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createDenyPolicy.js
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createDenyPolicy.js
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// Copyright 2022 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/**
* Creates a deny policy.
*
* You can add deny policies to organizations, folders, and projects.
* Each of these resources can have up to 5 deny policies.
* Deny policies contain deny rules, which specify the following:
* 1. The permissions to deny and/or exempt.
* 2. The principals that are denied, or exempted from denial.
* 3. An optional condition on when to enforce the deny rules.
*
* @param {string} projectId - ID or number of the Google Cloud project you want to use.
* @param {string} policyId - Specify the ID of the deny policy you want to create.
*/
function main(projectId, policyId) {
// [START iam_create_deny_policy]
/**
* TODO(developer): Uncomment and replace these variables before running the sample.
*/
// const projectId = 'YOUR_PROJECT_ID';
// const policyID = 'YOUR_POLICY_ID';
const {PoliciesClient} = require('@google-cloud/iam').v2;
const iamClient = new PoliciesClient();
// Each deny policy is attached to an organization, folder, or project.
// To work with deny policies, specify the attachment point.
//
// Its format can be one of the following:
// 1. cloudresourcemanager.googleapis.com/organizations/ORG_ID
// 2. cloudresourcemanager.googleapis.com/folders/FOLDER_ID
// 3. cloudresourcemanager.googleapis.com/projects/PROJECT_ID
//
// The attachment point is identified by its URL-encoded resource name. Hence, replace
// the "/" with "%2F".
const attachmentPoint = `cloudresourcemanager.googleapis.com%2Fprojects%2F${projectId}`;
const denyRule = {
// Add one or more principals who should be denied the permissions specified in this rule.
// For more information on allowed values, see: https://cloud.google.com/iam/help/deny/principal-identifiers
deniedPrincipals: ['principalSet://goog/public:all'],
// Optionally, set the principals who should be exempted from the
// list of denied principals. For example, if you want to deny certain permissions
// to a group but exempt a few principals, then add those here.
// exceptionPrincipals: ['principalSet://goog/group/project-admins@example.com'],
// Set the permissions to deny.
// The permission value is of the format: service_fqdn/resource.action
// For the list of supported permissions, see: https://cloud.google.com/iam/help/deny/supported-permissions
deniedPermissions: ['cloudresourcemanager.googleapis.com/projects.delete'],
// Optionally, add the permissions to be exempted from this rule.
// Meaning, the deny rule will not be applicable to these permissions.
// exceptionPermissions: ['cloudresourcemanager.googleapis.com/projects.create']
//
// Set the condition which will enforce the deny rule.
// If this condition is true, the deny rule will be applicable. Else, the rule will not be enforced.
// The expression uses Common Expression Language syntax (CEL).
// Here we block access based on tags.
//
// Here, we create a deny rule that denies the cloudresourcemanager.googleapis.com/projects.delete permission to everyone except project-admins@example.com for resources that are tagged test.
// A tag is a key-value pair that can be attached to an organization, folder, or project.
// For more info, see: https://cloud.google.com/iam/docs/deny-access#create-deny-policy
denialCondition: {
expression: '!resource.matchTag("12345678/env", "test")',
},
};
async function createDenyPolicy() {
const request = {
parent: `policies/${attachmentPoint}/denypolicies`,
policy: {
displayName: 'Restrict project deletion access',
rules: [
{
description:
'block all principals from deleting projects, unless the principal is a member of project-admins@example.com and the project being deleted has a tag with the value test',
denyRule,
},
],
},
policyId,
};
const [operation] = await iamClient.createPolicy(request);
const [policy] = await operation.promise();
console.log(`Created the deny policy: ${policy.name}`);
}
createDenyPolicy();
// [END iam_create_deny_policy]
}
process.on('unhandledRejection', err => {
console.error(err.message);
process.exitCode = 1;
});
main(...process.argv.slice(2));