Amazon CloudWatch

import * as aws from "@pulumi/aws";
import * as cloudwatch from "@pulumi/aws/cloudwatch";

const alarm = new aws.cloudwatch.MetricAlarm("high-cpu", {
    name: "high-cpu-alarm",
    comparisonOperator: "GreaterThanThreshold",
    evaluationPeriods: 2,
    metricName: "CPUUtilization",
    namespace: "AWS/EC2",
    period: 300,
    statistic: "Average",
    threshold: 80,
    alarmDescription: "Triggers when CPU exceeds 80%",
    dimensions: {
        InstanceId: instance.id,
    },
    alarmActions: [snsTopic.arn],
});

const logGroup = new aws.cloudwatch.LogGroup("app-logs", {
    name: "/aws/lambda/my-function",
    retentionInDays: 30,
    tags: {
        Application: "my-app",
    },
});

const logStream = new aws.cloudwatch.LogStream("app-stream", {
    name: "instance-logs",
    logGroupName: logGroup.name,
});

const dashboard = new aws.cloudwatch.Dashboard("app-dashboard", {
    dashboardName: "my-app-dashboard",
    dashboardBody: JSON.stringify({
        widgets: [{
            type: "metric",
            properties: {
                metrics: [
                    ["AWS/EC2", "CPUUtilization", { stat: "Average" }],
                ],
                period: 300,
                stat: "Average",
                region: "us-west-2",
                title: "EC2 CPU Utilization",
            },
        }],
    }),
});

const compositeAlarm = new aws.cloudwatch.CompositeAlarm("composite", {
    alarmName: "composite-alarm",
    alarmRule: `ALARM(${alarm1.arn}) AND ALARM(${alarm2.arn})`,
    alarmDescription: "Composite alarm for multiple conditions",
    alarmActions: [snsTopic.arn],
});

const metricAlarm = new aws.cloudwatch.MetricAlarm("custom-metric", {
    name: "custom-metric-alarm",
    comparisonOperator: "GreaterThanThreshold",
    evaluationPeriods: 1,
    metricName: "CustomMetric",
    namespace: "MyApp/Custom",
    period: 60,
    statistic: "Sum",
    threshold: 100,
    dimensions: {
        Environment: "production",
    },
});

const metricFilter = new aws.cloudwatch.LogMetricFilter("error-filter", {
    name: "error-count",
    logGroupName: logGroup.name,
    pattern: "[timestamp, request_id, event_type = ERROR*, ...]",
    metricTransformation: {
        name: "ErrorCount",
        namespace: "MyApp/Logs",
        value: "1",
    },
});