Manage GCP Data Catalog Tag Template IAM Bindings

The gcp:datacatalog/tagTemplateIamBinding:TagTemplateIamBinding resource, part of the Pulumi GCP provider, manages IAM role bindings for Data Catalog tag templates. The parent resource (gcp.datacatalog.TagTemplate) is deprecated; Google recommends migrating to gcp.dataplex.AspectType for new projects. This guide focuses on two capabilities: authoritative role bindings and non-authoritative member grants.

IAM bindings reference existing tag templates and control who can view or modify them. TagTemplateIamBinding cannot be used with TagTemplateIamPolicy (they conflict), but can coexist with TagTemplateIamMember if they manage different roles. The examples are intentionally small. Combine them with your own tag template infrastructure and identity management.

Grant a role to multiple members

Teams managing access typically grant the same role to multiple users or service accounts, ensuring consistent permissions.

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

const binding = new gcp.datacatalog.TagTemplateIamBinding("binding", {
    tagTemplate: basicTagTemplate.name,
    role: "roles/viewer",
    members: ["user:jane@example.com"],
});

import pulumi
import pulumi_gcp as gcp

binding = gcp.datacatalog.TagTemplateIamBinding("binding",
    tag_template=basic_tag_template["name"],
    role="roles/viewer",
    members=["user:jane@example.com"])

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := datacatalog.NewTagTemplateIamBinding(ctx, "binding", &datacatalog.TagTemplateIamBindingArgs{
			TagTemplate: pulumi.Any(basicTagTemplate.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.DataCatalog.TagTemplateIamBinding("binding", new()
    {
        TagTemplate = basicTagTemplate.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.datacatalog.TagTemplateIamBinding;
import com.pulumi.gcp.datacatalog.TagTemplateIamBindingArgs;
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 TagTemplateIamBinding("binding", TagTemplateIamBindingArgs.builder()
            .tagTemplate(basicTagTemplate.name())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

resources:
  binding:
    type: gcp:datacatalog:TagTemplateIamBinding
    properties:
      tagTemplate: ${basicTagTemplate.name}
      role: roles/viewer
      members:
        - user:jane@example.com

The role property specifies which permission set to grant (e.g., “roles/viewer”). The members array lists all identities receiving that role; this binding is authoritative for the role, meaning it replaces any previous member list. The tagTemplate property identifies which tag template receives the binding.

Add a single member to a role

When onboarding individual users, non-authoritative member grants preserve existing assignments.

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

const member = new gcp.datacatalog.TagTemplateIamMember("member", {
    tagTemplate: basicTagTemplate.name,
    role: "roles/viewer",
    member: "user:jane@example.com",
});

import pulumi
import pulumi_gcp as gcp

member = gcp.datacatalog.TagTemplateIamMember("member",
    tag_template=basic_tag_template["name"],
    role="roles/viewer",
    member="user:jane@example.com")

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := datacatalog.NewTagTemplateIamMember(ctx, "member", &datacatalog.TagTemplateIamMemberArgs{
			TagTemplate: pulumi.Any(basicTagTemplate.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.DataCatalog.TagTemplateIamMember("member", new()
    {
        TagTemplate = basicTagTemplate.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.datacatalog.TagTemplateIamMember;
import com.pulumi.gcp.datacatalog.TagTemplateIamMemberArgs;
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 TagTemplateIamMember("member", TagTemplateIamMemberArgs.builder()
            .tagTemplate(basicTagTemplate.name())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:datacatalog:TagTemplateIamMember
    properties:
      tagTemplate: ${basicTagTemplate.name}
      role: roles/viewer
      member: user:jane@example.com

The member property (singular) adds one identity to the role without affecting other members. Use TagTemplateIamMember when you need granular control over individual access grants, or when multiple teams manage the same role independently.

Beyond these examples

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

The examples reference pre-existing infrastructure such as Data Catalog tag templates. They focus on configuring IAM bindings rather than provisioning tag templates themselves.

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

Conditional IAM bindings (condition property)
Custom role definitions
Project and region specification (defaults to provider config)
Policy-level management (TagTemplateIamPolicy resource)

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

Let's manage GCP Data Catalog Tag Template IAM Bindings

Get started with Pulumi Cloud, then follow our quick setup guide to deploy this infrastructure.

Try Pulumi Cloud for FREE

Frequently Asked Questions

Migration & Deprecation

Is TagTemplateIamBinding deprecated?

The parent resource gcp.datacatalog.TagTemplate is deprecated and will be removed in a future major release. Migrate to gcp.dataplex.AspectType instead. See the transition guide at https://cloud.google.com/dataplex/docs/transition-to-dataplex-catalog for migration steps.

Resource Conflicts & Compatibility

Can I use TagTemplateIamPolicy with TagTemplateIamBinding?

No, TagTemplateIamPolicy cannot be used with TagTemplateIamBinding or TagTemplateIamMember because they will conflict over policy management. Choose one approach for your use case.

Can I use TagTemplateIamBinding and TagTemplateIamMember together?

Yes, but only if they don’t grant privileges to the same role. If both resources manage the same role, they will conflict.

Which IAM resource should I use for my use case?

Use TagTemplateIamPolicy for authoritative full policy control (replaces existing policy). Use TagTemplateIamBinding for authoritative role management (preserves other roles). Use TagTemplateIamMember for non-authoritative member grants (preserves other members for the role).

Configuration & Identity Management

What identity formats can I use in the members list?

You can use allUsers, allAuthenticatedUsers, user:{email}, serviceAccount:{email}, group:{email}, domain:{domain}, projectOwner:projectid, projectEditor:projectid, projectViewer:projectid, and federated identities (e.g., principal://iam.googleapis.com/...).

How do I specify a custom IAM role?

Custom roles must use the format [projects|organizations]/{parent-name}/roles/{role-name}.

Immutability & Limitations

What properties can't I change after creation?

The role, tagTemplate, project, region, and condition properties are immutable and cannot be changed after resource creation.

Can I use only one TagTemplateIamBinding per role?

Yes, only one TagTemplateIamBinding can be used per role, as stated in the role property description.

Using a different cloud?

Explore security guides for other cloud providers:

AWS Guides Azure Guides