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fix(appconfig-alpha): extensions always create cdk diff #28264

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merged 6 commits into from
Dec 9, 2023
Merged

fix(appconfig-alpha): extensions always create cdk diff #28264

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d76c810
fix(appconfig): extensions always create cdk diff
chenjane-dev Dec 5, 2023
17bd49b
Merge branch 'main' into extension-hash
chenjane-dev Dec 5, 2023
951dc06
small refactors
chenjane-dev Dec 7, 2023
38da0b0
small refactors
chenjane-dev Dec 7, 2023
95cc43b
Merge branch 'main' into extension-hash
vinayak-kukreja Dec 8, 2023
053b667
Merge branch 'main' into extension-hash
vinayak-kukreja Dec 9, 2023
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2 changes: 1 addition & 1 deletion packages/@aws-cdk/aws-appconfig-alpha/lib/application.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -352,7 +352,7 @@ export class Application extends ApplicationBase {
resourceName: this.applicationId,
});

this.extensible = new ExtensibleBase(scope, this.applicationArn, this.name);
this.extensible = new ExtensibleBase(this, this.applicationArn, this.name);
}
}

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4 changes: 2 additions & 2 deletions packages/@aws-cdk/aws-appconfig-alpha/lib/configuration.ts
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Expand Up @@ -446,7 +446,7 @@ export class HostedConfiguration extends ConfigurationBase {
resource: 'application',
resourceName: `${this.applicationId}/configurationprofile/${this.configurationProfileId}`,
});
this.extensible = new ExtensibleBase(scope, this.configurationProfileArn, this.name);
this.extensible = new ExtensibleBase(this, this.configurationProfileArn, this.name);

this.content = props.content.content;
this.contentType = props.content.contentType;
Expand Down Expand Up @@ -608,7 +608,7 @@ export class SourcedConfiguration extends ConfigurationBase {
resource: 'application',
resourceName: `${this.applicationId}/configurationprofile/${this.configurationProfileId}`,
});
this.extensible = new ExtensibleBase(scope, this.configurationProfileArn, this.name);
this.extensible = new ExtensibleBase(this, this.configurationProfileArn, this.name);

this.addExistingEnvironmentsToApplication();
this.deployConfigToEnvironments();
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2 changes: 1 addition & 1 deletion packages/@aws-cdk/aws-appconfig-alpha/lib/environment.ts
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Expand Up @@ -269,7 +269,7 @@ export class Environment extends EnvironmentBase {
resource: 'application',
resourceName: `${this.applicationId}/environment/${this.environmentId}`,
});
this.extensible = new ExtensibleBase(scope, this.environmentArn, this.name);
this.extensible = new ExtensibleBase(this, this.environmentArn, this.name);

this.application.addExistingEnvironment(this);
}
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49 changes: 33 additions & 16 deletions packages/@aws-cdk/aws-appconfig-alpha/lib/extension.ts
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Expand Up @@ -75,6 +75,12 @@ export class LambdaDestination implements IEventDestination {
this.policyDocument = new iam.PolicyDocument({
statements: [policy],
});

if (!func.permissionsNode.tryFindChild('AppConfigPermission')) {
func.addPermission('AppConfigPermission', {
principal: new iam.ServicePrincipal('appconfig.amazonaws.com'),
});
}
}
}

Expand Down Expand Up @@ -500,21 +506,19 @@ export class Extension extends Resource implements IExtension {
this.parameters = props.parameters;

const resource = new CfnExtension(this, 'Resource', {
actions: this.actions.reduce((acc: {[key: string]: {[key: string]: string}[]}, cur: Action) => {
actions: this.actions.reduce((acc: {[key: string]: {[key: string]: string}[]}, cur: Action, index: number) => {
const extensionUri = cur.eventDestination.extensionUri;
const sourceType = cur.eventDestination.type;
this.executionRole = cur.executionRole;
const name = cur.name ?? `${this.name}-${index}`;
cur.actionPoints.forEach((actionPoint) => {
acc[actionPoint] = [
{
Name: cur.name || Names.uniqueResourceName(this, {
maxLength: 64,
separator: '-',
}),
Name: name,
Uri: extensionUri,
...(sourceType === SourceType.EVENTS || cur.invokeWithoutExecutionRole
? {}
: { RoleArn: this.executionRole?.roleArn || this.getExecutionRole(cur.eventDestination).roleArn }),
: { RoleArn: this.executionRole?.roleArn || this.getExecutionRole(cur.eventDestination, name).roleArn }),
...(cur.description ? { Description: cur.description } : {}),
},
];
Expand Down Expand Up @@ -543,8 +547,10 @@ export class Extension extends Resource implements IExtension {
});
}

