt"]) }
 end
 
-# There are no tiles so everything should return a 404
-describe http("https://localhost/shortbread_v1/0/0/0.mvt", :ssl_verify => false) do
-  its("status") { should cmp 404 }
-end
 describe http("https://localhost/shortbread_v1/16/0/0.mvt", :ssl_verify => false) do
-  its("status") { should cmp 404 }
+  its("status") { should cmp 410 }
 end