aws-cdk
Version:
AWS CDK CLI, the command line tool for CDK apps
438 lines • 67.4 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.ParameterValues = exports.TemplateParameters = void 0;
exports.waitForChangeSet = waitForChangeSet;
exports.createDiffChangeSet = createDiffChangeSet;
exports.uploadStackTemplateAssets = uploadStackTemplateAssets;
exports.createChangeSet = createChangeSet;
exports.changeSetHasNoChanges = changeSetHasNoChanges;
exports.waitForStackDelete = waitForStackDelete;
exports.waitForStackDeploy = waitForStackDeploy;
exports.stabilizeStack = stabilizeStack;
const util_1 = require("util");
const cxapi = require("@aws-cdk/cx-api");
const cx_api_1 = require("@aws-cdk/cx-api");
const client_cloudformation_1 = require("@aws-sdk/client-cloudformation");
const cdk_assets_1 = require("cdk-assets");
const asset_manifest_builder_1 = require("./asset-manifest-builder");
const api_1 = require("../../../../@aws-cdk/tmp-toolkit-helpers/src/api");
const private_1 = require("../../../../@aws-cdk/tmp-toolkit-helpers/src/api/io/private");
const cloudformation_1 = require("../cloudformation");
/**
* Describe a changeset in CloudFormation, regardless of its current state.
*
* @param cfn a CloudFormation client
* @param stackName the name of the Stack the ChangeSet belongs to
* @param changeSetName the name of the ChangeSet
* @param fetchAll if true, fetches all pages of the change set description.
*
* @returns CloudFormation information about the ChangeSet
*/
async function describeChangeSet(cfn, stackName, changeSetName, { fetchAll }) {
const response = await cfn.describeChangeSet({
StackName: stackName,
ChangeSetName: changeSetName,
});
// If fetchAll is true, traverse all pages from the change set description.
while (fetchAll && response.NextToken != null) {
const nextPage = await cfn.describeChangeSet({
StackName: stackName,
ChangeSetName: response.ChangeSetId ?? changeSetName,
NextToken: response.NextToken,
});
// Consolidate the changes
if (nextPage.Changes != null) {
response.Changes = response.Changes != null ? response.Changes.concat(nextPage.Changes) : nextPage.Changes;
}
// Forward the new NextToken
response.NextToken = nextPage.NextToken;
}
return response;
}
/**
* Waits for a function to return non-+undefined+ before returning.
*
* @param valueProvider a function that will return a value that is not +undefined+ once the wait should be over
* @param timeout the time to wait between two calls to +valueProvider+
*
* @returns the value that was returned by +valueProvider+
*/
async function waitFor(valueProvider, timeout = 5000) {
while (true) {
const result = await valueProvider();
if (result === null) {
return undefined;
}
else if (result !== undefined) {
return result;
}
await new Promise((cb) => setTimeout(cb, timeout));
}
}
/**
* Waits for a ChangeSet to be available for triggering a StackUpdate.
*
* Will return a changeset that is either ready to be executed or has no changes.
* Will throw in other cases.
*
* @param cfn a CloudFormation client
* @param stackName the name of the Stack that the ChangeSet belongs to
* @param changeSetName the name of the ChangeSet
* @param fetchAll if true, fetches all pages of the ChangeSet before returning.
*
* @returns the CloudFormation description of the ChangeSet
*/
async function waitForChangeSet(cfn, ioHelper, stackName, changeSetName, { fetchAll }) {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Waiting for changeset %s on stack %s to finish creating...', changeSetName, stackName)));
const ret = await waitFor(async () => {
const description = await describeChangeSet(cfn, stackName, changeSetName, {
fetchAll,
});
// The following doesn't use a switch because tsc will not allow fall-through, UNLESS it is allows
// EVERYWHERE that uses this library directly or indirectly, which is undesirable.
if (description.Status === 'CREATE_PENDING' || description.Status === 'CREATE_IN_PROGRESS') {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Changeset %s on stack %s is still creating', changeSetName, stackName)));
return undefined;
}
if (description.Status === client_cloudformation_1.ChangeSetStatus.CREATE_COMPLETE || changeSetHasNoChanges(description)) {
return description;
}
// eslint-disable-next-line max-len
throw new api_1.ToolkitError(`Failed to create ChangeSet ${changeSetName} on ${stackName}: ${description.Status || 'NO_STATUS'}, ${description.StatusReason || 'no reason provided'}`);
});
if (!ret) {
throw new api_1.ToolkitError('Change set took too long to be created; aborting');
}
return ret;
}
/**
* Create a changeset for a diff operation
*/
async function createDiffChangeSet(ioHelper, options) {
// `options.stack` has been modified to include any nested stack templates directly inline with its own template, under a special `NestedTemplate` property.
