Introduction

To support multiple VMs, please find out the full details: https://medium.com/@cyanzhoufeng/gcp-put-your-staging-env-into-sleep-mode-during-non-working-hours-bc557673028d This code is used to achieve the functions described in this Medium article

The code is to enhance the existing function Scheduling Compute Instances with Cloud Scheduler

Below is the original README of the sample code, it also includes the instruction

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Google Cloud Functions - Scheduling GCE Instances sample

Deploy and run the sample

See the Scheduling Instances with Cloud Scheduler tutorial.

Run the tests

1. Read and follow the prerequisites.

2. Install dependencies:

    npm install
   

3. Run the tests:

    npm test
   

Additional resources

• GCE NodeJS Client Library documentation
• Background Cloud Functions documentation

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Usage

Checkout the code

git clone git@github.com:CyanZero/gcp-vms-sleep.git

No need to install as the code will be uploaded to GCP Cloud Function, so run the below Gloud API (Need to install GCloud util first)

gcloud functions deploy startInstancePubSubMul \
    --trigger-topic start-instance-event \
    --runtime nodejs6 \
    --region asia-northeast1
gcloud functions deploy stopInstancePubSubMul \
    --trigger-topic start-instance-event \
    --runtime nodejs6 \
    --region asia-northeast1

Verify the new created Cloud function

# The zone value depends on your actual settings
data=$(echo '{ "zone": "YOUR_ZONE", "instances": ["instance-a", "instance-b"] }' | base64)
# Notice the limited support for the cloud function, and the region used here is asia-northeast1
gcloud functions call stopInstancePubSub \
 - region asia-northeast1 \
 - project YOUR_PROJECT_NAME \
 - data '{"data":$data}'
# Check if the instances are in terminated statusgcloud compute instances describe instance-a \
    --zone YOUR_ZONE \
    | grep status
status: TERMINATED

Addition Shell scripts if you want to automate remove/add VMs process

bash mul_sleep_scheduler.sh dev "YOUR_ZONE" "instance-a instance-b"