Resolución de Errores en la Nube

// Java example of using AWS SDK to fetch Lambda logs from CloudWatch
import com.amazonaws.services.logs.AWSLogs;
import com.amazonaws.services.logs.AWSLogsClientBuilder;
import com.amazonaws.services.logs.model.FilterLogEventsRequest;
import com.amazonaws.services.logs.model.FilterLogEventsResult;

public class LambdaLogsFetcher {
    public static void main(String[] args) {
        AWSLogs logsClient = AWSLogsClientBuilder.defaultClient();
        FilterLogEventsRequest request = new FilterLogEventsRequest()
            .withLogGroupName("/aws/lambda/my-function")
            .withFilterPattern("ERROR");
        FilterLogEventsResult result = logsClient.filterLogEvents(request);
        result.getEvents().forEach(event -> System.out.println(event.getMessage()));
    }
}

# Python example of fetching Lambda logs from CloudWatch
import boto3

logs_client = boto3.client('logs')
response = logs_client.filter_log_events(
    logGroupName='/aws/lambda/my-function',
    filterPattern='ERROR'
)
for event in response['events']:
    print(event['message'])

// C# example of fetching Lambda logs from CloudWatch
using Amazon.CloudWatchLogs;
using Amazon.CloudWatchLogs.Model;
using System;
using System.Threading.Tasks;

public class LambdaLogsFetcher
{
    public static async Task Main(string[] args)
    {
        var client = new AmazonCloudWatchLogsClient();
        var request = new FilterLogEventsRequest
        {
            LogGroupName = "/aws/lambda/my-function",
            FilterPattern = "ERROR"
        };
        var response = await client.FilterLogEventsAsync(request);
        foreach (var logEvent in response.Events)
        {
            Console.WriteLine(logEvent.Message);
        }
    }
}

// TypeScript example of fetching Lambda logs from CloudWatch
import * as AWS from 'aws-sdk';

const logs = new AWS.CloudWatchLogs();
const params = {
    logGroupName: '/aws/lambda/my-function',
    filterPattern: 'ERROR'
};

logs.filterLogEvents(params, (err, data) => {
    if (err) console.error(err);
    else data.events.forEach(event => console.log(event.message));
});

// Java example of configuring Application Insights SDK
import com.microsoft.applicationinsights.TelemetryClient;

public class AppInsightsConfig {
    public static void main(String[] args) {
        TelemetryClient telemetry = new TelemetryClient();
        telemetry.trackEvent("Application started");
    }
}

# Python example of configuring Application Insights SDK
from opencensus.ext.azure.log_exporter import AzureLogHandler
import logging

logger = logging.getLogger(__name__)
logger.addHandler(AzureLogHandler(connection_string='InstrumentationKey=your_instrumentation_key'))
logger.warning('Application started')

// C# example of configuring Application Insights SDK
using Microsoft.ApplicationInsights;

public class AppInsightsConfig
{
    public static void Main(string[] args)
    {
        var telemetryClient = new TelemetryClient();
        telemetryClient.TrackEvent("Application started");
    }
}

// TypeScript example of configuring Application Insights SDK
import * as appInsights from 'applicationinsights';

appInsights.setup('your_instrumentation_key').start();
const client = appInsights.defaultClient;
client.trackEvent({ name: 'Application started' });

// Java example of setting up performance tests with JMeter (setup is usually done outside of Java code)
import org.apache.jmeter.JMeter;

public class PerformanceTestSetup {
    public static void main(String[] args) {
        // JMeter setup is done via .jmx files and CLI
    }
}

# Python example of setting up performance tests with JMeter (setup is usually done outside of Python code)
from subprocess import run

run(['jmeter', '-n', '-t', 'test_plan.jmx'])

// C# example of setting up performance tests with JMeter (setup is usually done outside of C# code)
using System.Diagnostics;

public class PerformanceTestSetup
{
    public static void Main(string[] args)
    {
        Process.Start("jmeter", "-n -t test_plan.jmx");
    }
}

