configure.md

Configure

Let's see how to configure a service. We can use the service from the previous step.

Environment variables

The service in helloworld folder looks for an environment variable TARGET to print out but it's not set. Let's set that variable in Cloud Run:

gcloud run services update $SERVICE_NAME \
  --platform managed \
  --update-env-vars TARGET=v1

Now, the service reads the environment variable:

curl $SERVICE_URL

Hello v1!

CPU

By default, 1 CPU is allocated for each container instance. This cannot be changed for managed Cloud Run but can be changed on Cloud Run on Anthos.

Memory

By default, the service gets 256Mi of memory. Let's set it to maximum 2Gi:

gcloud run services update $SERVICE_NAME \
  --platform managed \
  --memory 2Gi

Concurrency

By default, each container gets 80 requests. Let's half that to 40:

gcloud run services update $SERVICE_NAME \
  --platform managed \
  --concurrency 40

Request timeout

By default, the request timeout is 300 seconds. Let's set it to maximum 900 seconds:

gcloud run services update $SERVICE_NAME \
  --platform managed \
  --timeout 900

Autoscaling

By default, Cloud Run autoscales to 1000 containers. Let's set it to maximum 500:

gcloud run services update $SERVICE_NAME \
  --platform managed \
  --max-instances 500