An Identity and Access Management (IAM) policy, which specifies access controls for Google Cloud resources.
A Policy
is a collection of bindings
. A binding
binds one or more members
to a single role
. Members can be user accounts, service accounts, Google groups, and domains (such as G Suite). A role
is a named list of permissions; each role
can be an IAM predefined role or a user-created custom role.
Optionally, a binding
can specify a condition
, which is a logical expression that allows access to a resource only if the expression evaluates to true
. A condition can add constraints based on attributes of the request, the resource, or both.
JSON example:
{
"bindings": [
{
"role": "roles/resourcemanager.organizationAdmin",
"members": [
"user:mike@example.com",
"group:admins@example.com",
"domain:google.com",
"serviceAccount:my-project-id@appspot.gserviceaccount.com"
]
},
{
"role": "roles/resourcemanager.organizationViewer",
"members": ["user:eve@example.com"],
"condition": {
"title": "expirable access",
"description": "Does not grant access after Sep 2020",
"expression": "request.time < timestamp('2020-10-01T00:00:00.000Z')",
}
}
],
"etag": "BwWWja0YfJA=",
"version": 3
}
YAML example:
bindings:
- members:
- user:mike@example.com
- group:admins@example.com
- domain:google.com
- serviceAccount:my-project-id@appspot.gserviceaccount.com
role: roles/resourcemanager.organizationAdmin
- members:
- user:eve@example.com
role: roles/resourcemanager.organizationViewer
condition:
title: expirable access
description: Does not grant access after Sep 2020
expression: request.time < timestamp('2020-10-01T00:00:00.000Z')
- etag: BwWWja0YfJA=
- version: 3
For a description of IAM and its features, see the IAM documentation.
JSON representation | |
---|---|
{
"version": integer,
"bindings": [
{
object ( |
Fields | |
---|---|
version |
Specifies the format of the policy. Valid values are Any operation that affects conditional role bindings must specify version
Important: If you use IAM Conditions, you must include the If a policy does not include any conditions, operations on that policy may specify any valid version or leave the field unset. |
bindings[] |
Associates a list of |
etag |
Important: If you use IAM Conditions, you must include the A base64-encoded string. |