A. Configure the unified Amazon CloudWatch agent on the EC2 instances to publish the application logs files to a CloudWatch log group. Configure a metric filter on the CloudWatch log group to detect the critical errors and to create a custom metric. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure a CloudWatch alarm to use the custom metric to notify the SNS topic. Subscribe the application team’s email address to the SNS topic.
B. Install the Amazon Kinesis agent on the EC2 instances. Configure the Kinesis agent with the location of the log files. Stream the logs to a Kinesis Data Firehose delivery stream with an Amazon CloudWatch metrics stream as a destination. Configure an AWS Lambda function to detect the error message and to create a custom metric. Associate the Lambda function with the stream. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure a CloudWatch alarm to use the custom metric to notify the SNS topic. Subscribe the application team’s email address to the SNS topic.
C. Install the AWS X-Ray daemon on the EC2 instances. Instrument the application with the AWS Distro for OpenTelemetry (ADOT). Configure the ADOT collector with the location of the custom log files and the name of an Amazon CloudWatch log group. Use the CloudWatch embedded metric format to generate a custom metric that is based on the error message. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure a CloudWatch alarm to use the custom metric to notify the SNS topic. Subscribe the application team’s email address to the SNS topic.
D. Configure the unified Amazon CloudWatch agent on the EC2 instances to publish the application logs files to a CloudWatch log group. Create an Amazon OpenSearch Service domain. Subscribe the CloudWatch log group to the OpenSearch Service domain. Create an Amazon Simple Notification Service (Amazon SNS) topic. Configure an OpenSearch Service alert monitor to notify the SNS topic. Subscribe the application team’s email address to the SNS topic.