// Thus the parent template's Resources section contains the nested template's CDK metadata check, which uses Fn::Equals.
// This causes CreateChangeSet to fail with `Template Error: Fn::Equals cannot be partially collapsed`.
for (const resource of Object.values(options.stack.template.Resources ?? {})) {
if (resource.Type === 'AWS::CloudFormation::Stack') {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg('This stack contains one or more nested stacks, falling back to template-only diff...'));
return undefined;
}
}
return uploadBodyParameterAndCreateChangeSet(ioHelper, options);
}
/**
* Returns all file entries from an AssetManifestArtifact that look like templates.
*
* This is used in the `uploadBodyParameterAndCreateChangeSet` function to find
* all template asset files to build and publish.
*
* Returns a tuple of [AssetManifest, FileManifestEntry[]]
*/
function templatesFromAssetManifestArtifact(artifact) {
const assets = [];
const fileName = artifact.file;
const assetManifest = cdk_assets_1.AssetManifest.fromFile(fileName);
assetManifest.entries.forEach((entry) => {
if (entry.type === 'file') {
const source = entry.source;
if (source.path && source.path.endsWith('.template.json')) {
assets.push(entry);
}
}
});
return [assetManifest, assets];
}
async function uploadBodyParameterAndCreateChangeSet(ioHelper, options) {
try {
await uploadStackTemplateAssets(options.stack, options.deployments);
const env = await options.deployments.envs.accessStackForMutableStackOperations(options.stack);
const bodyParameter = await (0, cloudformation_1.makeBodyParameter)(ioHelper, options.stack, env.resolvedEnvironment, new asset_manifest_builder_1.AssetManifestBuilder(), env.resources);
const cfn = env.sdk.cloudFormation();
const exists = (await cloudformation_1.CloudFormationStack.lookup(cfn, options.stack.stackName, false)).exists;
const executionRoleArn = await env.replacePlaceholders(options.stack.cloudFormationExecutionRoleArn);
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_INFO.msg('Hold on while we create a read-only change set to get a diff with accurate replacement information (use --no-change-set to use a less accurate but faster template-only diff)\n'));
return await createChangeSet(ioHelper, {
cfn,
changeSetName: 'cdk-diff-change-set',
stack: options.stack,
exists,
uuid: options.uuid,
willExecute: options.willExecute,
bodyParameter,
parameters: options.parameters,
resourcesToImport: options.resourcesToImport,
role: executionRoleArn,
});
}
catch (e) {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg(String(e)));
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_INFO.msg('Could not create a change set, will base the diff on template differences (run again with -v to see the reason)\n'));
return undefined;
}
}
/**
* Uploads the assets that look like templates for this CloudFormation stack
*
* This is necessary for any CloudFormation call that needs the template, it may need
* to be uploaded to an S3 bucket first. We have to follow the instructions in the
* asset manifest, because technically that is the only place that knows about
* bucket and assumed roles and such.
*/
async function uploadStackTemplateAssets(stack, deployments) {
for (const artifact of stack.dependencies) {
// Skip artifact if it is not an Asset Manifest Artifact
if (!cxapi.AssetManifestArtifact.isAssetManifestArtifact(artifact)) {
continue;
}
const [assetManifest, file_entries] = templatesFromAssetManifestArtifact(artifact);
for (const entry of file_entries) {
await deployments.buildSingleAsset(artifact, assetManifest, entry, {
stack,
});
await deployments.publishSingleAsset(assetManifest, entry, {
stack,
});
}
}
}
async function createChangeSet(ioHelper, options) {
await cleanupOldChangeset(options.cfn, ioHelper, options.changeSetName, options.stack.stackName);
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg(`Attempting to create ChangeSet with name ${options.changeSetName} for stack ${options.stack.stackName}`));
const templateParams = TemplateParameters.fromTemplate(options.stack.template);
const stackParams = templateParams.supplyAll(options.parameters);
const changeSet = await options.cfn.createChangeSet({
StackName: options.stack.stackName,
ChangeSetName: options.changeSetName,
ChangeSetType: options.resourcesToImport ? 'IMPORT' : options.exists ? 'UPDATE' : 'CREATE',
Description: `CDK Changeset for diff ${options.uuid}`,
ClientToken: `diff${options.uuid}`,
TemplateURL: options.bodyParameter.TemplateURL,
TemplateBody: options.bodyParameter.TemplateBody,
Parameters: stackParams.apiParameters,
ResourcesToImport: options.resourcesToImport,
RoleARN: options.role,
Tags: toCfnTags(options.stack.tags),
Capabilities: ['CAPABILITY_IAM', 'CAPABILITY_NAMED_IAM', 'CAPABILITY_AUTO_EXPAND'],
});
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Initiated creation of changeset: %s; waiting for it to finish creating...', changeSet.Id)));
// Fetching all pages if we'll execute, so we can have the correct change count when monitoring.
