Manage GCP Cloud Tasks Queue IAM Policies

The gcp:cloudtasks/queueIamPolicy:QueueIamPolicy resource, part of the Pulumi GCP provider, manages IAM access control for Cloud Tasks queues. Three related resources provide different levels of control: QueueIamPolicy replaces the entire policy, QueueIamBinding manages all members for a specific role, and QueueIamMember adds individual members. This guide focuses on three capabilities: authoritative policy replacement, role-level member binding, and individual member grants.

These resources reference existing Cloud Tasks queues by project, location, and name. QueueIamPolicy cannot be used alongside QueueIamBinding or QueueIamMember, as they will conflict over policy ownership. QueueIamBinding and QueueIamMember can coexist if they manage different roles. The examples are intentionally small. Combine them with your own queue infrastructure and organizational access patterns.

Replace the entire IAM policy for a queue

When you need complete control over queue access, you can set the entire IAM policy at once, replacing any existing permissions.

import * as pulumi from "@pulumi/pulumi";
import * as gcp from "@pulumi/gcp";

const admin = gcp.organizations.getIAMPolicy({
    bindings: [{
        role: "roles/viewer",
        members: ["user:jane@example.com"],
    }],
});
const policy = new gcp.cloudtasks.QueueIamPolicy("policy", {
    project: _default.project,
    location: _default.location,
    name: _default.name,
    policyData: admin.then(admin => admin.policyData),
});

import pulumi
import pulumi_gcp as gcp

admin = gcp.organizations.get_iam_policy(bindings=[{
    "role": "roles/viewer",
    "members": ["user:jane@example.com"],
}])
policy = gcp.cloudtasks.QueueIamPolicy("policy",
    project=default["project"],
    location=default["location"],
    name=default["name"],
    policy_data=admin.policy_data)

package main

import (
	"github.com/pulumi/pulumi-gcp/sdk/v9/go/gcp/cloudtasks"
	"github.com/pulumi/pulumi-gcp/sdk/v9/go/gcp/organizations"
	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
)

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		admin, err := organizations.LookupIAMPolicy(ctx, &organizations.LookupIAMPolicyArgs{
			Bindings: []organizations.GetIAMPolicyBinding{
				{
					Role: "roles/viewer",
					Members: []string{
						"user:jane@example.com",
					},
				},
			},
		}, nil)
		if err != nil {
			return err
		}
		_, err = cloudtasks.NewQueueIamPolicy(ctx, "policy", &cloudtasks.QueueIamPolicyArgs{
			Project:    pulumi.Any(_default.Project),
			Location:   pulumi.Any(_default.Location),
			Name:       pulumi.Any(_default.Name),
			PolicyData: pulumi.String(admin.PolicyData),
		})
		if err != nil {
			return err
		}
		return nil
	})
}

using System.Collections.Generic;
using System.Linq;
using Pulumi;
using Gcp = Pulumi.Gcp;

return await Deployment.RunAsync(() => 
{
    var admin = Gcp.Organizations.GetIAMPolicy.Invoke(new()
    {
        Bindings = new[]
        {
            new Gcp.Organizations.Inputs.GetIAMPolicyBindingInputArgs
            {
                Role = "roles/viewer",
                Members = new[]
                {
                    "user:jane@example.com",
                },
            },
        },
    });

    var policy = new Gcp.CloudTasks.QueueIamPolicy("policy", new()
    {
        Project = @default.Project,
        Location = @default.Location,
        Name = @default.Name,
        PolicyData = admin.Apply(getIAMPolicyResult => getIAMPolicyResult.PolicyData),
    });

});

package generated_program;

import com.pulumi.Context;
import com.pulumi.Pulumi;
import com.pulumi.core.Output;
import com.pulumi.gcp.organizations.OrganizationsFunctions;
import com.pulumi.gcp.organizations.inputs.GetIAMPolicyArgs;
import com.pulumi.gcp.cloudtasks.QueueIamPolicy;
import com.pulumi.gcp.cloudtasks.QueueIamPolicyArgs;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;

public class App {
    public static void main(String[] args) {
        Pulumi.run(App::stack);
    }

    public static void stack(Context ctx) {
        final var admin = OrganizationsFunctions.getIAMPolicy(GetIAMPolicyArgs.builder()
            .bindings(GetIAMPolicyBindingArgs.builder()
                .role("roles/viewer")
                .members("user:jane@example.com")
                .build())
            .build());

        var policy = new QueueIamPolicy("policy", QueueIamPolicyArgs.builder()
            .project(default_.project())
            .location(default_.location())
            .name(default_.name())
            .policyData(admin.policyData())
            .build());

