Each service instance will generate information about what it is doing in a standardized format, which contains logs at various levels such as errors, warning, info, debug, trace, fatal, and so on. The solution is to use a centralized logging service that collects logs from each service instance and stores them in some common place where the user can search and analyze the logs. This enables us to configure alerts for certain kinds of logs. Also, a centralized service will help to do audit logging, exception tracking, and API metrics. Available and widely used frameworks are Elastic Stack (Elasticsearch, Logstash, Kibana), AWS CloudTrail, and AWS CloudWatch.