Prerequisites

GCP account

Open Console.

Open the cloud shell

To list of all supported types

$ gcloud deployment-manager types list

Create a file with extension .yaml. This will be your configuration file.

$ nano vm.yaml

Paste the code below into that file.

# Copyright 2016 Google Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
resources:
- name: vm-created-by-deployment-manager
  type: compute.v1.instance
  properties:
    zone: us-central1-a
    machineType: zones/us-central1-a/machineTypes/n1-standard-1
    disks:
    - deviceName: boot
      type: PERSISTENT
      boot: true
      autoDelete: true
      initializeParams:
        sourceImage: projects/debian-cloud/global/images/family/debian-9
    networkInterfaces:
    - network: global/networks/default

To close, Press ctrl+x  then y  to confirm. Then enter. The file will be saved.

Preview a configuration 

$     gcloud deployment-manager deployments create example-config --config configuration-file.yaml --preview

Canceling a preview

$     gcloud deployment-manager deployments cancel-preview example-config

Deleting a preview

$     gcloud deployment-manager deployments delete example-config

Deploying a preview

$     gcloud deployment-manager deployments update example-config

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