    }
}

resources:
  policy:
    type: gcp:cloudtasks:QueueIamPolicy
    properties:
      project: ${default.project}
      location: ${default.location}
      name: ${default.name}
      policyData: ${admin.policyData}
variables:
  admin:
    fn::invoke:
      function: gcp:organizations:getIAMPolicy
      arguments:
        bindings:
          - role: roles/viewer
            members:
              - user:jane@example.com

The QueueIamPolicy resource takes a policyData string generated by the getIAMPolicy data source. The bindings array defines roles and their members. This approach is authoritative: any permissions not declared in the policy are removed when Pulumi applies the configuration.

Grant a role to multiple members at once

When multiple users or service accounts need the same access level, you can bind them all to a single role in one resource.

import * as pulumi from "@pulumi/pulumi";
import * as gcp from "@pulumi/gcp";

const binding = new gcp.cloudtasks.QueueIamBinding("binding", {
    project: _default.project,
    location: _default.location,
    name: _default.name,
    role: "roles/viewer",
    members: ["user:jane@example.com"],
});

import pulumi
import pulumi_gcp as gcp

binding = gcp.cloudtasks.QueueIamBinding("binding",
    project=default["project"],
    location=default["location"],
    name=default["name"],
    role="roles/viewer",
    members=["user:jane@example.com"])

package main

import (
	"github.com/pulumi/pulumi-gcp/sdk/v9/go/gcp/cloudtasks"
	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
)

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := cloudtasks.NewQueueIamBinding(ctx, "binding", &cloudtasks.QueueIamBindingArgs{
			Project:  pulumi.Any(_default.Project),
			Location: pulumi.Any(_default.Location),
			Name:     pulumi.Any(_default.Name),
			Role:     pulumi.String("roles/viewer"),
			Members: pulumi.StringArray{
				pulumi.String("user:jane@example.com"),
			},
		})
		if err != nil {
			return err
		}
		return nil
	})
}

using System.Collections.Generic;
using System.Linq;
using Pulumi;
using Gcp = Pulumi.Gcp;

return await Deployment.RunAsync(() => 
{
    var binding = new Gcp.CloudTasks.QueueIamBinding("binding", new()
    {
        Project = @default.Project,
        Location = @default.Location,
        Name = @default.Name,
        Role = "roles/viewer",
        Members = new[]
        {
            "user:jane@example.com",
        },
    });

});

package generated_program;

import com.pulumi.Context;
import com.pulumi.Pulumi;
import com.pulumi.core.Output;
import com.pulumi.gcp.cloudtasks.QueueIamBinding;
import com.pulumi.gcp.cloudtasks.QueueIamBindingArgs;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;

public class App {
    public static void main(String[] args) {
        Pulumi.run(App::stack);
    }

    public static void stack(Context ctx) {
        var binding = new QueueIamBinding("binding", QueueIamBindingArgs.builder()
            .project(default_.project())
            .location(default_.location())
            .name(default_.name())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

resources:
  binding:
    type: gcp:cloudtasks:QueueIamBinding
    properties:
      project: ${default.project}
      location: ${default.location}
      name: ${default.name}
      role: roles/viewer
      members:
        - user:jane@example.com

The QueueIamBinding resource is authoritative for the specified role. The members array lists all identities that should have this role. Other roles on the queue remain unchanged, but any members not listed here lose this specific role.

