gcp-instance-scheduler

Tools that shutdown GCP Instance on your schedule.

Abstract

• Shutdown target
  • GCE, GKE, SQL
  • Target instance must has Label（state-scheduler:true）
• Architecture
  • Cloud Scheduler --> Pub/Sub --> CloudFunction
    • https://cloud.google.com/scheduler/docs/start-and-stop-compute-engine-instances-on-a-schedule
• 🚧Limitation🚧
  • Stop only. This tool does not support restart yet
    • If you need to recover, you should restart instances manually

Config

• nothing special
  • GCP_PROJECT is automation set by CloudFunction

Getting Started

• install gcloud

# Deploy Cloud Function
gcloud functions deploy ReceiveEvent --project <project-id> \
  --runtime go111 \
  --trigger-topic instance-scheduler-event

# Create Cloud Scheduler Job
gcloud beta scheduler jobs create pubsub shutdown-workday \
  --project <project-id> \
  --schedule '0 22 * * *' \
  --topic instance-scheduler-event \
  --message-body '{"command":"stop"}' \
  --time-zone 'Asia/Tokyo' \
  --description 'automatically stop instances'

Example: create target resources

Set label for target instance

# GCE
gcloud compute instances update <insntance-name> \
  --project <project-id> \
  --update-labels state-scheduler=true

# Instance Group
gcloud compute instance-templates create <tmeplate-name> ... \
  --project <project-id> \
  --labels state-scheduler=true

# Cloud SQL (master must be running)
gcloud beta sql instances patch <insntance-name> \
  --project <project-id> \
  --update-labels state-scheduler=true

# GKE
gcloud container clusters update <cluster-name> \
  --project <project-id> \
  --zone <cluster-master-node-zone> \
  --update-labels state-scheduler=true

Tips: Debug Function

• publish message to pub/sub
  • gcloud pubsub topics publish stop-instance-event --project <project-id> --message "{"command":"stop"}"
• confirm Functions log
  • gcloud functions logs read --project <project-id> --limit 50
• manual launch for job of scheduler
  • gcloud beta scheduler jobs run shutdown-workday-instance

License

This project is licensed under the Apache License 2.0 License - see the LICENSE file for details