const createdChangeSet = await waitForChangeSet(options.cfn, ioHelper, options.stack.stackName, options.changeSetName, {
fetchAll: options.willExecute,
});
await cleanupOldChangeset(options.cfn, ioHelper, options.changeSetName, options.stack.stackName);
return createdChangeSet;
}
function toCfnTags(tags) {
return Object.entries(tags).map(([k, v]) => ({
Key: k,
Value: v,
}));
}
async function cleanupOldChangeset(cfn, ioHelper, changeSetName, stackName) {
// Delete any existing change sets generated by CDK since change set names must be unique.
// The delete request is successful as long as the stack exists (even if the change set does not exist).
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg(`Removing existing change set with name ${changeSetName} if it exists`));
await cfn.deleteChangeSet({
StackName: stackName,
ChangeSetName: changeSetName,
});
}
/**
* Return true if the given change set has no changes
*
* This must be determined from the status, not the 'Changes' array on the
* object; the latter can be empty because no resources were changed, but if
* there are changes to Outputs, the change set can still be executed.
*/
function changeSetHasNoChanges(description) {
const noChangeErrorPrefixes = [
// Error message for a regular template
"The submitted information didn't contain changes.",
// Error message when a Transform is involved (see #10650)
'No updates are to be performed.',
];
return (description.Status === 'FAILED' && noChangeErrorPrefixes.some((p) => (description.StatusReason ?? '').startsWith(p)));
}
/**
* Waits for a CloudFormation stack to stabilize in a complete/available state
* after a delete operation is issued.
*
* Fails if the stack is in a FAILED state. Will not fail if the stack was
* already deleted.
*
* @param cfn a CloudFormation client
* @param stackName the name of the stack to wait for after a delete
*
* @returns the CloudFormation description of the stabilized stack after the delete attempt
*/
async function waitForStackDelete(cfn, ioHelper, stackName) {
const stack = await stabilizeStack(cfn, ioHelper, stackName);
if (!stack) {
return undefined;
}
const status = stack.stackStatus;
if (status.isFailure) {
throw new api_1.ToolkitError(`The stack named ${stackName} is in a failed state. You may need to delete it from the AWS console : ${status}`);
}
else if (status.isDeleted) {
return undefined;
}
return stack;
}
/**
* Waits for a CloudFormation stack to stabilize in a complete/available state
* after an update/create operation is issued.
*
* Fails if the stack is in a FAILED state, ROLLBACK state, or DELETED state.
*
* @param cfn a CloudFormation client
* @param stackName the name of the stack to wait for after an update
*
* @returns the CloudFormation description of the stabilized stack after the update attempt
*/
async function waitForStackDeploy(cfn, ioHelper, stackName) {
const stack = await stabilizeStack(cfn, ioHelper, stackName);
if (!stack) {
return undefined;
}
const status = stack.stackStatus;
if (status.isCreationFailure) {
throw new api_1.ToolkitError(`The stack named ${stackName} failed creation, it may need to be manually deleted from the AWS console: ${status}`);
}
else if (!status.isDeploySuccess) {
throw new api_1.ToolkitError(`The stack named ${stackName} failed to deploy: ${status}`);
}
return stack;
}
/**
* Wait for a stack to become stable (no longer _IN_PROGRESS), returning it
*/
async function stabilizeStack(cfn, ioHelper, stackName) {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Waiting for stack %s to finish creating or updating...', stackName)));
return waitFor(async () => {
const stack = await cloudformation_1.CloudFormationStack.lookup(cfn, stackName);
if (!stack.exists) {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Stack %s does not exist', stackName)));
return null;
}
const status = stack.stackStatus;
if (status.isInProgress) {
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Stack %s has an ongoing operation in progress and is not stable (%s)', stackName, status)));
return undefined;
}
else if (status.isReviewInProgress) {
// This may happen if a stack creation operation is interrupted before the ChangeSet execution starts. Recovering
// from this would requiring manual intervention (deleting or executing the pending ChangeSet), and failing to do
// so will result in an endless wait here (the ChangeSet wont delete or execute itself). Instead of blocking
// "forever" we proceed as if the stack was existing and stable. If there is a concurrent operation that just
// hasn't finished proceeding just yet, either this operation or the concurrent one may fail due to the other one
// having made progress. Which is fine. I guess.
