ParisaTork

import { Duration } from "aws-cdk-lib";    

  if (stage.valueAsString === 'CODE') {
      new GuAlarm(this, 'LatencyScalingAlarm', {
        app,
        metricName: 'Latency',
        namespace: 'AWS/ELB',
        dimensions: {
          LoadBalancerName: lb.loadBalancerName,
        },

ParisaTork

import { GuAlarm, GuStack } from '@guardian/cdk';
import { Metric, ComparisonOperator } from '@aws-cdk/aws-cloudwatch';

const Backend5XXAlarmThreshold = 100;
const Backend5XXAlarmPeriod = 1;
const Backend5XXConsecutivePeriod = 5;

const criticalAlertsTopic = sns.Topic.fromTopicArn(this, 'CriticalAlertsTopic', 'arn:aws:sns:<region>:<account-id>:Frontend-PROD-CriticalAlerts'); // modify to CODE in the meantime? I don't think we have one for CODE, so we may need to set this up

const alarm = new GuAlarm(stack, 'Backend5xxAlarm', {

ParisaTork

import { GuClassicLoadBalancer } from '@guardian/cdk';

const lb = new GuClassicLoadBalancer(stack, 'InternalLoadBalancer', {
  app: 'rendering',
  stack: 'frontend',
  stage: 'CODE',
  vpc: stack.vpc,
  scheme: elb.LoadBalancerScheme.INTERNAL,
  loadBalancerName: `${stack}-${stage}-${app}-ELB`,
  listeners: [{

ParisaTork

// Docs: https://docs.aws.amazon.com/cdk/api/v2/docs/aws-cdk-lib.aws_iam.InstanceProfile.html
// Sample: https://github.com/aws/aws-cdk/blob/03c6f6fb667a1d7034537b514103215bb949a8da/packages/aws-cdk-lib/aws-ec2/README.md?plain=1#L1870

// add to ts cdk file
import { InstanceProfile } from 'aws-cdk-lib/aws-iam';

const instanceProfile = new InstanceProfile(this, 'InstanceProfile', {
    role: instanceRole
});