[prometheus-users] How do I test blackbox exporter setup for Tomcat apps (running on Kubernetes/Istio)?

['Evelyn Pereira Souza' via Prometheus Users]

Hi




Blackbox config

- parse with Regex the body

- check for non 200er

- POST a document and see http return code

- check for slow requests (probe_duration)

- send custom headers (App specific)

- query REST API







status code 503:
no healthy upstream



best regards
Evelyn

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Soon we will migrate from classic VMs to containers (k8s). In the first step, I integrated all Tomcat apps into the blackbox exporter. Later I will deploy Prometheus Operator. How do I test my Blackbox Exporter setup? I know that it works for classic VMs, but I'm not sure if it detects all problems on k8s. Maybe there are issues specific to Kubernetes and Istio service mesh? For example, if I deleted all pods from a service, I got the following response Are there other things and use cases I should test / catch / expect? What difference from a Java app perspective VMs vs. Containers?

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