wip

Co-authored-by: Akash <akash1810@users.noreply.github.com>

Author: JuliaBrigitte

cdk/bin/cdk.ts

@@ -1,6 +1,6 @@
 import 'source-map-support/register';
-import type { GuStackProps } from '@guardian/cdk/lib/constructs/core';
 import { App } from 'aws-cdk-lib';
+import type { RegistrationProps } from '../lib/registration';
 import { Registration } from '../lib/registration';
 import { RegistrationsDbProxy } from '../lib/registrations-db-proxy';
 import { Report, type ReportProps } from '../lib/report';
@@ -9,14 +9,22 @@ import { SloMonitoring } from '../lib/slo-monitoring';
 
 const app = new App();
 
-export const registrationCodeProps: GuStackProps = {
+export const registrationCodeProps: RegistrationProps = {
+	instanceMetricGranularity: '5Minute',
+	maxAsgSize: 2,
+	minAsgSize: 1,
 	stack: 'mobile-notifications',
 	stage: 'CODE',
+	env: { region: 'eu-west-1' },
 };
 
-export const registrationProdProps: GuStackProps = {
+export const registrationProdProps: RegistrationProps = {
+	instanceMetricGranularity: '1Minute',
+	maxAsgSize: 12,
+	minAsgSize: 3,
 	stack: 'mobile-notifications',
 	stage: 'PROD',
+	env: { region: 'eu-west-1' },
 };
 
 new Registration(app, 'Registration-CODE', registrationCodeProps);

cdk/lib/registration.ts

@@ -1,11 +1,21 @@
-import { join } from 'path';
-import type { GuStackProps } from '@guardian/cdk/lib/constructs/core';
-import { GuStack } from '@guardian/cdk/lib/constructs/core';
-import type { App } from 'aws-cdk-lib';
-import { CfnInclude } from 'aws-cdk-lib/cloudformation-include';
+import {join} from 'path';
+import type {GuStackProps} from '@guardian/cdk/lib/constructs/core';
+import {GuStack} from '@guardian/cdk/lib/constructs/core';
+import type {App} from 'aws-cdk-lib';
+import {CfnInclude} from 'aws-cdk-lib/cloudformation-include';
+import {GuEc2App} from "@guardian/cdk";
+import {InstanceClass, InstanceSize, InstanceType} from "aws-cdk-lib/aws-ec2";
+import {AccessScope} from "@guardian/cdk/lib/constants";
+import {HttpCodeTarget} from "aws-cdk-lib/aws-elasticloadbalancingv2";
+
+export interface RegistrationProps extends GuStackProps {
+  instanceMetricGranularity: '1Minute' | '5Minute';
+  minAsgSize: number;
+  maxAsgSize: number;
+}
 
 export class Registration extends GuStack {
-	constructor(scope: App, id: string, props: GuStackProps) {
+	constructor(scope: App, id: string, props: RegistrationProps) {
 		super(scope, id, props);
 		const yamlTemplateFilePath = join(
 			__dirname,
@@ -17,5 +27,42 @@ export class Registration extends GuStack {
 		new CfnInclude(this, 'YamlTemplate', {
 			templateFile: yamlTemplateFilePath,
 		});
+
+    const app="registration";
+
+    const {instanceMetricGranularity, minAsgSize, maxAsgSize} = props;
+
+    const ec2App = new GuEc2App(this, {
+      access: {
+        scope: AccessScope.PUBLIC,
+      },
+      app: app,
+      applicationPort: 9000,
+      instanceMetricGranularity: instanceMetricGranularity,
+      instanceType: InstanceType.of(InstanceClass.T4G, InstanceSize.SMALL),
+      // This matches the YAML stack (i.e. there is no 5XX alarm).
+      monitoringConfiguration: { noMonitoring: true },
+      scaling: { minimumInstances: minAsgSize, maximumInstances: maxAsgSize },
+      userData: {
+        distributable: {
+          fileName: `${app}_1.0-latest_all.deb`,
+          executionStatement: `dpkg -i /report/${app}_1.0-latest_all.deb`,
+        },
+      }
+    });
+
+    ec2App.autoScalingGroup.scaleOnCpuUtilization("CpuScalingPolicy", {
+      targetUtilizationPercent: 20,
+    });
+
+    const alarm2xxMetric = ec2App.loadBalancer.metrics.httpCodeTarget(
+      HttpCodeTarget.TARGET_2XX_COUNT)
+
+    alarm2xxMetric.createAlarm(this, '2XXAlarm-per-hour', {
+      evaluationPeriods: 12,
+      threshold: 1000,
+      })
+
+
 	}
 }