Manage GCP Dataplex Task IAM Policies

The gcp:dataplex/taskIamPolicy:TaskIamPolicy resource, part of the Pulumi GCP provider, controls IAM permissions for Dataplex tasks using three distinct approaches: full policy replacement (TaskIamPolicy), role-level bindings (TaskIamBinding), or individual member grants (TaskIamMember). This guide focuses on three capabilities: authoritative policy replacement, role-level member bindings, and incremental member grants.

These IAM resources reference existing Dataplex tasks within lakes and require project and location configuration. The examples are intentionally small. Combine them with your own task definitions and organizational IAM structure.

Replace the entire IAM policy for a task

When you need complete control over who can access a Dataplex task, you can set the entire IAM policy at once.

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

TaskIamPolicy is authoritative: it replaces any existing policy attached to the task. The policyData comes from the getIAMPolicy data source, which defines bindings (role-to-members mappings). Use this when you want to manage all permissions for a task in one place, but be aware it cannot coexist with TaskIamBinding or TaskIamMember resources on the same task.

Grant a role to multiple members at once

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

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

TaskIamBinding is authoritative for the specified role: it sets the complete member list for that role while preserving other roles on the task. The members array accepts user, serviceAccount, group, and domain identities. You can use multiple TaskIamBinding resources on the same task as long as they target different roles.

Add a single member to a role incrementally

When you need to grant access to one additional user without modifying existing permissions, add individual members.

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

TaskIamMember is non-authoritative: it adds one member to a role without affecting other members already assigned to that role. This is useful when different teams manage access independently. You can combine TaskIamMember with TaskIamBinding as long as they don’t grant the same role.

Beyond these examples

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

The examples reference pre-existing infrastructure such as Dataplex tasks within lakes, and GCP project and location configuration. They focus on IAM permission assignment rather than task or lake provisioning.

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

Conditional IAM bindings (condition blocks)
Custom role definitions
Service account creation and management
Policy conflict resolution strategies

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 TaskIamPolicy resource reference for all available configuration options.

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Frequently Asked Questions

Resource Conflicts & Compatibility

Why am I getting conflicts when using TaskIamPolicy with other IAM resources?

TaskIamPolicy is authoritative and replaces the entire IAM policy. It cannot be used alongside TaskIamBinding or TaskIamMember, as they’ll fight over the policy state. Use TaskIamPolicy alone, or use TaskIamBinding/TaskIamMember without TaskIamPolicy.

Can I use TaskIamBinding and TaskIamMember together?

Yes, but only if they manage different roles. If both resources grant privileges to the same role, they’ll conflict. Keep each role managed by either TaskIamBinding or TaskIamMember, not both.

Resource Selection & Usage

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

Choose based on how much control you need:

TaskIamPolicy - Authoritative for the entire policy (replaces all existing permissions)
TaskIamBinding - Authoritative for a specific role (preserves other roles)
TaskIamMember - Non-authoritative (adds a single member, preserves other members for the role)

How do I grant IAM permissions using TaskIamPolicy?

Use the gcp.organizations.getIAMPolicy data source to generate policy data, then pass it to the policyData property of TaskIamPolicy.

Import & Migration

How do I import a custom IAM role?

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

Using a different cloud?

Explore security guides for other cloud providers:

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