aws-cdk
Version:
AWS CDK CLI, the command line tool for CDK apps
158 lines • 16.2 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.CloudFormationStack = void 0;
const api_1 = require("../../../../@aws-cdk/tmp-toolkit-helpers/src/api");
const util_1 = require("../../util");
const stack_events_1 = require("../stack-events");
/**
* Represents an (existing) Stack in CloudFormation
*
* Bundle and cache some information that we need during deployment (so we don't have to make
* repeated calls to CloudFormation).
*/
class CloudFormationStack {
static async lookup(cfn, stackName, retrieveProcessedTemplate = false) {
try {
const response = await cfn.describeStacks({ StackName: stackName });
return new CloudFormationStack(cfn, stackName, response.Stacks && response.Stacks[0], retrieveProcessedTemplate);
}
catch (e) {
if (e.name === 'ValidationError' && (0, util_1.formatErrorMessage)(e) === `Stack with id ${stackName} does not exist`) {
return new CloudFormationStack(cfn, stackName, undefined);
}
throw e;
}
}
/**
* Return a copy of the given stack that does not exist
*
* It's a little silly that it needs arguments to do that, but there we go.
*/
static doesNotExist(cfn, stackName) {
return new CloudFormationStack(cfn, stackName);
}
/**
* From static information (for testing)
*/
static fromStaticInformation(cfn, stackName, stack) {
return new CloudFormationStack(cfn, stackName, stack);
}
constructor(cfn, stackName, stack, retrieveProcessedTemplate = false) {
this.cfn = cfn;
this.stackName = stackName;
this.stack = stack;
this.retrieveProcessedTemplate = retrieveProcessedTemplate;
}
/**
* Retrieve the stack's deployed template
*
* Cached, so will only be retrieved once. Will return an empty
* structure if the stack does not exist.
*/
async template() {
if (!this.exists) {
return {};
}
if (this._template === undefined) {
const response = await this.cfn.getTemplate({
StackName: this.stackName,
TemplateStage: this.retrieveProcessedTemplate ? 'Processed' : 'Original',
});
this._template = (response.TemplateBody && (0, util_1.deserializeStructure)(response.TemplateBody)) || {};
}
return this._template;
}
/**
* Whether the stack exists
*/
get exists() {
return this.stack !== undefined;
}
/**
* The stack's ID
*
* Throws if the stack doesn't exist.
*/
get stackId() {
this.assertExists();
return this.stack.StackId;
}
/**
* The stack's current outputs
*
* Empty object if the stack doesn't exist
*/
get outputs() {
if (!this.exists) {
return {};
}
const result = {};
(this.stack.Outputs || []).forEach((output) => {
result[output.OutputKey] = output.OutputValue;
});
return result;
}
/**
* The stack's status
*
* Special status NOT_FOUND if the stack does not exist.
*/
get stackStatus() {
if (!this.exists) {
return new stack_events_1.StackStatus('NOT_FOUND', 'Stack not found during lookup');
}
return stack_events_1.StackStatus.fromStackDescription(this.stack);
}
/**
* The stack's current tags
*
* Empty list if the stack does not exist
*/
get tags() {
return this.stack?.Tags || [];
}
/**
* SNS Topic ARNs that will receive stack events.
*
* Empty list if the stack does not exist
*/
get notificationArns() {
return this.stack?.NotificationARNs ?? [];
}
/**
* Return the names of all current parameters to the stack
*
* Empty list if the stack does not exist.
*/
get parameterNames() {
return Object.keys(this.parameters);
}
/**
* Return the names and values of all current parameters to the stack
*
* Empty object if the stack does not exist.
