Manage GCP Dataplex Task IAM Bindings

The gcp:dataplex/taskIamBinding:TaskIamBinding resource, part of the Pulumi GCP provider, manages IAM access control for Dataplex tasks by binding roles to members. This guide focuses on three capabilities: authoritative role binding to multiple members, non-authoritative single-member grants, and complete policy replacement.

These IAM resources reference existing Dataplex tasks and require task identifiers (taskId, lake, location, project). The examples are intentionally small. Combine them with your own Dataplex task infrastructure and IAM principals.

Grant a role to multiple members

Teams managing Dataplex tasks often need to grant the same role to multiple users or service accounts at once, such as giving viewer access to a data engineering team.

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

const binding = new gcp.dataplex.TaskIamBinding("binding", {
    project: example.project,
    location: example.location,
    lake: example.lake,
    taskId: example.taskId,
    role: "roles/viewer",
    members: ["user:jane@example.com"],
});

import pulumi
import pulumi_gcp as gcp

binding = gcp.dataplex.TaskIamBinding("binding",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    task_id=example["taskId"],
    role="roles/viewer",
    members=["user:jane@example.com"])

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := dataplex.NewTaskIamBinding(ctx, "binding", &dataplex.TaskIamBindingArgs{
			Project:  pulumi.Any(example.Project),
			Location: pulumi.Any(example.Location),
			Lake:     pulumi.Any(example.Lake),
			TaskId:   pulumi.Any(example.TaskId),
			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.DataPlex.TaskIamBinding("binding", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        TaskId = example.TaskId,
        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.dataplex.TaskIamBinding;
import com.pulumi.gcp.dataplex.TaskIamBindingArgs;
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 TaskIamBinding("binding", TaskIamBindingArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .taskId(example.taskId())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

resources:
  binding:
    type: gcp:dataplex:TaskIamBinding
    properties:
      project: ${example.project}
      location: ${example.location}
      lake: ${example.lake}
      taskId: ${example.taskId}
      role: roles/viewer
      members:
        - user:jane@example.com

The TaskIamBinding resource is authoritative for the specified role. The members array lists all identities that should have this role; any existing members not in this list will be removed. The role property specifies which permission set to grant, and taskId, lake, and location identify the target task. This approach works well when you manage all members of a role together.

Add a single member to a role

When onboarding individual users or service accounts, you often need to grant access without affecting existing members of the same role.

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

const member = new gcp.dataplex.TaskIamMember("member", {
    project: example.project,
    location: example.location,
    lake: example.lake,
    taskId: example.taskId,
    role: "roles/viewer",
    member: "user:jane@example.com",
});

import pulumi
import pulumi_gcp as gcp

member = gcp.dataplex.TaskIamMember("member",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    task_id=example["taskId"],
    role="roles/viewer",
    member="user:jane@example.com")

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := dataplex.NewTaskIamMember(ctx, "member", &dataplex.TaskIamMemberArgs{
			Project:  pulumi.Any(example.Project),
			Location: pulumi.Any(example.Location),
			Lake:     pulumi.Any(example.Lake),
			TaskId:   pulumi.Any(example.TaskId),
			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.DataPlex.TaskIamMember("member", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        TaskId = example.TaskId,
        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.dataplex.TaskIamMember;
import com.pulumi.gcp.dataplex.TaskIamMemberArgs;
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 TaskIamMember("member", TaskIamMemberArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .taskId(example.taskId())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:dataplex:TaskIamMember
    properties:
      project: ${example.project}
      location: ${example.location}
      lake: ${example.lake}
      taskId: ${example.taskId}
      role: roles/viewer
      member: user:jane@example.com

The TaskIamMember resource is non-authoritative: it adds one member to a role without replacing existing members. The member property specifies a single identity (user, service account, group, or domain). This resource preserves other members of the same role, making it safer for incremental access grants. You can use multiple TaskIamMember resources for the same role, or combine them with TaskIamBinding resources as long as they target different roles.

Replace the entire IAM policy

Some workflows require complete control over a task’s IAM policy, replacing all existing bindings with a new policy document.

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.dataplex.TaskIamPolicy("policy", {
    project: example.project,
    location: example.location,
    lake: example.lake,
    taskId: example.taskId,
    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.dataplex.TaskIamPolicy("policy",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    task_id=example["taskId"],
    policy_data=admin.policy_data)

package main

import (
	"github.com/pulumi/pulumi-gcp/sdk/v9/go/gcp/dataplex"
	"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 = dataplex.NewTaskIamPolicy(ctx, "policy", &dataplex.TaskIamPolicyArgs{
			Project:    pulumi.Any(example.Project),
			Location:   pulumi.Any(example.Location),
			Lake:       pulumi.Any(example.Lake),
			TaskId:     pulumi.Any(example.TaskId),
			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.DataPlex.TaskIamPolicy("policy", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        TaskId = example.TaskId,
        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.dataplex.TaskIamPolicy;
import com.pulumi.gcp.dataplex.TaskIamPolicyArgs;
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 TaskIamPolicy("policy", TaskIamPolicyArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .taskId(example.taskId())
            .policyData(admin.policyData())
            .build());

    }
}

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

The TaskIamPolicy resource is fully authoritative: it replaces the entire IAM policy for the task. The policyData property accepts a policy document, typically retrieved from getIAMPolicy. This approach gives you complete control but removes any bindings not included in the policy. TaskIamPolicy cannot be used alongside TaskIamBinding or TaskIamMember resources; they will conflict over policy ownership.

Beyond these examples

These snippets focus on specific IAM binding features: role-based access control and authoritative vs non-authoritative binding. They’re intentionally minimal rather than full access control configurations.

The examples reference pre-existing infrastructure such as Dataplex tasks (referenced by taskId, lake, location) and GCP projects and IAM principals (users, service accounts, groups). They focus on configuring IAM bindings rather than provisioning the underlying tasks.

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

Conditional IAM bindings (condition property)
Custom role definitions and formatting
Federated identity configuration
Policy conflict resolution between resource types

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 Dataplex TaskIamBinding resource reference for all available configuration options.

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Frequently Asked Questions

Resource Selection & Compatibility

What's the difference between TaskIamPolicy, TaskIamBinding, and TaskIamMember?

TaskIamPolicy is authoritative and replaces the entire IAM policy. TaskIamBinding is authoritative for a specific role, preserving other roles. TaskIamMember is non-authoritative and adds a single member to a role without affecting other members.

Can I use TaskIamPolicy with TaskIamBinding or TaskIamMember?

No, TaskIamPolicy cannot be used with TaskIamBinding or TaskIamMember because they will conflict over the policy.

Can I use TaskIamBinding and TaskIamMember together?

Yes, but only if they don’t grant privileges to the same role. Each role must be managed by either TaskIamBinding or TaskIamMember, not both.

IAM Configuration

How do I specify custom roles for Dataplex Task IAM?

Custom roles must use the full format [projects|organizations]/{parent-name}/roles/{role-name}, for example projects/my-project/roles/my-custom-role.

What member identity formats are supported?

Supported formats include allUsers, allAuthenticatedUsers, user:{email}, serviceAccount:{email}, group:{email}, domain:{domain}, projectOwner:projectid, projectEditor:projectid, projectViewer:projectid, and federated identities like principal://iam.googleapis.com/....

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