gcloud compute vpn-tunnels describe

NAME
gcloud compute vpn-tunnels describe - describe a Compute Engine VPN tunnel
SYNOPSIS
gcloud compute vpn-tunnels describe NAME [--region=REGION] [GCLOUD_WIDE_FLAG …]
DESCRIPTION
gcloud compute vpn-tunnels describe displays all data associated with a Compute Engine VPN tunnel in a project.
POSITIONAL ARGUMENTS
NAME
Name of the VPN Tunnel to describe.
FLAGS
--region=REGION
Region of the VPN Tunnel to describe. If not specified, you might be prompted to select a region (interactive mode only).

To avoid prompting when this flag is omitted, you can set the compute/region property: 

gcloud config set compute/region REGION

A list of regions can be fetched by running: 

gcloud compute regions list

To unset the property, run: 

gcloud config unset compute/region

Alternatively, the region can be stored in the environment variable CLOUDSDK_COMPUTE_REGION.

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
These variants are also available: 
gcloud alpha compute vpn-tunnels describe
 
gcloud beta compute vpn-tunnels describe