---
title: "Start Deployment"
method: PUT
path: "/gcp/gce/group/{groupId}/roll"
tags: ["Elastigroup GCP"]
---

# Start Deployment

`PUT /gcp/gce/group/{groupId}/roll`

Deploy the Elastigroup: Triggers a Blue/Green deployment that replaces the existing instances in the Elastigroup

## Parameters

- `#/paths/~1azure~1costs/get/parameters/0` — unresolved $ref
- `#/paths/~1gcp~1gce~1group~1%7BgroupId%7D/get/parameters/1` — unresolved $ref

## Request body

- object
  - `batchSizePercentage` integer, required — (in percentage) the batch size of the deployment, i.e.: how many instances to replace in each batch
  - `gracePeriod` integer, required — (in seconds) the time until an instance becomes healthy in the load balancer

## Other responses

- `400` — Bad Request

---

[API](https://skmtc.net/spot/apis/spot-by-flexera-api.md) · [All operations](https://skmtc.net/spot/apis/spot-by-flexera-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/spot/spot-by-flexera-api/revisions/72813baf8d47/schema)