>

Managing security sources using the Cloud SCC API

This guide walks you through using the Cloud Security Command Center (Cloud SCC) API to create a source for an organization to generate findings. When you add a source, Cloud SCC will create appropriate sources and assign them the relevant permissions.

Before you begin

Before you set up a source, you'll need to complete the following:

Creating a source

This example shows to create a source with a specific display name and description that will be used in the Cloud SCC dashboard.

The source's ID is automatically assigned by the server.

Python

from google.cloud import securitycenter as securitycenter

client = securitycenter.SecurityCenterClient()
# organization_id is the numeric ID of the organization. e.g.:
# organization_id = "111122222444"
org_name = "organizations/{org_id}".format(org_id=organization_id)

created = client.create_source(
    org_name,
    {
        "display_name": "Customized Display Name",
        "description": "A new custom source that does X",
    },
)
print("Created Source: {}".format(created.name))

Java

static Source createSource(OrganizationName organizationName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to create a source in an organization.
    // OrganizationName organizationName = OrganizationName.of(/*organizationId=*/"123234324");
    Source source =
        Source.newBuilder()
            .setDisplayName("Customized Display Name")
            .setDescription("A new custom source that does X")
            .build();

    CreateSourceRequest.Builder request =
        CreateSourceRequest.newBuilder().setParent(organizationName.toString()).setSource(source);

    // Call the API.
    Source response = client.createSource(request.build());

    System.out.println("Created Source: " + response);
    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	securitycenterpb "google.golang.org/genproto/googleapis/cloud/securitycenter/v1"
)

// createSource creates a new source for organization orgID. orgID is
// the numeric identifier of the organization
func createSource(w io.Writer, orgID string) error {
	// orgID := "12321311"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &securitycenterpb.CreateSourceRequest{
		Source: &securitycenterpb.Source{
			DisplayName: "Customized Display Name",
			Description: "A new custom source that does X",
		},
		Parent: fmt.Sprintf("organizations/%s", orgID),
	}
	source, err := client.CreateSource(ctx, req)
	if err != nil {
		return fmt.Errorf("CreateSource: %v", err)
	}

	fmt.Fprintf(w, "New source created: %s\n", source.Name)
	fmt.Fprintf(w, "Display Name: %s\n", source.DisplayName)
	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();
// organizationId is numeric organization identifier.
/*
 * TODO(developer): Uncomment the following lines
 */
// const organizationId = "1234567777";
async function createSource() {
  const [source] = await client.createSource({
    source: {
      displayName: 'Customized Display Name',
      description: 'A new custom source that does X',
    },
    parent: client.organizationPath(organizationId),
  });
  console.log('New Source: %j', source);
}
createSource();

Updating a source

You can update a source's display name and description after it's created. You can also use a field mask to update only one field. The example below uses a field mask to only update the display name, leaving the description unchanged.

Python

from google.cloud import securitycenter as securitycenter
from google.protobuf import field_mask_pb2

client = securitycenter.SecurityCenterClient()

# Field mask to only update the display name.
field_mask = field_mask_pb2.FieldMask(paths=["display_name"])

# source_name is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "organizations/{organization_id}/sources/{source_id}"
# e.g.:
# source_name = "organizations/111122222444/sources/1234"
updated = client.update_source(
    {"name": source_name, "display_name": "Updated Display Name"},
    update_mask=field_mask,
)
print("Updated Source: {}".format(updated))

Java

static Source updateSource(SourceName sourceName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to update a source.
    // SourceName sourceName = SourceName.of(/*organization=*/"123234324",/*source=*/
    // "423432321");
    Source source =
        Source.newBuilder()
            .setDisplayName("Updated Display Name")
            .setName(sourceName.toString())
            .build();
    FieldMask updateMask = FieldMask.newBuilder().addPaths("display_name").build();

    UpdateSourceRequest.Builder request =
        UpdateSourceRequest.newBuilder().setSource(source).setUpdateMask(updateMask);

    // Call the API.
    Source response = client.updateSource(request.build());

    System.out.println("Updated Source: " + response);
    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	securitycenterpb "google.golang.org/genproto/googleapis/cloud/securitycenter/v1"
	"google.golang.org/genproto/protobuf/field_mask"
)

