Use the server's zone to determine a node selector when running in pods

This will allow workers to be target to specific nodes.

app/models/miq_worker/container_common.rb

@@ -8,6 +8,10 @@ def configure_worker_deployment(definition, replicas = 0)
       definition[:spec][:replicas] = replicas
       definition[:spec][:template][:spec][:terminationGracePeriodSeconds] = self.class.worker_settings[:stopping_timeout].seconds
 
+      if MiqServer.my_zone != "default"
+        definition[:spec][:template][:spec][:nodeSelector] = zone_selector
+      end
+
       container = definition[:spec][:template][:spec][:containers].first
       container[:image] = "#{container_image_namespace}/#{container_image_name}:#{container_image_tag}"
       container[:env] << {:name => "WORKER_CLASS_NAME", :value => self.class.name}
@@ -19,6 +23,10 @@ def scale_deployment
       delete_container_objects if self.class.workers.zero?
     end
 
+    def zone_selector
+      {"#{Vmdb::Appliance.PRODUCT_NAME.downcase}/zone" => MiqServer.my_zone}
+    end
+
     def container_image_namespace
       ENV["CONTAINER_IMAGE_NAMESPACE"]
     end

spec/models/miq_worker/container_common_spec.rb

@@ -6,6 +6,46 @@ def deployment_name_for(name)
     "#{compressed_server_id}-#{name}"
   end
 
+  describe "#configure_worker_deplyoment" do
+    let(:test_deployment) do
+      {
+        :metadata => {
+          :name      => "test",
+          :labels    => {:app => "manageiq"},
+          :namespace => "manageiq",
+        },
+        :spec     => {
+          :selector => {:matchLabels => {:name => "test"}},
+          :template => {
+            :metadata => {:name => "test", :labels => {:name => "test", :app => "manageiq"}},
+            :spec     => {
+              :serviceAccountName => "miq-anyuid",
+              :containers         => [{
+                :name          => "test",
+                :env           => []
+              }]
+            }
+          }
+        }
+      }
+    end
+
+    it "adds a node selector based on the zone name" do
+      worker = FactoryBot.create(:miq_generic_worker)
+      worker.configure_worker_deployment(test_deployment)
+
+      expect(test_deployment.dig(:spec, :template, :spec, :nodeSelector)).to eq("manageiq/zone" => MiqServer.my_zone)
+    end
+
+    it "doesn't add a node selector for the default zone" do
+      MiqServer.my_server.zone.update(:name => "default")
+      worker = FactoryBot.create(:miq_generic_worker)
+      worker.configure_worker_deployment(test_deployment)
+
+      expect(test_deployment.dig(:spec, :template, :spec).keys).not_to include(:nodeSelector)
+    end
+  end
+
   describe "#worker_deployment_name" do
     let(:test_cases) do
       [