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Showing content from https://developers.google.com/compute/docs/reference/rest/v1/instanceTemplates/getIamPolicy below:

Method: instanceTemplates.getIamPolicy | Compute Engine Documentation

Method: instanceTemplates.getIamPolicy

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Gets the access control policy for a resource. May be empty if no such policy or resource exists.

HTTP request

GET https://compute.googleapis.com/compute/v1/projects/{project}/global/instanceTemplates/{resource}/getIamPolicy

The URL uses gRPC Transcoding syntax.

Path parameters Parameters project

string

Project ID for this request.

resource

string

Name or id of the resource for this request.

Query parameters Parameters optionsRequestedPolicyVersion

integer

Requested IAM Policy version.

Request body

The request body must be empty.

Response body

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, or principals, to a single role. Principals 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.

For some types of Google Cloud resources, a binding can also 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. To learn which resources support conditions in their IAM policies, see the IAM documentation.

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.

If successful, the response body contains data with the following structure:

JSON representation 
{
  "version": integer,
  "bindings": [
    {
      "role": string,
      "members": [
        string
      ],
      "condition": {
        "expression": string,
        "title": string,
        "description": string,
        "location": string
      }
    }
  ],
  "auditConfigs": [
    {
      "service": string,
      "auditLogConfigs": [
        {
          "logType": enum,
          "exemptedMembers": [
            string
          ]
        }
      ]
    }
  ],
  "etag": string
}
Fields version

integer

Specifies the format of the policy.

Valid values are 0, 1, and 3. Requests that specify an invalid value are rejected.

Any operation that affects conditional role bindings must specify version 3. This requirement applies to the following operations:

Important: If you use IAM Conditions, you must include the etag field whenever you call setIamPolicy. If you omit this field, then IAM allows you to overwrite a version 3 policy with a version 1 policy, and all of the conditions in the version 3 policy are lost.

If a policy does not include any conditions, operations on that policy may specify any valid version or leave the field unset.

To learn which resources support conditions in their IAM policies, see the IAM documentation.

bindings[]

object

Associates a list of members, or principals, with a role. Optionally, may specify a condition that determines how and when the bindings are applied. Each of the bindings must contain at least one principal.

The bindings in a Policy can refer to up to 1,500 principals; up to 250 of these principals can be Google groups. Each occurrence of a principal counts towards these limits. For example, if the bindings grant 50 different roles to user:alice@example.com, and not to any other principal, then you can add another 1,450 principals to the bindings in the Policy.

bindings[].role

string

Role that is assigned to the list of members, or principals. For example, roles/viewer, roles/editor, or roles/owner.

For an overview of the IAM roles and permissions, see the IAM documentation. For a list of the available pre-defined roles, see here.

bindings[].members[]

string

Specifies the principals requesting access for a Google Cloud resource. members can have the following values:

bindings[].condition

object

The condition that is associated with this binding.

If the condition evaluates to true, then this binding applies to the current request.

If the condition evaluates to false, then this binding does not apply to the current request. However, a different role binding might grant the same role to one or more of the principals in this binding.

To learn which resources support conditions in their IAM policies, see the IAM documentation.

bindings[].condition.expression

string

Textual representation of an expression in Common Expression Language syntax.

bindings[].condition.title

string

Optional. Title for the expression, i.e. a short string describing its purpose. This can be used e.g. in UIs which allow to enter the expression.

bindings[].condition.description

string

Optional. Description of the expression. This is a longer text which describes the expression, e.g. when hovered over it in a UI.

bindings[].condition.location

string

Optional. String indicating the location of the expression for error reporting, e.g. a file name and a position in the file.

auditConfigs[]

object

Specifies cloud audit logging configuration for this policy.

auditConfigs[].service

string

Specifies a service that will be enabled for audit logging. For example, storage.googleapis.com, cloudsql.googleapis.com. allServices is a special value that covers all services.

auditConfigs[].auditLogConfigs[]

object

The configuration for logging of each type of permission.

auditConfigs[].auditLogConfigs[].logType

enum

The log type that this config enables.

auditConfigs[].auditLogConfigs[].exemptedMembers[]

string

Specifies the identities that do not cause logging for this type of permission. Follows the same format of Binding.members.

etag

string (bytes format)

etag is used for optimistic concurrency control as a way to help prevent simultaneous updates of a policy from overwriting each other. It is strongly suggested that systems make use of the etag in the read-modify-write cycle to perform policy updates in order to avoid race conditions: An etag is returned in the response to getIamPolicy, and systems are expected to put that etag in the request to setIamPolicy to ensure that their change will be applied to the same version of the policy.

Important: If you use IAM Conditions, you must include the etag field whenever you call setIamPolicy. If you omit this field, then IAM allows you to overwrite a version 3 policy with a version 1 policy, and all of the conditions in the version 3 policy are lost.

A base64-encoded string.

Requires one of the following OAuth scopes:

For more information, see the Authentication Overview.

IAM Permissions

In addition to any permissions specified on the fields above, authorization requires one or more of the following IAM permissions:

To find predefined roles that contain those permissions, see Compute Engine IAM Roles.

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-07-28 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-07-28 UTC."],[[["This page details how to retrieve the access control policy for a resource using a `GET` HTTP request to a specific URL, which may return an empty policy if none exists."],["The request requires specific path parameters such as `project` and `resource`, and allows for an optional query parameter, `optionsRequestedPolicyVersion`, to define the IAM Policy version."],["The response body is a JSON or YAML representation of an IAM policy, featuring `bindings` that connect `members` (principals) to `roles`, and can include `conditions` that gate access based on logical expressions."],["IAM policies support various principal types, including user accounts, service accounts, Google groups, and domains, with detailed formats provided for each in the `members` field."],["To successfully execute the request and receive the access control policy, one of the listed OAuth scopes must be used for authorization, and the user or service must have the `compute.instanceTemplates.getIamPolicy` IAM permission."]]],[]]

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