await ioHelper.notify(private_1.IO.DEFAULT_TOOLKIT_DEBUG.msg((0, util_1.format)('Stack %s is in REVIEW_IN_PROGRESS state. Considering this is a stable status (%s)', stackName, status)));
}
return stack;
});
}
/**
* The set of (formal) parameters that have been declared in a template
*/
class TemplateParameters {
static fromTemplate(template) {
return new TemplateParameters(template.Parameters || {});
}
constructor(params) {
this.params = params;
}
/**
* Calculate stack parameters to pass from the given desired parameter values
*
* Will throw if parameters without a Default value or a Previous value are not
* supplied.
*/
supplyAll(updates) {
return new ParameterValues(this.params, updates);
}
/**
* From the template, the given desired values and the current values, calculate the changes to the stack parameters
*
* Will take into account parameters already set on the template (will emit
* 'UsePreviousValue: true' for those unless the value is changed), and will
* throw if parameters without a Default value or a Previous value are not
* supplied.
*/
updateExisting(updates, previousValues) {
return new ParameterValues(this.params, updates, previousValues);
}
}
exports.TemplateParameters = TemplateParameters;
/**
* The set of parameters we're going to pass to a Stack
*/
class ParameterValues {
constructor(formalParams, updates, previousValues = {}) {
this.formalParams = formalParams;
this.values = {};
this.apiParameters = [];
const missingRequired = new Array();
for (const [key, formalParam] of Object.entries(this.formalParams)) {
// Check updates first, then use the previous value (if available), then use
// the default (if available).
//
// If we don't find a parameter value using any of these methods, then that's an error.
const updatedValue = updates[key];
if (updatedValue !== undefined) {
this.values[key] = updatedValue;
this.apiParameters.push({
ParameterKey: key,
ParameterValue: updates[key],
});
continue;
}
if (key in previousValues) {
this.values[key] = previousValues[key];
this.apiParameters.push({ ParameterKey: key, UsePreviousValue: true });
continue;
}
if (formalParam.Default !== undefined) {
this.values[key] = formalParam.Default;
continue;
}
// Oh no
missingRequired.push(key);
}
if (missingRequired.length > 0) {
throw new api_1.ToolkitError(`The following CloudFormation Parameters are missing a value: ${missingRequired.join(', ')}`);
}
// Just append all supplied overrides that aren't really expected (this
// will fail CFN but maybe people made typos that they want to be notified
// of)
const unknownParam = ([key, _]) => this.formalParams[key] === undefined;
const hasValue = ([_, value]) => !!value;
for (const [key, value] of Object.entries(updates).filter(unknownParam).filter(hasValue)) {
this.values[key] = value;
this.apiParameters.push({ ParameterKey: key, ParameterValue: value });
}
}
/**
* Whether this set of parameter updates will change the actual stack values
*/
hasChanges(currentValues) {
// If any of the parameters are SSM parameters, deploying must always happen
// because we can't predict what the values will be. We will allow some
// parameters to opt out of this check by having a magic string in their description.
