gcloud alpha app update

NAME
gcloud alpha app update - updates an App Engine application
SYNOPSIS
gcloud alpha app update [--service-account=SERVICE_ACCOUNT] [--[no-]split-health-checks] [--ssl-policy=SSL_POLICY] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
(ALPHA) This command is used to update settings on an app engine application.
EXAMPLES
To enable split health checks on an application: 
gcloud alpha app update --split-health-checks

To update the app-level service account on an application: 

gcloud alpha app update --service-account=SERVICE_ACCOUNT

To update the app-level minimum SSL policy of the application: 

gcloud alpha app update --ssl-policy=TLS_VERSION_1_2
FLAGS
--service-account=SERVICE_ACCOUNT
The app-level default service account to update the app with.
--[no-]split-health-checks
Enables/disables split health checks by default on new deployments. Use --split-health-checks to enable and --no-split-health-checks to disable.
--ssl-policy=SSL_POLICY
The app-level SSL policy to update the app with. SSL_POLICY must be one of: TLS_VERSION_1_0, TLS_VERSION_1_2.
GCLOUD WIDE FLAGS
These flags are available to all commands: --access-token-file, --account, --billing-project, --configuration, --flags-file, --flatten, --format, --help, --impersonate-service-account, --log-http, --project, --quiet, --trace-token, --user-output-enabled, --verbosity.

Run $ gcloud help for details.

NOTES
This command is currently in alpha and might change without notice. If this command fails with API permission errors despite specifying the correct project, you might be trying to access an API with an invitation-only early access allowlist. These variants are also available: 
gcloud app update
 
gcloud beta app update