gcp.storage.bucket.set-iam-policy

Merge or replace IAM bindings on a GCS bucket.

Overview

Property	Value
Workflow type	Linear
Library	Base-gcp
Version	1.0

Input Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	Yes	—	GCP CloudConnection UUID.
project_id	string	No	—	GCP project override.
bucket	string	Yes	—	GCS bucket name.
bindings	list	Yes	—	IAM role/member bindings to apply.
mode	string	No	—	merge or replace; default merge.

Output Schema

Field	Type	Required	Default	Description
connection_uuid	uuid	No	—	Echoed connection UUID.
project_id	string	No	—	Effective project id.
bucket	string	No	—	GCS bucket name.
bindings	list	No	—	IAM role/member bindings to apply.
mode	string	No	—	merge or replace; default merge.
bindings_applied	list	No	—	Bindings applied.
changed	boolean	No	—	True when policy changed.
etag	string	No	—	Resulting IAM etag.
failure_reason	string	No	—	Human-readable failure reason.
failed_step	string	No	—	Failed logical step.
failed_layer	json	No	—	Engine failed layer envelope.
failed_at_state	string	No	—	State where failure occurred.
error	string	No	—	Error message.
error_type	string	No	—	Error class.

States

State	Initial	Terminal	Success	Auto-advance	Description
pending	Yes	No	—	preflight	—
applying	No	No	—	complete	—
preflighting	No	No	—	execute	—
completed	No	Yes	Yes	—	—
failed	No	Yes	No	—	—

State Diagram

Transitions

From	Action	To	Description
pending	preflight	preflighting	—
preflighting	execute	applying	—
applying	complete	completed	—
* (any state)	fail	failed	—

API Usage

POST /api/workflows/start
Content-Type: application/json

{
  "workflow_type": "gcp.storage.bucket.set-iam-policy",
  "initial_data": {
    "connection_uuid": "value",
    "bucket": "value",
    "bindings": "value"
  }
}