// updateSource changes a sources display name to "New Display Name" for a
// specific source. sourceName is the full resource name of the source to be
// updated.
func updateSource(w io.Writer, sourceName string) error {
	// sourceName := "organizations/111122222444/sources/1234"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &securitycenterpb.UpdateSourceRequest{
		Source: &securitycenterpb.Source{
			Name:        sourceName,
			DisplayName: "New Display Name",
		},
		// Only update the display name field (if not set all mutable
		// fields of the source will be updated.
		UpdateMask: &field_mask.FieldMask{
			Paths: []string{"display_name"},
		},
	}
	source, err := client.UpdateSource(ctx, req)
	if err != nil {
		return fmt.Errorf("UpdateSource: %v", err)
	}
	fmt.Fprintf(w, "Source Name: %s, ", source.Name)
	fmt.Fprintf(w, "Display name: %s, ", source.DisplayName)
	fmt.Fprintf(w, "Description: %s\n", source.Description)

	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();
// sourceName is the full resource path to the update target.
/*
 * TODO(developer): Uncomment the following lines
 */
// const sourceName = "organizations/111122222444/sources/1234";
async function updateSource() {
  const [source] = await client.updateSource({
    source: {
      name: sourceName,
      displayName: 'New Display Name',
    },
    // Only update the display name field (if not set all mutable
    // fields of the source will be updated.
    updateMask: {paths: ['display_name']},
  });
  console.log('Updated source: %j', source);
}

updateSource();

Setting Cloud IAM policies on a source

After you create a source, update the Cloud Identity and Access Management (Cloud IAM) policies to allow

Python

from google.cloud import securitycenter as securitycenter
from google.iam.v1 import policy_pb2

client = securitycenter.SecurityCenterClient()

# source_name is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "organizations/{organization_id}/sources/{source_id}"
# e.g.:
# source_name = "organizations/111122222444/sources/1234"
# Get the old policy so we can do an incremental update.
old_policy = client.get_iam_policy(source_name)
print("Old Policy: {}".format(old_policy))

# Setup a new IAM binding.
binding = policy_pb2.Binding()
binding.role = "roles/securitycenter.findingsEditor"
# user_email is an e-mail address known to Cloud IAM (e.g. a gmail address).
# user_mail = user@somedomain.com
binding.members.append("user:{}".format(user_email))

# Setting the e-tag avoids over-write existing policy
updated = client.set_iam_policy(
    source_name, {"etag": old_policy.etag, "bindings": [binding]}
)

print("Updated Policy: {}".format(updated))

Java

static Policy setIamPolicySource(SourceName sourceName, String userEmail) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // userEmail = "someuser@domain.com"
    // Set up IAM Policy for the user userMail to use the role findingsEditor.
    // The user must be a valid google account.
    Policy oldPolicy = client.getIamPolicy(sourceName.toString());
    Binding bindings =
        Binding.newBuilder()
            .setRole("roles/securitycenter.findingsEditor")
            .addMembers("user:" + userEmail)
            .build();
    Policy policy = oldPolicy.toBuilder().addBindings(bindings).build();

    // Start setting up a request to set IAM policy for a source.
    // SourceName sourceName = SourceName.of("123234324", "423432321");
    SetIamPolicyRequest.Builder request =
        SetIamPolicyRequest.newBuilder().setPolicy(policy).setResource(sourceName.toString());

    // Call the API.
    Policy response = client.setIamPolicy(request.build());

    System.out.println("Policy: " + response);
    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	iam "google.golang.org/genproto/googleapis/iam/v1"
)

// setSourceIamPolicy grants user roles/securitycenter.findingsEditor permision
// for a source. sourceName is the full resource name of the source to be
// updated. user is an email address that IAM can grant permissions to.
func setSourceIamPolicy(w io.Writer, sourceName string, user string) error {
	// sourceName := "organizations/111122222444/sources/1234"
	// user := "someuser@some_domain.com
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	// Retrieve the existing policy so we can update only a specific
	// field.
	existing, err := client.GetIamPolicy(ctx, &iam.GetIamPolicyRequest{
		Resource: sourceName,
	})
	if err != nil {
		return fmt.Errorf("GetIamPolicy(%s): %v", sourceName, err)
	}

	req := &iam.SetIamPolicyRequest{
		Resource: sourceName,
		Policy: &iam.Policy{
			// Enables partial update of existing policy
			Etag: existing.Etag,
			Bindings: []*iam.Binding{{
				Role: "roles/securitycenter.findingsEditor",
				// New IAM Binding for the user.
				Members: []string{fmt.Sprintf("user:%s", user)},
			},
			},
		},
	}
	policy, err := client.SetIamPolicy(ctx, req)
	if err != nil {
		return fmt.Errorf("SetIamPolicy(%s, %v): %v", sourceName, req.Policy, err)
	}

