Oracle Exam 1Z0-1084-21 Topic 6 Question 13 Discussion

Application and systems logs can help you understand what is happening inside your cluster. The logs are particularly useful for debugging problems and monitoring cluster activity. Most modern applications have some kind of logging mechanism; as such, most container engines are likewise designed to support some kind of logging. The easiest and most embraced logging method for containerized applications is to write to the standard output and standard error streams.

Kubernetes also provides cluster-basedloggingto record container activity into a central logging subsystem.The standard output and standard error output of each containerin a Kubernetes cluster can be ingested using an agent likeFluentdrunning on each node into tools likeElasticsearchand viewed with Kibana. And finally, monitor containers, pods, applications, services, and other components of your cluster. One can use tools such asPrometheus,Grafana,Jaegerfor monitoring, visibility, and tracing the cluster.

https://dzone.com/articles/5-best-security-practices-for-kubernetes-and-oracle-kubernetes-engine

https://kubernetes.io/docs/concepts/cluster-administration/logging/

https://blogs.oracle.com/developers/5-best-practices-for-kubernetes-security