I'm running a flex environment google app engine service, and I can't understand why it always shows 2 instances running, even when there is no traffic. The flex environment I'm using is a distroless golang service.

I know with flex environments you can't set min instance properties. Now that I am getting traffic, I see the instance count is at 3, which makes me wonder, are two of these instances actually doing anything.

My CPU utilization runs at about 30%. Memory usage is 1.6 GB.

My yaml:

instance_class: F1

runtime: custom
env: flex

includes:
  - .env.yaml

I'm running a flex environment google app engine service, and I can't understand why it always shows 2 instances running, even when there is no traffic. The flex environment I'm using is a distroless golang service.

I know with flex environments you can't set min instance properties. Now that I am getting traffic, I see the instance count is at 3, which makes me wonder, are two of these instances actually doing anything.

My CPU utilization runs at about 30%. Memory usage is 1.6 GB.

My yaml:

instance_class: F1

runtime: custom
env: flex

includes:
  - .env.yaml

• google-cloud-platform
• google-app-engine
• google-app-engine-go

• Do you have 2 services deployed or only 1? Is your service run stuff in background? – guillaume blaquiere Commented Nov 18, 2024 at 20:18
• just the one default service – l2silver Commented Nov 18, 2024 at 23:43

1 Answer 1

You must include a scaling description in your app.yaml file to control the min instance value.

By default, the min instance is set to 2. Set it to one in your scaling config override.