	fmt.Fprint(w, "Bindings:\n")
	for _, binding := range policy.Bindings {
		for _, member := range binding.Members {
			fmt.Fprintf(w, "Principal: %s Role: %s\n", member, binding.Role)
		}
	}
	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();

async function setSourceIamPolicy() {
  // sourceName is the full resource name of the source to be
  // updated.
  // user is an email address that IAM can grant permissions to.
  /*
   * TODO(developer): Uncomment the following lines
   */
  // const sourceName = "organizations/111122222444/sources/1234";
  // const user = "someuser@domain.com";
  const [existingPolicy] = await client.getIamPolicy({
    resource: sourceName,
  });

  const [updatedPolicy] = await client.setIamPolicy({
    resource: sourceName,
    policy: {
      // Enables partial update of existing policy
      etag: existingPolicy.etag,
      bindings: [
        {
          role: 'roles/securitycenter.findingsEditor',
          // New IAM Binding for the user.
          members: [`user:${user}`],
        },
      ],
    },
  });
  console.log('Updated policy: %j', updatedPolicy);
}
setSourceIamPolicy();

Get a specific source

You can verify that a source was created or updated appropriately by querying Cloud SCC with the source's absolute resource name:

gcloud

  # Note: For GCloud you can use either full resource name or just ID Flags.
  # In this example, we are using ID Flags.
  # ORGANIZATION_ID=12344321
  # SOURCE_ID=43211234

  gcloud alpha scc sources describe $ORGANIZATION_ID --source=$SOURCE_ID

For more examples, run:

  gcloud alpha scc sources describe --help

Python

from google.cloud import securitycenter as securitycenter
from google.protobuf import field_mask_pb2

client = securitycenter.SecurityCenterClient()

# source_name is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "organizations/{organization_id}/sources/{source_id}"
# e.g.:
# source_name = "organizations/111122222444/sources/1234"
source = client.get_source(source_name)

print("Source: {}".format(source))

Java

static Source getSource(SourceName sourceName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to get a source.
    // SourceName sourceName = SourceName.of(/*organization=*/"123234324",/*source=*/
    // "423432321");
    GetSourceRequest.Builder request =
        GetSourceRequest.newBuilder().setName(sourceName.toString());

    // Call the API.
    Source response = client.getSource(request.build());

    System.out.println("Source: " + response);
    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	securitycenterpb "google.golang.org/genproto/googleapis/cloud/securitycenter/v1"
)

// getSource retrieves a source by its resource name and print it to w.
// sourceName is the full resource name of the source to be updated.
func getSource(w io.Writer, sourceName string) error {
	// sourceName := "organizations/111122222444/sources/1234"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &securitycenterpb.GetSourceRequest{
		Name: sourceName,
	}
	source, err := client.GetSource(ctx, req)
	if err != nil {
		return fmt.Errorf("GetSource: %v", err)
	}
	fmt.Fprintf(w, "Source: %v\n", source.Name)
	fmt.Fprintf(w, "Display Name: %v\n", source.DisplayName)
	fmt.Fprintf(w, "Description: %v\n", source.Description)
	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();
// sourceName is the full resource name of the source to be retrieved.
/*
 * TODO(developer): Uncomment the following lines
 */
// const sourceName = "organizations/111122222444/sources/1234";
async function getSource() {
  const [source] = await client.getSource({name: sourceName});
  console.log('Source: %j', source);
}

getSource();

Listing Sources

Cloud SCC enables you to list a specific source, and to list all sources currently available in an organization:

Python

from google.cloud import securitycenter as securitycenter

# Create a new client.
client = securitycenter.SecurityCenterClient()
# organization_id is the numeric ID of the organization. e.g.:
# organization_id = "111122222444"
org_name = "organizations/{org_id}".format(org_id=organization_id)

# Call the API and print out each existing source.
for i, source in enumerate(client.list_sources(org_name)):
    print(i, source)

Java

static ImmutableList<Source> listSources(OrganizationName organizationName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to list sources in an organization.
    // OrganizationName organizationName = OrganizationName.of(/*organizationId=*/"123234324");
    ListSourcesRequest.Builder request =
        ListSourcesRequest.newBuilder().setParent(organizationName.toString());

    // Call the API.
    ListSourcesPagedResponse response = client.listSources(request.build());

