Check if project exists before creating deployment

app/services/create_deployment_service.rb

@@ -2,6 +2,8 @@ require_relative 'base_service'
 
 class CreateDeploymentService < BaseService
   def execute(deployable = nil)
+    return unless executable?
+
     ActiveRecord::Base.transaction do
       @deployable = deployable
       @environment = prepare_environment
@@ -14,6 +16,10 @@ class CreateDeploymentService < BaseService
 
   private
 
+  def executable?
+    project && name.present?
+  end
+
   def deploy
     project.deployments.create(
       environment: @environment,

app/workers/build_success_worker.rb

@@ -4,8 +4,6 @@ class BuildSuccessWorker
 
   def perform(build_id)
     Ci::Build.find_by(id: build_id).try do |build|
-      return unless build.project
-
       create_deployment(build)
     end
   end

spec/services/create_deployment_service_spec.rb

@@ -84,6 +84,17 @@ describe CreateDeploymentService, services: true do
         expect(subject).to be_persisted
       end
     end
+
+    context 'when project was removed' do
+      let(:project) { nil }
+
+      it 'does not create deployment or environment' do
+        expect { subject }.not_to raise_error
+
+        expect(Environment.count).to be_zero
+        expect(Deployment.count).to be_zero
+      end
+    end
   end
 
   describe 'processing of builds' do