if (Object.values(this.formalParams).some((p) => p.Type.startsWith('AWS::SSM::Parameter::') && !p.Description?.includes(cx_api_1.SSMPARAM_NO_INVALIDATE))) {
return 'ssm';
}
// Otherwise we're dirty if:
// - any of the existing values are removed, or changed
if (Object.entries(currentValues).some(([key, value]) => !(key in this.values) || value !== this.values[key])) {
return true;
}
// - any of the values we're setting are new
if (Object.keys(this.values).some((key) => !(key in currentValues))) {
return true;
}
return false;
}
}
exports.ParameterValues = ParameterValues;
//# 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ResourcesToImport } from '../resource-import';\n\n/**\n * Describe a changeset in CloudFormation, regardless of its current state.\n *\n * @param cfn           a CloudFormation client\n * @param stackName     the name of the Stack the ChangeSet belongs to\n * @param changeSetName the name of the ChangeSet\n * @param fetchAll      if true, fetches all pages of the change set description.\n *\n * @returns       CloudFormation information about the ChangeSet\n */\nasync function describeChangeSet(\n  cfn: ICloudFormationClient,\n  stackName: string,\n  changeSetName: string,\n  { fetchAll }: { fetchAll: boolean },\n): Promise<DescribeChangeSetCommandOutput> {\n  const response = await cfn.describeChangeSet({\n    StackName: stackName,\n    ChangeSetName: changeSetName,\n  });\n\n  // If fetchAll is true, traverse all pages from the change set description.\n  while (fetchAll && response.NextToken != null) {\n    const nextPage = await cfn.describeChangeSet({\n      StackName: stackName,\n      ChangeSetName: response.ChangeSetId ?? changeSetName,\n      NextToken: response.NextToken,\n    });\n\n    // Consolidate the changes\n    if (nextPage.Changes != null) {\n      response.Changes = response.Changes != null ? response.Changes.concat(nextPage.Changes) : nextPage.Changes;\n    }\n\n    // Forward the new NextToken\n    response.NextToken = nextPage.NextToken;\n  }\n\n  return response;\n}\n\n/**\n * Waits for a function to return non-+undefined+ before returning.\n *\n * @param valueProvider a function that will return a value that is not +undefined+ once the wait should be over\n * @param timeout     the time to wait between two calls to +valueProvider+\n *\n * @returns       the value that was returned by +valueProvider+\n */\nasync function waitFor<T>(\n  valueProvider: () => Promise<T | null | undefined>,\n  timeout: number = 5000,\n): Promise<T | undefined> {\n  while (true) {\n    const result = await valueProvider();\n    if (result === null) {\n      return undefined;\n    } else if (result !== undefined) {\n      return result;\n    }\n    await new Promise((cb) => setTimeout(cb, timeout));\n  }\n}\n\n/**\n * Waits for a ChangeSet to be available for triggering a StackUpdate.\n *\n * Will return a changeset that is either ready to be executed or has no changes.\n * Will throw in other cases.\n *\n * @param cfn           a CloudFormation client\n * @param stackName     the name of the Stack that the ChangeSet belongs to\n * @param changeSetName the name of the ChangeSet\n * @param fetchAll      if true, fetches all pages of the ChangeSet before returning.\n *\n * @returns       the CloudFormation description of the ChangeSet\n */\nexport async function waitForChangeSet(\n  cfn: ICloudFormationClient,\n  ioHelper: IoHelper,\n  stackName: string,\n  changeSetName: string,\n  { fetchAll }: { fetchAll: boolean },\n): Promise<DescribeChangeSetCommandOutput> {\n  await ioHelper.notify(IO.DEFAULT_TOOLKIT_DEBUG.msg(format('Waiting for changeset %s on stack %s to finish creating...', changeSetName, stackName)));\n  const ret = await waitFor(async () => {\n    const description = await describeChangeSet(cfn, stackName, changeSetName, {\n      fetchAll,\n    });\n    // The following doesn't use a switch because tsc will not allow fall-through, UNLESS it is allows\n    // EVERYWHERE that uses this library directly or indirectly, which is undesirable.