Manage GCP Dataproc Autoscaling Policy IAM Bindings

The gcp:dataproc/autoscalingPolicyIamBinding:AutoscalingPolicyIamBinding resource, part of the Pulumi GCP provider, manages IAM role bindings for Dataproc autoscaling policies, controlling which identities can access or modify policies. This guide focuses on two capabilities: granting roles to multiple members and adding individual members incrementally.

IAM bindings reference existing autoscaling policies and require project and location configuration. The examples are intentionally small. Combine them with your own policy definitions and identity management.

Grant a role to multiple members at once

When onboarding teams or granting viewer access to analysts, you often need to assign the same role to multiple users or service accounts simultaneously.

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

const binding = new gcp.dataproc.AutoscalingPolicyIamBinding("binding", {
    project: basic.project,
    location: basic.location,
    policyId: basic.policyId,
    role: "roles/viewer",
    members: ["user:jane@example.com"],
});

import pulumi
import pulumi_gcp as gcp

binding = gcp.dataproc.AutoscalingPolicyIamBinding("binding",
    project=basic["project"],
    location=basic["location"],
    policy_id=basic["policyId"],
    role="roles/viewer",
    members=["user:jane@example.com"])

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := dataproc.NewAutoscalingPolicyIamBinding(ctx, "binding", &dataproc.AutoscalingPolicyIamBindingArgs{
			Project:  pulumi.Any(basic.Project),
			Location: pulumi.Any(basic.Location),
			PolicyId: pulumi.Any(basic.PolicyId),
			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.Dataproc.AutoscalingPolicyIamBinding("binding", new()
    {
        Project = basic.Project,
        Location = basic.Location,
        PolicyId = basic.PolicyId,
        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.dataproc.AutoscalingPolicyIamBinding;
import com.pulumi.gcp.dataproc.AutoscalingPolicyIamBindingArgs;
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 AutoscalingPolicyIamBinding("binding", AutoscalingPolicyIamBindingArgs.builder()
            .project(basic.project())
            .location(basic.location())
            .policyId(basic.policyId())
            .role("roles/viewer")
            .members("user:jane@example.com")
            .build());

    }
}

resources:
  binding:
    type: gcp:dataproc:AutoscalingPolicyIamBinding
    properties:
      project: ${basic.project}
      location: ${basic.location}
      policyId: ${basic.policyId}
      role: roles/viewer
      members:
        - user:jane@example.com

The AutoscalingPolicyIamBinding resource is authoritative for the specified role: it replaces all members for that role while preserving other roles on the policy. The members array accepts user accounts, service accounts, groups, and special identifiers like allUsers. The policyId and location properties identify which autoscaling policy receives the binding.

Add a single member to a role incrementally

When granting access to individual users, you can add members one at a time without affecting existing permissions.

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

const member = new gcp.dataproc.AutoscalingPolicyIamMember("member", {
    project: basic.project,
    location: basic.location,
    policyId: basic.policyId,
    role: "roles/viewer",
    member: "user:jane@example.com",
});

import pulumi
import pulumi_gcp as gcp

member = gcp.dataproc.AutoscalingPolicyIamMember("member",
    project=basic["project"],
    location=basic["location"],
    policy_id=basic["policyId"],
    role="roles/viewer",
    member="user:jane@example.com")

package main

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

func main() {
	pulumi.Run(func(ctx *pulumi.Context) error {
		_, err := dataproc.NewAutoscalingPolicyIamMember(ctx, "member", &dataproc.AutoscalingPolicyIamMemberArgs{
			Project:  pulumi.Any(basic.Project),
			Location: pulumi.Any(basic.Location),
			PolicyId: pulumi.Any(basic.PolicyId),
			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.Dataproc.AutoscalingPolicyIamMember("member", new()
    {
        Project = basic.Project,
        Location = basic.Location,
        PolicyId = basic.PolicyId,
        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.dataproc.AutoscalingPolicyIamMember;
import com.pulumi.gcp.dataproc.AutoscalingPolicyIamMemberArgs;
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 AutoscalingPolicyIamMember("member", AutoscalingPolicyIamMemberArgs.builder()
            .project(basic.project())
            .location(basic.location())
            .policyId(basic.policyId())
            .role("roles/viewer")
            .member("user:jane@example.com")
            .build());

    }
}

resources:
  member:
    type: gcp:dataproc:AutoscalingPolicyIamMember
    properties:
      project: ${basic.project}
      location: ${basic.location}
      policyId: ${basic.policyId}
      role: roles/viewer
      member: user:jane@example.com

The AutoscalingPolicyIamMember resource is non-authoritative: it adds a single member to a role without replacing existing members. This approach works well for incremental access grants where you don’t want to manage the complete member list. The member property accepts the same identity formats as the members array in bindings.

Beyond these examples

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

The examples reference pre-existing infrastructure such as Dataproc autoscaling policies (referenced by policyId) and GCP project and location configuration. They focus on configuring IAM bindings rather than provisioning the policies themselves.

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

Conditional IAM bindings (condition property)
Full policy replacement (AutoscalingPolicyIamPolicy resource)
Custom role definitions
Federated identity configuration

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

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Frequently Asked Questions

Resource Selection & Conflicts

What's the difference between IamPolicy, IamBinding, and IamMember?

AutoscalingPolicyIamPolicy is fully authoritative and replaces the entire IAM policy. AutoscalingPolicyIamBinding is authoritative for a specific role, preserving other roles. AutoscalingPolicyIamMember is non-authoritative, preserving other members for the same role.

What IAM resources can I use together?

You cannot use AutoscalingPolicyIamPolicy with AutoscalingPolicyIamBinding or AutoscalingPolicyIamMember, as they will conflict. You can use AutoscalingPolicyIamBinding with AutoscalingPolicyIamMember only if they grant different roles.

IAM Configuration

What format do custom roles need?

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

What identity formats are supported for members?

The members property supports multiple formats: allUsers, allAuthenticatedUsers, user:{email}, serviceAccount:{email}, group:{email}, domain:{domain}, projectOwner:projectid, projectEditor:projectid, projectViewer:projectid, and federated identities (see Principal identifiers documentation).

Resource Properties

What's the default location for autoscaling policies?

The default location is global if not specified.

What properties can't be changed after creation?

The location, policyId, project, and role properties are immutable and cannot be changed after the resource is created.

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