    // This creates one list for all sources.  If your organization has a large number of sources
    // this can cause out of memory issues.  You can process them batches by returning
    // the Iterable returned response.iterateAll() directly.
    ImmutableList<Source> results = ImmutableList.copyOf(response.iterateAll());
    System.out.println("Sources:");
    System.out.println(results);
    return results;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	"google.golang.org/api/iterator"
	securitycenterpb "google.golang.org/genproto/googleapis/cloud/securitycenter/v1"
)

// listSources prints all sources in  orgID to w.  orgID is the numeric
// identifier of the organization.
func listSources(w io.Writer, orgID string) error {
	// orgID := "12321311"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &securitycenterpb.ListSourcesRequest{
		Parent: fmt.Sprintf("organizations/%s", orgID),
	}
	it := client.ListSources(ctx, req)
	for {
		source, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return fmt.Errorf("it.Next: %v", err)
		}
		fmt.Fprintf(w, "Source Name: %s, ", source.Name)
		fmt.Fprintf(w, "Display name: %s, ", source.DisplayName)
		fmt.Fprintf(w, "Description: %s\n", source.Description)
	}
	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();
//  organizationId is the numeric ID of the organization.
/*
 * TODO(developer): Uncomment the following lines
 */
// const organizaionId = "111122222444";
const orgName = client.organizationPath(organizationId);
// Call the API with automatic pagination.
async function listSources() {
  const [response] = await client.listSources({parent: orgName});
  let count = 0;
  console.log('Sources:');
  Array.from(response).forEach(source =>
    console.log('%d %j', ++count, source)
  );
}

listSources();

Getting Cloud IAM policies

You can check if the appropriate Cloud IAM policies have been applied to a source by getting the current Cloud IAM policy data from Cloud SCC:

Python

from google.cloud import securitycenter as securitycenter
from google.iam.v1 import policy_pb2

client = securitycenter.SecurityCenterClient()

# source_name is the resource path for a source that has been
# created previously (you can use list_sources to find a specific one).
# Its format is:
# source_name = "organizations/{organization_id}/sources/{source_id}"
# e.g.:
# source_name = "organizations/111122222444/sources/1234"
# Get the old policy so we can do an incremental update.
policy = client.get_iam_policy(source_name)
print("Policy: {}".format(policy))

Java

static Policy getIamPolicySource(SourceName sourceName) {
  try (SecurityCenterClient client = SecurityCenterClient.create()) {
    // Start setting up a request to get IAM policy for a source.
    // SourceName sourceName = SourceName.of(/*organization=*/"123234324",/*source=*/
    // "423432321");
    GetIamPolicyRequest request =
        GetIamPolicyRequest.newBuilder().setResource(sourceName.toString()).build();

    // Call the API.
    Policy response = client.getIamPolicy(request);

    System.out.println("Policy: " + response);
    return response;
  } catch (IOException e) {
    throw new RuntimeException("Couldn't create client.", e);
  }
}

Go

import (
	"context"
	"fmt"
	"io"

	securitycenter "cloud.google.com/go/securitycenter/apiv1"
	iam "google.golang.org/genproto/googleapis/iam/v1"
)

// getSourceIamPolicy prints the policy for sourceName to w and return it.
// sourceName is the full resource name of the source with the policy of interest.
func getSourceIamPolicy(w io.Writer, sourceName string) error {
	// sourceName := "organizations/111122222444/sources/1234"
	// Instantiate a context and a security service client to make API calls.
	ctx := context.Background()
	client, err := securitycenter.NewClient(ctx)
	if err != nil {
		return fmt.Errorf("securitycenter.NewClient: %v", err)
	}
	defer client.Close() // Closing the client safely cleans up background resources.

	req := &iam.GetIamPolicyRequest{
		Resource: sourceName,
	}

	policy, err := client.GetIamPolicy(ctx, req)
	if err != nil {
		return fmt.Errorf("GetIamPolicy(%s): %v", sourceName, err)
	}

	fmt.Fprintf(w, "Policy: %v", policy)
	return nil
}

Node.js

// Imports the Google Cloud client library.
const {SecurityCenterClient} = require('@google-cloud/security-center');

// Creates a new client.
const client = new SecurityCenterClient();

async function getSourceIamPolicy() {
  // sourceName is the full resource name to retrieve the policy for.
  /*
   * TODO(developer): Uncomment the following lines
   */
  // const sourceName = "organizations/111122222444/sources/1234";

  const [existingPolicy] = await client.getIamPolicy({
    resource: sourceName,
  });

  console.log('Current policy: %j', existingPolicy);
}
getSourceIamPolicy();
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