将 Google App Engine 应用程序部署为单个 JAR 时如何指定实例类？

Question

I have an application which I deploy as a single JAR file to the Google App Engine Standard Java 11 environment (the application is Open Source, available at https://github.com/OndrejSpanel/Mixtio ). I would like the application to use instance class F2 instead of the default F1. When I have tried to provide my own app.yaml by specifying at the command line, I got error "All .yaml files must have unique service ids.":

gcloud app deploy --project mixtio backend/target/scala-2.12/mixtio.jar backend/web/WEB-INF/cron.yaml backend/web/WEB-INF/app.yaml

ERROR: (gcloud.app.deploy) [D:\\Users\\xxx\\AppData\\Local\\Temp\\tmpmt01m6jp\\app.yaml] and [X:\\OpenSource\\Mixtio\\backend\\web\\WEB-INF\\app.yaml] are both defining the service id [default]. All .yaml files must have unique service ids.

This is how the default configuration generated by the Google Cloud when using single jar deployment looks like, as seen in the App Engine console:

runtime: java11
env: standard
instance_class: F1
handlers:
  - url: .*
    script: auto
automatic_scaling:
  min_idle_instances: automatic
  max_idle_instances: automatic
  min_pending_latency: automatic
  max_pending_latency: automatic
network: {}

How can I configure parameters like instance_class for an application deployed as a single jar?

Answer 1

Try passing argument --appyaml =backend/web/WEB-INF/app.yaml , in order to be more explicit. Also see: the default service . When using the predefined *.yaml file-names, one probably doesn't have to specify them, as it is already known what they are meant for.

If you have multiple applications to deploy, just run eg.:

gcloud app deploy service-name-app.yaml
gcloud app deploy app.standard.yaml

The instance class to deploy is being defined per app.yaml , by parameter instance_class .

Defining Runtime Settings also explain it.