logging
beats, elasticsearch, kibana
jeez...
beats collects logs and sends them to logstash (fluentd or fluentbit would be an elternative)
logstash is the database that stores the data
elasticsearch is the search engine for the data
kibana is the web interface for elasticsearch
there are multiple ways to deploy all of that the most k8 way is ECK (elastic cloud on kubernetes) ECK is a operator and CRDs (like rook) it includes crds for beats, elasticsearch and kibana
BUT NOT LOGSTASH! logstash might not be needed if one uses filebeat (part of beats) ???
improvements: get working! metrics liveness probes resource limits