private getExecutionRole(eventDestination: IEventDestination): iam.IRole {
this.executionRole = new iam.Role(this, `Role${getHash(eventDestination.extensionUri)}`, {
private getExecutionRole(eventDestination: IEventDestination, actionName: string): iam.IRole {
const versionNumber = this.latestVersionNumber ? this.latestVersionNumber + 1 : 1;
const combinedObjects = stringifyObjects(this.name, versionNumber, actionName);
this.executionRole = new iam.Role(this, `Role${getHash(combinedObjects)}`, {
roleName: PhysicalName.GENERATE_IF_NEEDED,
assumedBy: new iam.ServicePrincipal('appconfig.amazonaws.com'),
inlinePolicies: {
Expand Down Expand Up @@ -658,7 +664,9 @@ export class ExtensibleBase implements IExtensible {
}

private getExtensionForActionPoint(eventDestination: IEventDestination, actionPoint: ActionPoint, options?: ExtensionOptions) {
const extension = new Extension(this.scope, `Extension${this.getExtensionHash(eventDestination, actionPoint, options)}`, {
const name = options?.name || this.getExtensionDefaultName();
const versionNumber = options?.latestVersionNumber ? options?.latestVersionNumber + 1 : 1;
const extension = new Extension(this.scope, `Extension${this.getExtensionHash(name, versionNumber)}`, {
actions: [
new Action({
eventDestination,
Expand All @@ -667,16 +675,18 @@ export class ExtensibleBase implements IExtensible {
],
}),
],
name,
...(options?.description ? { description: options.description } : {}),
...(options?.latestVersionNumber ? { latestVersionNumber: options.latestVersionNumber } : {}),
...(options?.name ? { name: options.name } : {}),
...(options?.parameters ? { parameters: options.parameters } : {}),
});
this.addExtensionAssociation(extension, options);
}

private addExtensionAssociation(extension: IExtension, options?: ExtensionOptions) {
new CfnExtensionAssociation(this.scope, `AssociationResource${this.getExtensionAssociationHash(extension)}`, {
const versionNumber = options?.latestVersionNumber ? options?.latestVersionNumber + 1 : 1;
const name = extension.name ?? this.getExtensionDefaultName();
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Suggested change
const name = extension.name ?? this.getExtensionDefaultName();
const name = extension.name ?? options?.name ?? this.getExtensionDefaultName();

name can be passed via options as well.
I think that getExtensionDefaultName should be used here as well for consistency.

To avoid this default to chaining after initialization we could think about making this and this required and use getExtensionDefaultName for imported extensions.
This may be a better approach, not sure how much refactoring it would require.

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We actually don't need the options parameter here, I just got rid of it.

For the second point, the scope in these two places are different. In the link you attached, the user would pass in the logical id which might be something like MyExtension so here adding the -Extension there would be redundant. Here the scope is the parent so adding the -Extension prevents it from being named the same as the parent. For requiring the name as a parameter, this goes against the CDK guidelines as we want to try to take as much of the work off the user. This was additionally a customer pain point when working with the L1 constructs.

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Ok clear, thanks for the follow-up and the parameter cleanup 👍

new CfnExtensionAssociation(this.scope, `AssociationResource${this.getExtensionAssociationHash(name, versionNumber)}`, {
extensionIdentifier: extension.extensionId,
resourceIdentifier: this.resourceArn,
extensionVersionNumber: extension.extensionVersionNumber,
Expand All @@ -689,16 +699,23 @@ export class ExtensibleBase implements IExtensible {
});
}

private getExtensionHash(eventDestination: IEventDestination, actionPoint: ActionPoint, options?: ExtensionOptions) {
const combinedString = stringifyObjects(eventDestination, actionPoint, options);
private getExtensionHash(name: string, versionNumber: number) {
const combinedString = stringifyObjects(name, versionNumber);
return getHash(combinedString);
}

private getExtensionAssociationHash(extension: IExtension) {
const resourceIdentifier = this.resourceName ? this.resourceName : this.resourceArn;
const combinedString = stringifyObjects(resourceIdentifier, extension.name, extension.extensionVersionNumber);
private getExtensionAssociationHash(name: string, versionNumber: number) {
const resourceIdentifier = this.resourceName ?? this.resourceArn;
const combinedString = stringifyObjects(resourceIdentifier, name, versionNumber);
return getHash(combinedString);
}

private getExtensionDefaultName() {
return Names.uniqueResourceName(this.scope, {
maxLength: 54,
separator: '-',
}) + '-Extension';
}
}

/**
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