Add a single member to a role incrementally

When you need to grant access to one identity without affecting existing permissions, you can add them individually.

import * as pulumi from "@pulumi/pulumi";
import * as gcp from "@pulumi/gcp";

const member = new gcp.cloudtasks.QueueIamMember("member", {
    project: _default.project,
    location: _default.location,
    name: _default.name,
    role: "roles/viewer",
    member: "user:jane@example.com",
});

import pulumi
import pulumi_gcp as gcp

member = gcp.cloudtasks.QueueIamMember("member",
    project=default["project"],
    location=default["location"],
    name=default["name"],
    role="roles/viewer",
    member="user:jane@example.com")

package main

import (
	"github.com/pulumi/pulumi-gcp/sdk/v9/go/gcp/cloudtasks"
	"github.com/pulumi/pulumi/sdk/v3/go/pulumi"
)

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := cloudtasks.NewQueueIamMember(ctx, "member", &cloudtasks.QueueIamMemberArgs{
			Project:  pulumi.Any(_default.Project),
			Location: pulumi.Any(_default.Location),
			Name:     pulumi.Any(_default.Name),
			Role:     pulumi.String("roles/viewer"),
			Member:   pulumi.String("user:jane@example.com"),
		})
		if err != nil {
			return err
		}
		return nil
	})
}

using System.Collections.Generic;
using System.Linq;
using Pulumi;
using Gcp = Pulumi.Gcp;

return await Deployment.RunAsync(() => 
{
    var member = new Gcp.CloudTasks.QueueIamMember("member", new()
    {
        Project = @default.Project,
        Location = @default.Location,
        Name = @default.Name,
        Role = "roles/viewer",
        Member = "user:jane@example.com",
    });

});

package generated_program;

import com.pulumi.Context;
import com.pulumi.Pulumi;
import com.pulumi.core.Output;
import com.pulumi.gcp.cloudtasks.QueueIamMember;
import com.pulumi.gcp.cloudtasks.QueueIamMemberArgs;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;

public class App {
    public static void main(String[] args) {
        Pulumi.run(App::stack);
    }

    public static void stack(Context ctx) {
        var member = new QueueIamMember("member", QueueIamMemberArgs.builder()
            .project(default_.project())
            .location(default_.location())
            .name(default_.name())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:cloudtasks:QueueIamMember
    properties:
      project: ${default.project}
      location: ${default.location}
      name: ${default.name}
      role: roles/viewer
      member: user:jane@example.com

The QueueIamMember resource is non-authoritative. It adds the specified member to the role without removing other members. This approach works well when multiple teams manage access independently, as each can add their own members without coordinating.

Beyond these examples

These snippets focus on specific IAM management approaches: authoritative vs non-authoritative IAM management, and policy-level, role-level, and member-level access control. They’re intentionally minimal rather than full access control systems.

The examples reference pre-existing infrastructure such as Cloud Tasks queues (by project, location, and name). They focus on configuring IAM bindings rather than provisioning the queues themselves.

To keep things focused, common IAM patterns are omitted, including:

Conditional IAM bindings (condition blocks)
Custom IAM roles
Service account impersonation
IAM policy retrieval (data source usage)

These omissions are intentional: the goal is to illustrate how each IAM resource type is wired, not provide drop-in access control modules. See the Cloud Tasks Queue IAM Policy resource reference for all available configuration options.

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Frequently Asked Questions

Resource Selection & Conflicts

Which IAM resource should I use for my Cloud Tasks queue?

Choose based on your needs: QueueIamPolicy is authoritative and replaces the entire IAM policy. QueueIamBinding is authoritative for a specific role but preserves other roles in the policy. QueueIamMember is non-authoritative and adds a single member to a role while preserving other members.

Why am I getting conflicts between my queue IAM resources?

QueueIamPolicy cannot be used with QueueIamBinding or QueueIamMember because they’ll conflict over the policy. Use QueueIamPolicy alone, or use QueueIamBinding and QueueIamMember without QueueIamPolicy.

Can I use QueueIamBinding and QueueIamMember together?

Yes, but only if they don’t grant privileges to the same role. If they manage different roles, they can coexist without conflicts.

Configuration & Usage

How do I generate the policyData for QueueIamPolicy?

Use the gcp.organizations.getIAMPolicy data source to generate the policyData, as shown in the example where it’s passed to the policyData property.

Import & Migration

How do I import a queue IAM policy with custom roles?

Use the full name of the custom role in the format [projects/my-project|organizations/my-org]/roles/my-custom-role when importing.

Using a different cloud?

Explore security guides for other cloud providers:

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