Manage GCP Dataplex Glossary IAM Policies

The gcp:dataplex/glossaryIamPolicy:GlossaryIamPolicy resource, part of the Pulumi GCP provider, manages IAM access control for Dataplex glossaries. This guide focuses on three approaches: authoritative policy replacement (GlossaryIamPolicy), role-level member binding (GlossaryIamBinding), and incremental member addition (GlossaryIamMember).

These resources reference existing glossaries and require a configured GCP project and location. The examples are intentionally small. Combine them with your own glossary resources and organizational IAM structure. Note that GlossaryIamPolicy cannot be used alongside GlossaryIamBinding or GlossaryIamMember, as they conflict over policy ownership.

Replace the entire IAM policy for a glossary

When you need complete control over glossary access, 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.dataplex.GlossaryIamPolicy("policy", {
    project: glossaryTestId.project,
    location: glossaryTestId.location,
    glossaryId: glossaryTestId.glossaryId,
    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.GlossaryIamPolicy("policy",
    project=glossary_test_id["project"],
    location=glossary_test_id["location"],
    glossary_id=glossary_test_id["glossaryId"],
    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.NewGlossaryIamPolicy(ctx, "policy", &dataplex.GlossaryIamPolicyArgs{
			Project:    pulumi.Any(glossaryTestId.Project),
			Location:   pulumi.Any(glossaryTestId.Location),
			GlossaryId: pulumi.Any(glossaryTestId.GlossaryId),
			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.GlossaryIamPolicy("policy", new()
    {
        Project = glossaryTestId.Project,
        Location = glossaryTestId.Location,
        GlossaryId = glossaryTestId.GlossaryId,
        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.GlossaryIamPolicy;
import com.pulumi.gcp.dataplex.GlossaryIamPolicyArgs;
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 GlossaryIamPolicy("policy", GlossaryIamPolicyArgs.builder()
            .project(glossaryTestId.project())
            .location(glossaryTestId.location())
            .glossaryId(glossaryTestId.glossaryId())
            .policyData(admin.policyData())
            .build());

    }
}

resources:
  policy:
    type: gcp:dataplex:GlossaryIamPolicy
    properties:
      project: ${glossaryTestId.project}
      location: ${glossaryTestId.location}
      glossaryId: ${glossaryTestId.glossaryId}
      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 output from the getIAMPolicy data source, which defines bindings between roles and members. GlossaryIamPolicy is authoritative: it replaces the entire policy, removing any permissions not explicitly listed. The glossaryId, location, and project properties identify which glossary to manage.

Grant a role to multiple members at once

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

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

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

import pulumi
import pulumi_gcp as gcp

binding = gcp.dataplex.GlossaryIamBinding("binding",
    project=glossary_test_id["project"],
    location=glossary_test_id["location"],
    glossary_id=glossary_test_id["glossaryId"],
    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.NewGlossaryIamBinding(ctx, "binding", &dataplex.GlossaryIamBindingArgs{
			Project:    pulumi.Any(glossaryTestId.Project),
			Location:   pulumi.Any(glossaryTestId.Location),
			GlossaryId: pulumi.Any(glossaryTestId.GlossaryId),
			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.GlossaryIamBinding("binding", new()
    {
        Project = glossaryTestId.Project,
        Location = glossaryTestId.Location,
        GlossaryId = glossaryTestId.GlossaryId,
        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.GlossaryIamBinding;
import com.pulumi.gcp.dataplex.GlossaryIamBindingArgs;
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 GlossaryIamBinding("binding", GlossaryIamBindingArgs.builder()
            .project(glossaryTestId.project())
            .location(glossaryTestId.location())
            .glossaryId(glossaryTestId.glossaryId())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

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

GlossaryIamBinding manages all members for a specific role. The members array lists user accounts, service accounts, or groups. This resource is authoritative for its role: it replaces the member list for that role while preserving other roles in the policy. You can use multiple GlossaryIamBinding resources for different roles on the same glossary.

Add a single member to a role incrementally

When you need to grant access to one user without affecting other permissions, add individual members to roles.

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

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

import pulumi
import pulumi_gcp as gcp

member = gcp.dataplex.GlossaryIamMember("member",
    project=glossary_test_id["project"],
    location=glossary_test_id["location"],
    glossary_id=glossary_test_id["glossaryId"],
    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.NewGlossaryIamMember(ctx, "member", &dataplex.GlossaryIamMemberArgs{
			Project:    pulumi.Any(glossaryTestId.Project),
			Location:   pulumi.Any(glossaryTestId.Location),
			GlossaryId: pulumi.Any(glossaryTestId.GlossaryId),
			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.GlossaryIamMember("member", new()
    {
        Project = glossaryTestId.Project,
        Location = glossaryTestId.Location,
        GlossaryId = glossaryTestId.GlossaryId,
        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.GlossaryIamMember;
import com.pulumi.gcp.dataplex.GlossaryIamMemberArgs;
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 GlossaryIamMember("member", GlossaryIamMemberArgs.builder()
            .project(glossaryTestId.project())
            .location(glossaryTestId.location())
            .glossaryId(glossaryTestId.glossaryId())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:dataplex:GlossaryIamMember
    properties:
      project: ${glossaryTestId.project}
      location: ${glossaryTestId.location}
      glossaryId: ${glossaryTestId.glossaryId}
      role: roles/viewer
      member: user:jane@example.com

GlossaryIamMember adds a single member to a role without replacing the existing member list. The member property specifies one identity (user, service account, or group). This is the least disruptive approach: it preserves all existing permissions and only adds the new member. You can use multiple GlossaryIamMember resources to build up access incrementally.

Beyond these examples

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

The examples reference pre-existing infrastructure such as Dataplex glossary resources and a GCP project with appropriate location. They focus on IAM policy configuration rather than provisioning glossaries or managing organizational structure.

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

Conditional IAM bindings (conditions property)
Custom role definitions
Service account creation and management
Audit logging configuration

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 Glossary IAM Policy resource reference for all available configuration options.

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Frequently Asked Questions

Resource Selection & Conflicts

What's the difference between GlossaryIamPolicy, GlossaryIamBinding, and GlossaryIamMember?

GlossaryIamPolicy is authoritative and replaces the entire IAM policy. GlossaryIamBinding is authoritative for a specific role, preserving other roles. GlossaryIamMember is non-authoritative, adding a single member to a role while preserving other members.

Can I use GlossaryIamPolicy with GlossaryIamBinding or GlossaryIamMember?

No, GlossaryIamPolicy cannot be used alongside GlossaryIamBinding or GlossaryIamMember because they will conflict over policy control.

Can I use GlossaryIamBinding and GlossaryIamMember together?

Yes, but only if they manage different roles. Using both for the same role will cause conflicts.

Configuration & Usage

How do I grant a role to multiple users at once?

Use GlossaryIamBinding with a members array, such as members: ["user:jane@example.com", "user:john@example.com"].

How do I import existing IAM policies into Pulumi?

Import format depends on the resource type. GlossaryIamPolicy uses the glossary identifier, GlossaryIamBinding adds the role, and GlossaryIamMember adds both role and member identity (space-delimited).

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