\n    if (description.Status === 'CREATE_PENDING' || description.Status === 'CREATE_IN_PROGRESS') {\n      await ioHelper.notify(IO.DEFAULT_TOOLKIT_DEBUG.msg(format('Changeset %s on stack %s is still creating', changeSetName, stackName)));\n      return undefined;\n    }\n\n    if (description.Status === ChangeSetStatus.CREATE_COMPLETE || changeSetHasNoChanges(description)) {\n      return description;\n    }\n\n    // eslint-disable-next-line max-len\n    throw new ToolkitError(\n      `Failed to create ChangeSet ${changeSetName} on ${stackName}: ${description.Status || 'NO_STATUS'}, ${description.StatusReason || 'no reason provided'}`,\n    );\n  });\n\n  if (!ret) {\n    throw new ToolkitError('Change set took too long to be created; aborting');\n  }\n\n  return ret;\n}\n\nexport type PrepareChangeSetOptions = {\n  stack: cxapi.CloudFormationStackArtifact;\n  deployments: Deployments;\n  uuid: string;\n  willExecute: boolean;\n  sdkProvider: SdkProvider;\n  parameters: { [name: string]: string | undefined };\n  resourcesToImport?: ResourcesToImport;\n}\n\nexport type CreateChangeSetOptions = {\n  cfn: ICloudFormationClient;\n  changeSetName: string;\n  willExecute: boolean;\n  exists: boolean;\n  uuid: string;\n  stack: cxapi.CloudFormationStackArtifact;\n  bodyParameter: TemplateBodyParameter;\n  parameters: { [name: string]: string | undefined };\n  resourcesToImport?: ResourceToImport[];\n  role?: string;\n};\n\n/**\n * Create a changeset for a diff operation\n */\nexport async function createDiffChangeSet(\n  ioHelper: IoHelper,\n  options: PrepareChangeSetOptions,\n): Promise<DescribeChangeSetCommandOutput | undefined> {\n  // `options.stack` has been modified to include any nested stack templates directly inline with its own template, under a special `NestedTemplate` property.\n  // Thus the parent template's Resources section contains the nested template's CDK metadata check, which uses Fn::Equals.\n  // This causes CreateChangeSet to fail with `Template Error: Fn::Equals cannot be partially collapsed`.\n  for (const resource of Object.values(options.stack.template.Resources ?? {})) {\n    if ((resource as any).Type === 'AWS::CloudFormation::Stack') {\n      await ioHelper.notify(IO.DEFAULT_TOOLKIT_DEBUG.msg('This stack contains one or more nested stacks, falling back to template-only diff...'));\n\n      return undefined;\n    }\n  }\n\n  return uploadBodyParameterAndCreateChangeSet(ioHelper, options);\n}\n\n/**\n * Returns all file entries from an AssetManifestArtifact that look like templates.\n *\n * This is used in the `uploadBodyParameterAndCreateChangeSet` function to find\n * all template asset files to build and publish.\n *\n * Returns a tuple of [AssetManifest, FileManifestEntry[]]\n */\nfunction templatesFromAssetManifestArtifact(\n  artifact: cxapi.AssetManifestArtifact,\n): [AssetManifest, FileManifestEntry[]] {\n  const assets: FileManifestEntry[] = [];\n  const fileName = artifact.file;\n  const assetManifest = AssetManifest.fromFile(fileName);\n\n  assetManifest.entries.forEach((entry) => {\n    if (entry.type === 'file') {\n      const source = (entry as FileManifestEntry).source;\n      if (source.path && source.path.endsWith('.template.json')) {\n        assets.push(entry as FileManifestEntry);\n      }\n    }\n  });\n  return [assetManifest, assets];\n}\n\nasync function uploadBodyParameterAndCreateChangeSet(\n  ioHelper: IoHelper,\n  options: PrepareChangeSetOptions,\n): Promise<DescribeChangeSetCommandOutput | undefined> {\n  try {\n    await uploadStackTemplateAssets(options.stack, options.deployments);\n    const env = await options.deployments.envs.accessStackForMutableStackOperations(options.stack);\n\n    const bodyParameter = await makeBodyParameter(\n      ioHelper,\n      options.stack,\n      env.resolvedEnvironment,\n      new AssetManifestBuilder(),\n      env.resources,\n    );\n    const cfn = env.sdk.cloudFormation();\n    const exists = (await CloudFormationStack.lookup(cfn, options.stack.stackName, false)).exists;\n\n    const executionRoleArn = await env.replacePlaceholders(options.stack.cloudFormationExecutionRoleArn);\n    await ioHelper.notify(IO.DEFAULT_TOOLKIT_INFO.msg(\n      'Hold on while we create a read-only change set to get a diff with accurate replacement information (use --no-change-set to use a less accurate but faster template-only diff)\\n',\n    ));\n\n    return await createChangeSet(ioHelper, {\n      cfn,\n      changeSetName: 'cdk-diff-change-set',\n      stack: options.stack,\n      exists,\n      uuid: options.uuid,\n      willExecute: options.willExecute,\n      bodyParameter,\n      parameters: options.parameters,\n      resourcesToImport: options.resourcesToImport,\n      role: executionRoleArn,\n    });\n  } catch (e: any) {\n    await ioHelper.notify(IO.DEFAULT_TOOLKIT_DEBUG.msg(String(e)));\n    await ioHelper.notify(IO.DEFAU