*/
get parameters() {
if (!this.exists) {
return {};
}
const ret = {};
for (const param of this.stack.Parameters ?? []) {
ret[param.ParameterKey] = param.ResolvedValue ?? param.ParameterValue;
}
return ret;
}
/**
* Return the termination protection of the stack
*/
get terminationProtection() {
return this.stack?.EnableTerminationProtection;
}
assertExists() {
if (!this.exists) {
throw new api_1.ToolkitError(`No stack named '${this.stackName}'`);
}
}
}
exports.CloudFormationStack = CloudFormationStack;
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type { Stack, Tag } from '@aws-sdk/client-cloudformation';\nimport type { Template } from '../../../../@aws-cdk/tmp-toolkit-helpers/src/api';\nimport { ToolkitError } from '../../../../@aws-cdk/tmp-toolkit-helpers/src/api';\nimport { formatErrorMessage, deserializeStructure } from '../../util';\nimport type { ICloudFormationClient } from '../aws-auth';\nimport { StackStatus } from '../stack-events';\n\nexport { Template, TemplateParameter } from '../../../../@aws-cdk/tmp-toolkit-helpers/src/api';\n\n/**\n * Represents an (existing) Stack in CloudFormation\n *\n * Bundle and cache some information that we need during deployment (so we don't have to make\n * repeated calls to CloudFormation).\n */\nexport class CloudFormationStack {\n  public static async lookup(\n    cfn: ICloudFormationClient,\n    stackName: string,\n    retrieveProcessedTemplate: boolean = false,\n  ): Promise<CloudFormationStack> {\n    try {\n      const response = await cfn.describeStacks({ StackName: stackName });\n      return new CloudFormationStack(cfn, stackName, response.Stacks && response.Stacks[0], retrieveProcessedTemplate);\n    } catch (e: any) {\n      if (e.name === 'ValidationError' && formatErrorMessage(e) === `Stack with id ${stackName} does not exist`) {\n        return new CloudFormationStack(cfn, stackName, undefined);\n      }\n      throw e;\n    }\n  }\n\n  /**\n   * Return a copy of the given stack that does not exist\n   *\n   * It's a little silly that it needs arguments to do that, but there we go.\n   */\n  public static doesNotExist(cfn: ICloudFormationClient, stackName: string) {\n    return new CloudFormationStack(cfn, stackName);\n  }\n\n  /**\n   * From static information (for testing)\n   */\n  public static fromStaticInformation(cfn: ICloudFormationClient, stackName: string, stack: Stack) {\n    return new CloudFormationStack(cfn, stackName, stack);\n  }\n\n  private _template: any;\n\n  protected constructor(\n    private readonly cfn: ICloudFormationClient,\n    public readonly stackName: string,\n    private readonly stack?: Stack,\n    private readonly retrieveProcessedTemplate: boolean = false,\n  ) {\n  }\n\n  /**\n   * Retrieve the stack's deployed template\n   *\n   * Cached, so will only be retrieved once. Will return an empty\n   * structure if the stack does not exist.\n   */\n  public async template(): Promise<Template> {\n    if (!this.exists) {\n      return {};\n    }\n\n    if (this._template === undefined) {\n      const response = await this.cfn.getTemplate({\n        StackName: this.stackName,\n        TemplateStage: this.retrieveProcessedTemplate ? 'Processed' : 'Original',\n      });\n      this._template = (response.TemplateBody && deserializeStructure(response.TemplateBody)) || {};\n    }\n    return this._template;\n  }\n\n  /**\n   * Whether the stack exists\n   */\n  public get exists() {\n    return this.stack !== undefined;\n  }\n\n  /**\n   * The stack's ID\n   *\n   * Throws if the stack doesn't exist.\n   */\n  public get stackId() {\n    this.assertExists();\n    return this.stack!.StackId!;\n  }\n\n  /**\n   * The stack's current outputs\n   *\n   * Empty object if the stack doesn't exist\n   */\n  public get outputs(): Record<string, string> {\n    if (!this.exists) {\n      return {};\n    }\n    const result: { [name: string]: string } = {};\n    (this.stack!.Outputs || []).forEach((output) => {\n      result[output.OutputKey!] = output.OutputValue!;\n    });\n    return result;\n  }\n\n  /**\n   * The stack's status\n   *\n   * Special status NOT_FOUND if the stack does not exist.\n   */\n  public get stackStatus(): StackStatus {\n    if (!this.exists) {\n      return new StackStatus('NOT_FOUND', 'Stack not found during lookup');\n    }\n    return StackStatus.fromStackDescription(this.stack!);\n  }\n\n  /**\n   * The stack's current tags\n   *\n   * Empty list if the stack does not exist\n   */\n  public get tags(): Tag[] {\n    return this.stack?.Tags || [];\n  }\n\n  /**\n   * SNS Topic ARNs that will receive stack events.\n   *\n   * Empty list if the stack does not exist\n   */\n  public get notificationArns(): string[] {\n    return this.stack?.NotificationARNs ?? [];\n  }\n\n  /**\n   * Return the names of all current parameters to the stack\n   *\n   * Empty list if the stack does not exist.\n   */\n  public get parameterNames(): string[] {\n    return Object.keys(this.parameters);\n  }\n\n  /**\n   * Return the names and values of all current parameters to the stack\n   *\n   * Empty object if the stack does not exist.\n   */\n  public get parameters(): Record<string, string> {\n    if (!this.exists) {\n      return {};\n    }\n    const ret: Record<string, string> = {};\n    for (const param of this.stack!.Parameters ?? []) {\n      ret[param.ParameterKey!] = param.ResolvedValue ?? param.ParameterValue!;\n    }\n    return ret;\n  }\n\n  /**\n   * Return the termination protection of the stack\n   */\n  public get terminationProtection(): boolean | undefined {\n    return this.stack?.EnableTerminationProtection;\n  }\n\n  private assertExists() {\n    if (!this.exists) {\n      throw new ToolkitError(`No stack named '${this.stackName}'`);\n    }\n  }\n}\n"]}