NAME
    gcloud app versions migrate - migrate traffic from one version to another
        for a set of services

SYNOPSIS
    gcloud app versions migrate VERSION [--service=SERVICE, -s SERVICE]
        [GCLOUD_WIDE_FLAG ...]

DESCRIPTION
    Migrate traffic from one version to another for a set of services.

EXAMPLES
    This only works for automatically scaled Standard versions. To migrate from
    one version to another for all services where there is a version v2 and
    shut down the previous version, run:

        $ gcloud app versions migrate v2

    To migrate from one version to another for a specific service, run:

        $ gcloud app versions migrate v2 --service="s1"

POSITIONAL ARGUMENTS
     VERSION
        The version to migrate to.

FLAGS
     --service=SERVICE, -s SERVICE
        If specified, only migrate versions from the given service.

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 variant is also available:

        $ gcloud beta app versions migrate