// TypeScript example of setting up performance tests with JMeter (setup is usually done outside of TypeScript code)
import { exec } from 'child_process';

exec('jmeter -n -t test_plan.jmx', (err, stdout, stderr) => {
    if (err) console.error(err);
    console.log(stdout);
});

// Java example of using kubectl for logs (not directly from Java)
import java.io.BufferedReader;
import java.io.InputStreamReader;

public class KubernetesLogs {
    public static void main(String[] args) throws Exception {
        Process process = Runtime.getRuntime().exec("kubectl logs my-pod");
        BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {
            System.out.println(line);
        }
    }
}

# Python example of using kubectl for logs
import subprocess

result = subprocess.run(['kubectl', 'logs', 'my-pod'], capture_output=True, text=True)
print(result.stdout)

// C# example of using kubectl for logs (not directly from C#)
using System.Diagnostics;

public class KubernetesLogs
{
    public static void Main(string[] args)
    {
        var process = new Process
        {
            StartInfo = new ProcessStartInfo
            {
                FileName = "kubectl",
                Arguments = "logs my-pod",
                RedirectStandardOutput = true,
                UseShellExecute = false,
                CreateNoWindow = true
            }
        };
        process.Start();
        string output = process.StandardOutput.ReadToEnd();
        process.WaitForExit();
        Console.WriteLine(output);
    }
}

// TypeScript example of using kubectl for logs
import { exec } from 'child_process';

exec('kubectl logs my-pod', (err, stdout, stderr) => {
    if (err) console.error(err);
    else console.log(stdout);
});

// Java example of setting up CloudWatch Alarm (setup is usually done via AWS Console or CLI)
import com.amazonaws.services.cloudwatch.AmazonCloudWatch;
import com.amazonaws.services.cloudwatch.AmazonCloudWatchClientBuilder;
import com.amazonaws.services.cloudwatch.model.PutMetricAlarmRequest;

public class CloudWatchAlarmSetup {
    public static void main(String[] args) {
        AmazonCloudWatch cloudWatch = AmazonCloudWatchClientBuilder.defaultClient();
        PutMetricAlarmRequest request = new PutMetricAlarmRequest()
            .withAlarmName("HighErrorRate")
            .withMetricName("Errors")
            .withNamespace("AWS/Lambda")
            .withStatistic("Sum")
            .withComparisonOperator("GreaterThanThreshold")
            .withThreshold(5.0);
        cloudWatch.putMetricAlarm(request);
    }
}

# Python example of setting up CloudWatch Alarm
import boto3

cloudwatch = boto3.client('cloudwatch')
cloudwatch.put_metric_alarm(
    AlarmName='HighErrorRate',
    MetricName='Errors',
    Namespace='AWS/Lambda',
    Statistic='Sum',
    ComparisonOperator='GreaterThanThreshold',
    Threshold=5.0
)

// C# example of setting up CloudWatch Alarm
using Amazon.CloudWatch;
using Amazon.CloudWatch.Model;
using System.Threading.Tasks;

public class CloudWatchAlarmSetup
{
    public static async Task Main(string[] args)
    {
        var client = new AmazonCloudWatchClient();
        var request = new PutMetricAlarmRequest
        {
            AlarmName = "HighErrorRate",
            MetricName = "Errors",
            Namespace = "AWS/Lambda",
            Statistic = "Sum",
            ComparisonOperator = ComparisonOperator.GreaterThanThreshold,
            Threshold = 5.0
        };
        await client.PutMetricAlarmAsync(request);
    }
}

// TypeScript example of setting up CloudWatch Alarm
import * as AWS from 'aws-sdk';

const cloudwatch = new AWS.CloudWatch();
const params = {
    AlarmName: 'HighErrorRate',
    MetricName: 'Errors',
    Namespace: 'AWS/Lambda',
    Statistic: 'Sum',
    ComparisonOperator: 'GreaterThanThreshold',
    Threshold: 5.0
};

cloudwatch.putMetricAlarm(params, (err, data) => {
    if (err) console.error(err);
    else console.log(data);
});