title: Error while deploying Google App Engine(GAE) Flexible via Terraform script
body: <p>I created a terraform script to deploy a Java app engine to GAE flexible as below:</p>
  <pre><code>resource &quot;google_app_engine_flexible_app_version&quot; &quot;test-terraform&quot; {
      version_id = &quot;v1&quot;
      project = &quot;project-id&quot;
      service = &quot;service-terraform&quot;   
      runtime = &quot;java&quot;
  
      liveness_check {
          path = &quot;/&quot;
      }
  
      readiness_check {
          path = &quot;/&quot;
      }
      
      env_variables = {
          port = &quot;8080&quot;
      }
      
      deployment {
          zip {
              source_url = &quot;https://storage.googleapis.com/[BUCKET_NAME]/[ZIP_OBJECT_NAME]&quot;
          }
          
          cloud_build_options {
              app_yaml_path = &quot;[PATH_TO_APP-YAML_FILE]&quot;
          }
      }
  
      # resoucres config
      resources {
          cpu = 1
          memory_gb = 2
          disk_gb = 10        
      }
  
      # scale config      
  
      delete_service_on_destroy = true
  }
  </code></pre>
  <p>I tried to change the value of PATH_TO_APP-YAML_FILE to</p>
  <ol>
  <li>location of app.yaml on Storage</li>
  <li>localtion of app.yaml on ZIP source code as &quot;./src/main/appengine/app.yaml&quot;
  but not success deploy, error detail on Cloud Build show as below:</li>
  </ol>
  <pre><code>Step #1: WARN  - A yaml configuration file was expected, but none was found at the provided path: app.yaml. Proceeding with default configuration values. 
  Step #1: Exception in thread &quot;main&quot; com.google.cloud.runtimes.builder.exception.ArtifactNotFoundException: No deployable artifacts were found. Unable to proceed. 
  Step #1:    at com.google.cloud.runtimes.builder.buildsteps.PrebuiltRuntimeImageBuildStep.getArtifact(PrebuiltRuntimeImageBuildStep.java:77) 
  Step #1:    at com.google.cloud.runtimes.builder.buildsteps.RuntimeImageBuildStep.run(RuntimeImageBuildStep.java:50) 
  Step #1:    at com.google.cloud.runtimes.builder.BuildPipelineConfigurator.generateDockerResources(BuildPipelineConfigurator.java:104) 
  Step #1:    at com.google.cloud.runtimes.builder.Application.main(Application.java:147) Finished Step #1 ERROR Blockquote
  </code></pre>
  <p>Could you please help me to point out exactly the value <strong>PATH_TO_APP-YAML_FILE</strong>?
  Thanks!</p>