Manage GCP Dataplex Asset IAM Permissions

The gcp:dataplex/assetIamMember:AssetIamMember resource, part of the Pulumi GCP provider, manages IAM permissions for Dataplex assets by granting roles to individual members without affecting other role assignments. This guide focuses on three capabilities: single-member role grants, multi-member role bindings, and authoritative policy replacement.

Dataplex IAM resources reference existing assets within lakes and zones. The examples are intentionally small. Combine them with your own Dataplex infrastructure and identity management.

Grant a role to a single member

Most IAM configurations start by granting a specific role to one user or service account, preserving existing members while adding new access.

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

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

import pulumi
import pulumi_gcp as gcp

member = gcp.dataplex.AssetIamMember("member",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    dataplex_zone=example["dataplexZone"],
    asset=example["name"],
    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.NewAssetIamMember(ctx, "member", &dataplex.AssetIamMemberArgs{
			Project:      pulumi.Any(example.Project),
			Location:     pulumi.Any(example.Location),
			Lake:         pulumi.Any(example.Lake),
			DataplexZone: pulumi.Any(example.DataplexZone),
			Asset:        pulumi.Any(example.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.DataPlex.AssetIamMember("member", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        DataplexZone = example.DataplexZone,
        Asset = example.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.dataplex.AssetIamMember;
import com.pulumi.gcp.dataplex.AssetIamMemberArgs;
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 AssetIamMember("member", AssetIamMemberArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .dataplexZone(example.dataplexZone())
            .asset(example.name())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:dataplex:AssetIamMember
    properties:
      project: ${example.project}
      location: ${example.location}
      lake: ${example.lake}
      dataplexZone: ${example.dataplexZone}
      asset: ${example.name}
      role: roles/viewer
      member: user:jane@example.com

The member property specifies who receives access using formats like “user:jane@example.com” or “serviceAccount:app@project.iam.gserviceaccount.com”. The role property defines the permission level. The asset, dataplexZone, lake, and location properties identify which Dataplex asset to configure. This resource is non-authoritative, meaning it adds the member without removing others who already have the role.

Grant a role to multiple members at once

When multiple users or service accounts need the same access level, binding them together ensures consistent permissions.

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

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

import pulumi
import pulumi_gcp as gcp

binding = gcp.dataplex.AssetIamBinding("binding",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    dataplex_zone=example["dataplexZone"],
    asset=example["name"],
    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.NewAssetIamBinding(ctx, "binding", &dataplex.AssetIamBindingArgs{
			Project:      pulumi.Any(example.Project),
			Location:     pulumi.Any(example.Location),
			Lake:         pulumi.Any(example.Lake),
			DataplexZone: pulumi.Any(example.DataplexZone),
			Asset:        pulumi.Any(example.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.DataPlex.AssetIamBinding("binding", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        DataplexZone = example.DataplexZone,
        Asset = example.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.dataplex.AssetIamBinding;
import com.pulumi.gcp.dataplex.AssetIamBindingArgs;
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 AssetIamBinding("binding", AssetIamBindingArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .dataplexZone(example.dataplexZone())
            .asset(example.name())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

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

The members property takes a list of identities rather than a single member. This resource is authoritative for the specified role, replacing any existing member list for that role while preserving other roles on the asset. Use AssetIamBinding when you want to manage all members for a role together.

Replace the entire IAM policy

Organizations that need complete control over all role assignments can define the entire policy in one place.

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.AssetIamPolicy("policy", {
    project: example.project,
    location: example.location,
    lake: example.lake,
    dataplexZone: example.dataplexZone,
    asset: example.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.dataplex.AssetIamPolicy("policy",
    project=example["project"],
    location=example["location"],
    lake=example["lake"],
    dataplex_zone=example["dataplexZone"],
    asset=example["name"],
    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.NewAssetIamPolicy(ctx, "policy", &dataplex.AssetIamPolicyArgs{
			Project:      pulumi.Any(example.Project),
			Location:     pulumi.Any(example.Location),
			Lake:         pulumi.Any(example.Lake),
			DataplexZone: pulumi.Any(example.DataplexZone),
			Asset:        pulumi.Any(example.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.DataPlex.AssetIamPolicy("policy", new()
    {
        Project = example.Project,
        Location = example.Location,
        Lake = example.Lake,
        DataplexZone = example.DataplexZone,
        Asset = example.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.dataplex.AssetIamPolicy;
import com.pulumi.gcp.dataplex.AssetIamPolicyArgs;
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 AssetIamPolicy("policy", AssetIamPolicyArgs.builder()
            .project(example.project())
            .location(example.location())
            .lake(example.lake())
            .dataplexZone(example.dataplexZone())
            .asset(example.name())
            .policyData(admin.policyData())
            .build());

    }
}

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

The policyData property accepts a complete IAM policy document retrieved from getIAMPolicy. The bindings array defines all role assignments for the asset. This resource is fully authoritative, replacing the entire IAM policy. It cannot be used alongside AssetIamBinding or AssetIamMember resources because they would conflict over policy ownership.

Beyond these examples

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

The examples reference pre-existing infrastructure such as Dataplex assets within lakes and zones, and a GCP project with configured location. They focus on configuring IAM permissions rather than provisioning the Dataplex resources themselves.

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

Conditional IAM bindings (condition property)
Custom role definitions and formatting
Service account creation and management
Combining AssetIamBinding with AssetIamMember safely

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 AssetIamMember resource reference for all available configuration options.

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Frequently Asked Questions

Resource Selection & Conflicts

What's the difference between AssetIamPolicy, AssetIamBinding, and AssetIamMember?

AssetIamPolicy is authoritative and replaces the entire IAM policy. AssetIamBinding is authoritative for a specific role, preserving other roles. AssetIamMember is non-authoritative, preserving other members for the same role.

Can I use AssetIamPolicy with AssetIamBinding or AssetIamMember?

No, AssetIamPolicy cannot be used with AssetIamBinding or AssetIamMember because they will conflict over the policy configuration.

Can I use AssetIamBinding and AssetIamMember together?

Yes, but only if they don’t grant privileges to the same role. Using both for the same role will cause conflicts.

Configuration & Identity Formats

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 using principal:// URIs.

How do I specify custom IAM roles?

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

What properties can't be changed after creation?

All properties are immutable: asset, dataplexZone, lake, location, member, project, role, and condition. Any changes require recreating the resource.

Import & Advanced Topics

How do I import IAM resources with custom roles?

Use the full custom role name in the import command, such as projects/my-project/roles/my-custom-role or organizations/my-org/roles/my-custom-role.

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